Is #024E59 accessible for body text on white?

#024E59 has a contrast ratio of 9.39:1 against white, which is sufficient for WCAG AA body text (4.5:1).

What is the complementary color of #024E59?

The complement of #024E59 is #590D02.

#024E59 Petrol

rgb(2, 78, 89)

Color conversions

HEX: #024E59
RGB: rgb(2, 78, 89)
RGBA: rgba(2, 78, 89, 1)
HSL: hsl(188, 96%, 18%)
HSV / HSB: hsv(188, 98%, 35%)
CMYK: cmyk(98%, 12%, 0%, 65%)

Wide-gamut spaces

XYZ: xyz(4.552, 6.182, 10.403)
LAB: lab(29.87 -16.13 -12.35)
LCH: lch(29.87 20.32 217.43)
OKLAB: oklab(38.91% -0.0572 -0.0345)
OKLCH: oklch(38.91% 0.0668 211.09)
Nearest name: Petrol

Shades, tints and tones

Shades

Tints

Tones

Color harmonies

Complementary

The hue directly opposite on the color wheel. Maximum contrast, ideal for a single accent against a dominant brand color.

Analogous

Neighbouring hues that share a temperature. The safest harmony for calm, cohesive interfaces.

Triadic

Three hues evenly spaced 120 degrees apart. Vibrant and balanced — use one as dominant and the other two sparingly.

Split Complementary

The complement split into two adjacent hues. Nearly the contrast of complementary with noticeably less tension.

Square (Tetradic)

Four hues at 90-degree intervals. A rich set for illustration, data visualisation, and category coding.

Rectangle (Tetradic)

Two complementary pairs offset by 60 degrees. Gives two warm and two cool options in one system.

Monochromatic

A single hue across five lightness levels. The foundation of most UI scales and the most accessible starting point.

Similar colors

Closest matches

Opacity variations

#024e591a

#024e5933

#024e594d

#024e5966

#024e5980

#024e5999

#024e59b3

#024e59cc

#024e59e6

#024e59ff

On white

9.39:1

Body text AAA · Large text AA

On black

2.24:1

Body text Fail · Large text Fail

White-on-color contrast is 9.39:1.

Color blindness preview

Protanopia

No red cones — ~1% of men

Protanomaly

Reduced red sensitivity — ~1% of men

Deuteranopia

No green cones — ~1% of men

Deuteranomaly

Reduced green sensitivity — ~5% of men

Tritanopia

No blue cones — very rare

Tritanomaly

Reduced blue sensitivity — very rare

Achromatopsia

No color perception — ~1 in 30,000

Achromatomaly

Partial color perception — rare

Meaning, psychology and brand usage

Clean, technical, and effortlessly modern

Cyan and teal sit between blue's trust and green's calm, reading as clinical and precise. They perform well in data visualisation because they remain distinguishable for most forms of colour vision deficiency.

Water, hygiene, and clarity almost universally. Teal specifically carries a mid-century and medical association in Western design history.

Cyan entered common vocabulary through four-colour printing, where it is one of the process inks. Egyptian blue and later cerulean gave artists the closest historical equivalents.

Excellent for healthcare, SaaS, and fintech seeking approachability without blue's ubiquity. Deepen it for text use — bright cyan rarely reaches AA on white.

Common industries: Healthcare, SaaS, Travel, Water & utilities, Beauty. Pairs well with coral for warmth, deep navy for hierarchy, soft gray for restraint.

Code exports

CSS

:root {
  --color-petrol: #024e59;
  --color-petrol-rgb: 2 78 89;
  --color-petrol-hsl: 188 96% 18%;
  --color-petrol-oklch: 38.91% 0.0668 211.09;
}

.element {
  color: #024e59;
  background-color: hsl(188, 96%, 18%);
  border: 1px solid rgb(2 78 89 / 40%);
}

SCSS

$petrol: #024e59;
$petrol-light: #81a7ac;
$petrol-dark: #01272d;

.element {
  color: $petrol;
  background: rgba($petrol, 0.12);

  &:hover {
    color: darken($petrol, 8%);
  }
}

LESS

@petrol: #024e59;
@petrol-light: lighten(@petrol, 12%);
@petrol-dark: darken(@petrol, 12%);

.element {
  color: @petrol;
  background: fade(@petrol, 12%);
}

Tailwind CSS

/* Tailwind v4 — src/styles.css */
@theme {
  --color-petrol-50: #ccdcde;
  --color-petrol-100: #b3cacd;
  --color-petrol-200: #9ab8bd;
  --color-petrol-300: #67959b;
  --color-petrol-400: #35717a;
  --color-petrol-500: #024e59;
  --color-petrol-600: #024650;
  --color-petrol-700: #01373e;
  --color-petrol-800: #01272d;
  --color-petrol-900: #01171b;
}

/* Usage */
<div class="bg-petrol-500 text-petrol-50 ring-petrol-600" />

/* Arbitrary value, no config needed */
<div class="bg-[#024e59]" />

Bootstrap

// Bootstrap 5 — _variables.scss (before importing bootstrap)
$petrol: #024e59;
$primary: $petrol;

$theme-colors: map-merge($theme-colors, (
  "petrol": $petrol
));

// Generates .text-petrol, .bg-petrol, .btn-petrol
@import "bootstrap/scss/bootstrap";

Flutter

import 'package:flutter/material.dart';

const Color petrol = Color(0xFF024E59);

// As a MaterialColor swatch
const MaterialColor petrolSwatch = MaterialColor(0xFF024E59, <int, Color>{
  50: Color(0xFFCCDCDE),
  100: Color(0xFFB3CACD),
  200: Color(0xFF9AB8BD),
  300: Color(0xFF67959B),
  400: Color(0xFF35717A),
  500: Color(0xFF024E59),
  600: Color(0xFF024650),
  700: Color(0xFF01373E),
  800: Color(0xFF01272D),
  900: Color(0xFF01171B),
});

Swift / SwiftUI

import SwiftUI

extension Color {
    /// #024e59 — Petrol
    static let petrol = Color(
        red: 0.0078,
        green: 0.3059,
        blue: 0.349
    )
}

// UIKit
extension UIColor {
    static let petrol = UIColor(
        red: 0.0078,
        green: 0.3059,
        blue: 0.349,
        alpha: 1.0
    )
}

Android

<!-- res/values/colors.xml -->
<resources>
    <color name="petrol">#024E59</color>
    <color name="petrol_translucent">#80024E59</color>
</resources>

<!-- Jetpack Compose -->
val Petrol = Color(0xFF024E59)

JavaScript

export const PETROL = {
  hex: "#024e59",
  rgb: [2, 78, 89],
  hsl: [188, 96, 18],
  oklch: "oklch(38.91% 0.0668 211.09)",
};

JSON tokens

{
  "$schema": "https://design-tokens.org/schema.json",
  "petrol": {
    "$type": "color",
    "$value": "#024e59",
    "$description": "Petrol — generated by ColorVerse AI"
  }
}