What is the minimum contrast ratio for WCAG AA compliance?

For WCAG AA compliance, normal text requires a minimum contrast ratio of 4.5:1, while large text (18pt or 14pt bold) requires 3:1.

What is the difference between WCAG AA and AAA standards?

WCAG AAA requires higher contrast ratios: 7:1 for normal text and 4.5:1 for large text, compared to AA's 4.5:1 and 3:1 respectively.

How do I fix poor color contrast?

Use our automatic fix feature to adjust either text or background colors while maintaining your design intent, or manually adjust colors using HSL sliders with visual indicators showing optimal zones for AA/AAA compliance.

What are the visual indicators on the adjustment sliders?

The green zones and AA/AAA markers show optimal ranges for achieving WCAG compliance. The direction hints (Lighter/Darker) guide you toward better contrast based on your current color combination.

Can I test custom color combinations?

Yes, you can enter any hex color codes or use the color picker to select custom colors. The URL updates automatically so you can share specific color combinations.

Color Contrast Checker - WCAG AA & AAA Compliance Tool

1.00:1

Ukuphikisana

Fail

Kubi kakhulu

Umbhalo Ojwayelekile

AA (4.5:1)

✖

AAA (7:1)

✖

Umbhalo omkhulu

AA (3:1)

✖

AAA (4.5:1)

✖

Umbala Wombhalo

#FFFFFF

#ffffff

Umbala Wangemuva

#546E7A

#546e7a

Izixazululo Eziphuthumayo

Isihloko sokubuka kuqala

Inja ebomvu esheshayo igxuma phezu kwenja evila

Isibonelo sombhalo omncane (12px)

Umbhalo

#ffffff

Isizinda

#546e7a

Izindinganiso ze-WCAG

Level AA

Isilinganiso esincane sika 4.5:1 sombhalo ojwayelekile no-3:1 wombhalo omkhulu. Okudingekayo kwamaningi amawebhusayithi.

Level AAA

Isilinganiso esithuthukisiwe esingu-7:1 sombhalo ojwayelekile no 4.5:1 wombhalo omkhulu. Kunconywa ukuze kutholakalwe kalula.

Ukungabi khona kokuhlukana okwanele kuzo zonke izincwadi - akuhambisani nezindinganiso ze-WCAG.

Umhloli wokuphikisana kombala

Bala isilinganiso sokuphikisana kombala wombhalo nombala wangemuva.

Khetha umbala usebenzisa i-color picker yombhalo nombala we-background noma faka umbala nge-RGB hexadecimal format (isb., #259 noma #2596BE). Ungashintsha isilayidi ukukhetha umbala. I-Web Content Accessibility Guidelines (WCAG) ineseluleko esithile sokusiza nokuthi ngabe umbhalo uyafundeka yini kubasebenzisi abangabona kahle. Lezi zindlela zisebenzisa ukusebenza okubacakalayo nokwenza isilinganiso. Usebenzisa le fomula, i-WCAG ithi umbala 4.5:1 nesikhumba sowumbhalo nesidlalela esifanele umbhalo ojwayelekile, futhi umbhalo omkhulu (18+ pt ojwayelekile, noma 14+ pt obold) kufanele ube okungenani isilinganiso sikambala esingu-3:1.

Izici Eziyinhloko

• Ukubalwa kwesilinganiso sokuhlukana ngesikhathi sangempela
• Ukuhlolwa kokuhambisana ne-WCAG AA & AAA
• Izilayida ze-HSL zokulungisa kahle
• Izindlela eziningi zokubuka kuqala

Amathuluzi Athuthukile

• Ukulungiswa kombala okuzenzakalelayo
• Izibonelo zombhalo nesizinda
• Ukutholwa kwegama lombala
• Thumela imiphumela

Umhloli Wokuphikisana Kombala