What color is #424C66?

#424C66 is a dark, grayish blue, closest to the named color Bonne Nuit. It belongs to the blue family of colors.

What is the RGB value of #424C66?

The RGB value is 66, 76, 102: 66 red, 76 green and 102 blue on a 0 to 255 scale.

What is the complementary color of #424C66?

The complementary color is #665C42, found by rotating the hue 180° on the color wheel.

Is black or white text better on #424C66?

White text. Black text has a contrast ratio of 2.46:1 and white text 8.55:1. WCAG asks for at least 4.5:1 for normal text.

#424C66 color

#424C66 rgb(66, 76, 102)

Shades of blue

The hex color #424C66 is a dark, grayish blue.

In the RGB color model it is made of 25.9% red, 29.8% green and 40% blue (66, 76, 102).

Its hue angle is 223°, with 21% saturation and 33% lightness. For print, the CMYK equivalent is 35% cyan, 25% magenta, 0% yellow and 60% black.

The closest named color is Bonne Nuit (#3A4866), a difference of 2.3 ΔE, a small difference.

White text is the more readable choice on this background (contrast 8.55:1).

#424C66 color codes

HEX	`#424C66`
RGB	`rgb(66, 76, 102)`
RGB percent	`rgb(25.9%, 29.8%, 40%)`
HSL	`hsl(223, 21%, 33%)`
HSV / HSB	`hsv(223, 35%, 40%)`
CMYK	`cmyk(35%, 25%, 0%, 60%)`
CIE LAB	`lab(32.45, 3.01, -16.42)`
CIE LCH	`lch(32.45, 16.7, 280.38)`
CIE XYZ	`xyz(7.229, 7.286, 13.593)`
Decimal	`4344934`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #424C66, based on their position on the color wheel.

Complementary

The color opposite on the color wheel (180°). Strongest contrast.

Analogous

Neighbors 30° either side. Calm, natural combinations.

Split complementary

The two colors next to the complement (150° and 210°).

Triadic

Three colors evenly spaced, 120° apart.

Tetradic (square)

Four colors 90° apart.

Shades, tints and tones

Shades (darker, mixed with black)

Tints (lighter, mixed with white)

Tones (mixed with gray)

Contrast and accessibility

Text on #424C66	Ratio	AA	AAA	AA large
Sample text	2.46:1	Fail	Fail	Fail
Sample text	8.55:1	Pass	Pass	Pass

#424C66 as text on	Ratio	AA	AAA	AA large
Sample text	8.55:1	Pass	Pass	Pass
Sample text	2.46:1	Fail	Fail	Fail

WCAG 2 asks for 4.5:1 for normal text (AA), 7:1 for AAA, and 3:1 for large text. Check other pairs.

Color blindness simulation

How #424C66 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #424c66; }
.text { color: #424c66; }
.border { border: 2px solid #424c66; }
.transparent { background-color: rgb(66 76 102 / 50%); }
.gradient { background: linear-gradient(to right, #424c66, #4a4266); }

Background

Text color

Border

Similar colors

Closest common color name: Charcoal.

Questions

What color is #424C66?: #424C66 is a dark, grayish blue, closest to the named color Bonne Nuit. It belongs to the blue family of colors.
What is the RGB value of #424C66?: The RGB value is 66, 76, 102: 66 red, 76 green and 102 blue on a 0 to 255 scale.
What is the complementary color of #424C66?: The complementary color is #665C42, found by rotating the hue 180° on the color wheel.
Is black or white text better on #424C66?: White text. Black text has a contrast ratio of 2.46:1 and white text 8.55:1. WCAG asks for at least 4.5:1 for normal text.