Color Readability Checker

A color readability checker helps you assess whether your color choices support comfortable reading.

Color Settings

Configure foreground and background colors

HEX
#000000
HEX
#FFFFFF

Typography

Adjust font size and weight settings

16px
12px18px (Large)24px (XL)48px
400
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

AA
FAIL

WCAG 2.1 AA

A
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
Background
#FFFFFF

Pick _ Swatches

Relevant _ Article

01

10 Color Tools Every Web Designer Needs in 2026 And Why One Platform Has Them All

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.

02

Best Free Color Palette Generator for Web Designers in 2026 — Why Coloraccy Is the Smarter Choice

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.

03

How to Choose Brand Colors That Actually Work (Complete Guide)

Most brand color decisions are made backwards. A founder picks a color they like, a designer builds around it, and six months later the brand feels slightly off — not wrong enough to fix, but not quite right either. The colors work in isolation and fall apart in application.

04

How to Use Color Palettes in Web UI (Best Practices)

Most color mistakes in web UI are not taste problems. They are structural problems. The designer picked good colors — a warm cream, a deep teal, a muted coral — but without a clear system for how those colors relate to each other and which roles they play, the interface ends up feeling inconsistent, visually noisy, or simply hard to use.

Observe _ Spectrum