Accessible Color Contrast Checker

An accessible color contrast checker helps you create color combinations that are easier for everyone to read.

Color Settings

Configure foreground and background colors

Foreground Color (Text)

HEX

#000000

Background Color

HEX

#FFFFFF

Typography

Adjust font size and weight settings

Font Size16px

12px18px (Large)24px (XL)48px

Font Weight400

ThinNormalBoldBlack

Environmental Simulation

Test readability under different conditions

Contrast Analysis

Testing in Standard View conditions

1.00:1

Effective RatioAdjusted for scenario

1.00:1

PoorGoodExcellent

Compliance Analysis

Compliance analysis of WCAG performance

AAA

FAIL

WCAG 2.1 AAA

FAIL

WCAG 2.1 AA

FAIL

WCAG 2.1 A

APCA

PASS

WCAG 3.0 Draft

Accessibility Audit

Detailed breakdown of WCAG performance

Text Size Classification

Normal Text

Font size: 16px, Weight: 400

Effective Contrast Ratio

1.00:1

Adjusted for Standard View

WCAG 2.1 Compliance

Non-compliant

Needs improvement (1.00:1 < 4.5:1)

WCAG 3.0 (APCA)

100

APCA contrast score: 100

Visual Impairment Support

Limited

Readability for low vision users

Mobile Readability

Poor

Outdoor visibility assessment

Age-related Vision

Poor

Suitable for elderly users

Color Deficiency Safety

Safe

Maintains contrast in grayscale

Typography Impact

Positive

Font settings enhance readability

Environmental Factors

Standard

Testing in Standard View

Legal Compliance

Non-compliant

Meets ADA/WCAG requirements

User Experience Score

10/100

Overall accessibility rating

Component Preview

Real-time visual testing of your color pair

Preview Heading

Accessibility is the practice of making your websites usable by as many people as possible. We often think of this as being about people with disabilities, but the practice of making sites accessible also benefits other groups such as those using mobile devices, or those with slow network connections.

Text

#000000

Guide to WCAG Color Contrast for Accessible Design

Imagine landing on a website where the light gray text sits on a white background. You squint, tilt your screen, and still struggle to read it. Now imagine that experience for someone with a visual impairment — or an aging user in bright sunlight on a mobile screen. This is not a hypothetical.

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Discover the 10 essential color tools professional web designers use daily — from palette generators to WCAG contrast checkers. See how Coloraccy replaces them all in one free platform.

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If you have spent any time designing websites, mobile apps, or brand identities, you already know how much time disappears into color decisions. Should this button be #3B82F6 or a shade darker? Does your background-text contrast actually pass WCAG AA? Does your palette feel cohesive or just accidental? These are not small questions — they are the difference between a product that feels polished and one that looks like it was assembled in a hurry.

5 Adaptive Color System Palettes for Modern UI

Most designers pick colors once and move on. But modern interfaces live across dozens of contexts — dark mode, light mode, high-contrast accessibility settings, mobile screens, large monitors, and everything in between. A single static palette cannot serve all of them well.

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