ImageColorPicker.com

#2F5DB0 Dusk Cobalt

Generate color codes, variations, harmonies, and check contrast ratios.

Color conversion

#2f5db0

CMYK…

CMYK profile: Coated FOGRA39 (Photoshop's default for Europe)

Variations

The purpose of this section is to accurately produce tints (pure white added) and shades (pure black added) of your selected color in 10% increments.

Pro tip: Use shades for hover states and shadows, tints for highlights and backgrounds.

Shades

Darker variations created by adding black to your base color.

Tints

Lighter variations created by adding white to your base color.

Common use cases

  • • UI component states (hover, active, disabled)
  • • Creating depth with shadows and highlights
  • • Building consistent color systems

Design system tip

These variations form the foundation of a cohesive color palette. Export them to maintain consistency across your entire project.

Color combinations

Each harmony has its own mood. Use harmonies to brainstorm color combos that work well together.

How to use

Click on any color to copy its hex value. These combinations are mathematically proven to create visual harmony.

Why it matters

Color harmonies create balance and evoke specific emotions in your designs.

Complement

A color and its opposite on the color wheel, +180 degrees of hue. High contrast.

Best for: High-impact designs, CTAs, logos

Split-complementary

A color and two adjacent to its complement, +/-30 degrees of hue from the value opposite the main color. Bold like a straight complement, but more versatile.

Best for: Vibrant yet balanced layouts

Triadic

Three colors spaced evenly along the color wheel, each 120 degrees of hue apart. Best to allow one color to dominate and use the others as accents.

Best for: Playful, energetic designs

Analogous

Three colors of the same luminance and saturation with hues that are adjacent on the color wheel, 30 degrees apart. Smooth transitions.

Best for: Nature-inspired, calming interfaces

Monochromatic

Three colors of the same hue with luminance values +/-50%. Subtle and refined.

Best for: Minimalist, sophisticated designs

Tetradic

Two sets of complementary colors, separated by 60 degrees of hue.

Best for: Rich, diverse color schemes

Color theory principles

Balance

Use one dominant color, support with secondary, and accent sparingly.

Contrast

Ensure sufficient contrast for readability and accessibility.

Harmony

Colors should work together to create a unified visual experience.

Color contrast checker

Test color combinations to ensure they meet WCAG accessibility standards for text readability.

Contrast

1.00
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Very poor
Small text
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Large text
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WCAG standards

AA:Minimum contrast ratio of 4.5:1 for normal text and 3:1 for large text. Required for most websites.
AAA:Enhanced contrast ratio of 7:1 for normal text and 4.5:1 for large text. Recommended for optimal accessibility.
Insufficient contrast for all text sizes - fails WCAG standards.

Advanced contrast checker

Fine-tune with sliders, multiple previews & more

Everybody is a Genius. But If You Judge a Fish by Its Ability to Climb a Tree, It Will Live Its Whole Life Believing that It is Stupid.

- Albert Einstein

Technical formats

Explore advanced color space representations and professional color models used in video production, photography, scientific applications, and color management systems. These technical formats provide precise color specifications for specialized industries and applications.

Practical formats

Convert colors to practical formats for real-world applications including print simulation, LED displays, terminal output, and data encoding. These formats help you implement colors across different media, platforms, and physical devices.

Color analysis

Analyze color properties with advanced metrics including spectral composition, color purity, metamerism effects, and perceptual characteristics. These tools provide deep insights into color behavior and appearance under different viewing conditions.

Blindness simulator

Check how a color is perceived by people with different types of color blindness to create more accessible designs. Understanding color perception helps ensure your content is accessible to everyone.

Creative aspects

Explore the artistic and psychological dimensions of colors including seasonal associations, emotional impact, natural occurrences, historical pigments, and color mixing recipes for creative applications.

Frequently asked questions

#2F5DB0 is Dusk Cobalt. A saturated mid-cobalt that reads as a composed, slightly muted royal blue with a cool, steel undertone. It conveys steady resolve and a thoughtful, modern authority.

reliability in corporate contexts, intellectual rigor in academic or editorial settings, navigation and depth (nautical undertones), calm professionalism for healthcare/tech, subdued prestige rather than ostentation. In Western corporate culture this shade reads as dependable and executive; in East Asian contexts blue often signals healing and harmony, so this tone fits medical or educational uses; in Mediterranean craft traditions it recalls cobalt glazes and is associated with artisanal heritage and craftsmanship.

In design, this shade reduces perceived visual noise and sharpens information hierarchy, helping users focus on content. In a physical space it cools warm palettes and anchors furnishings without feeling cold or aloof.

Dusk Cobalt pairs well with #B06B2F, #2F8CB0, #B02F8C. #B06B2F: Warm complementary — creates high-impact call-to-action contrast while keeping an elegant, mature palette (complementary harmony).. #2F8CB0: Analogous cool teal — extends the blue range gently for secondary UI elements and data-series differentiation (analogous harmony).. #B02F8C: Triadic magenta accent — introduces a lively, balanced contrast for highlights and promotional elements without clashing (triadic harmony)..

Calm authority with measured confidence Viewers typically feel reassured and mentally centered when presented with this color. Key traits: trustworthiness, competence, stability, intellectual clarity, restraint.

Dusk Cobalt is commonly used in Enterprise SaaS and analytics, Financial services and fintech, Higher education and academic publishing. It fits brand archetypes like The Sage, The Ruler.

This mid-cobalt hue sits between historical smalt, Prussian blue, and later synthetic cobalt pigments. Early occurrences of similar tones date to the 18th century when Prussian blue (invented in Berlin, c. 1706) and ground cobalt glass (smalt) were used by painters and ceramicists to achieve stable deep blues without the expense of natural ultramarine.

Maintain contrast hierarchies: reserve Dusk Cobalt for anchors and focal surfaces while using lighter neutrals and a single warm accent to create readable, balanced compositions. Best practices: Pair Dusk Cobalt with a warm complementary (B06B2F) for CTAs at low visual weight (6–12%) to create energetic emphasis without breaking the professional tone.; Use generous white space and 16–24pt headline sizes when placing white type on this color to preserve legibility and perceived openness.; Introduce natural textures (oak wood, brushed brass) to warm interiors or brand assets so the blue reads approachable rather than institutional..

Contrast ratio on white: 6.34:1, on black: 3.31:1. Passes WCAG AA for normal and large text.