What color is #424C5B?

#424C5B is a dark, grayish azure, closest to the named color Starless Night. It belongs to the gray family of colors.

What is the RGB value of #424C5B?

The RGB value is 66, 76, 91: 66 red, 76 green and 91 blue on a 0 to 255 scale.

What is the complementary color of #424C5B?

The complementary color is #5B5142, found by rotating the hue 180° on the color wheel.

Is black or white text better on #424C5B?

White text. Black text has a contrast ratio of 2.42:1 and white text 8.69:1. WCAG asks for at least 4.5:1 for normal text.

#424C5B color

#424C5B rgb(66, 76, 91)

Shades of gray

The hex color #424C5B is a dark, grayish azure.

In the RGB color model it is made of 25.9% red, 29.8% green and 35.7% blue (66, 76, 91).

Its hue angle is 216°, with 16% saturation and 31% lightness. For print, the CMYK equivalent is 27% cyan, 16% magenta, 0% yellow and 64% black.

The closest named color is Starless Night (#3E4855), a difference of 1.7 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 8.69:1).

#424C5B color codes

HEX	`#424C5B`
RGB	`rgb(66, 76, 91)`
RGB percent	`rgb(25.9%, 29.8%, 35.7%)`
HSL	`hsl(216, 16%, 31%)`
HSV / HSB	`hsv(216, 27%, 36%)`
CMYK	`cmyk(27%, 16%, 0%, 64%)`
CIE LAB	`lab(31.99, -0.13, -10.14)`
CIE LCH	`lch(31.99, 10.14, 269.28)`
CIE XYZ	`xyz(6.719, 7.082, 10.909)`
Decimal	`4344923`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #424C5B, 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 #424C5B	Ratio	AA	AAA	AA large
Sample text	2.42:1	Fail	Fail	Fail
Sample text	8.69:1	Pass	Pass	Pass

#424C5B as text on	Ratio	AA	AAA	AA large
Sample text	8.69:1	Pass	Pass	Pass
Sample text	2.42:1	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 #424C5B looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #424c5b; }
.text { color: #424c5b; }
.border { border: 2px solid #424c5b; }
.transparent { background-color: rgb(66 76 91 / 50%); }
.gradient { background: linear-gradient(to right, #424c5b, #45425b); }

Background

Text color

Border

Similar colors

Closest common color name: Charcoal.

Questions

What color is #424C5B?: #424C5B is a dark, grayish azure, closest to the named color Starless Night. It belongs to the gray family of colors.
What is the RGB value of #424C5B?: The RGB value is 66, 76, 91: 66 red, 76 green and 91 blue on a 0 to 255 scale.
What is the complementary color of #424C5B?: The complementary color is #5B5142, found by rotating the hue 180° on the color wheel.
Is black or white text better on #424C5B?: White text. Black text has a contrast ratio of 2.42:1 and white text 8.69:1. WCAG asks for at least 4.5:1 for normal text.