What color is #304D59?

#304D59 is a dark, desaturated azure, closest to the named color Nocturne. It belongs to the gray family of colors.

What is the RGB value of #304D59?

The RGB value is 48, 77, 89: 48 red, 77 green and 89 blue on a 0 to 255 scale.

What is the complementary color of #304D59?

The complementary color is #593C30, found by rotating the hue 180° on the color wheel.

Is black or white text better on #304D59?

White text. Black text has a contrast ratio of 2.33:1 and white text 9.01:1. WCAG asks for at least 4.5:1 for normal text.

#304D59 color

#304D59 rgb(48, 77, 89)

Shades of gray

The hex color #304D59 is a dark, desaturated azure.

In the RGB color model it is made of 18.8% red, 30.2% green and 34.9% blue (48, 77, 89).

Its hue angle is 198°, with 30% saturation and 27% lightness. For print, the CMYK equivalent is 46% cyan, 13% magenta, 0% yellow and 65% black.

The closest named color is Nocturne (#344D58), a difference of 1 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 9.01:1).

#304D59 color codes

HEX	`#304D59`
RGB	`rgb(48, 77, 89)`
RGB percent	`rgb(18.8%, 30.2%, 34.9%)`
HSL	`hsl(198, 30%, 27%)`
HSV / HSB	`hsv(198, 46%, 35%)`
CMYK	`cmyk(46%, 13%, 0%, 65%)`
CIE LAB	`lab(31.01, -7.21, -10.47)`
CIE LCH	`lch(31.01, 12.71, 235.43)`
CIE XYZ	`xyz(5.675, 6.657, 10.435)`
Decimal	`3165529`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #304D59, 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 #304D59	Ratio	AA	AAA	AA large
Sample text	2.33:1	Fail	Fail	Fail
Sample text	9.01:1	Pass	Pass	Pass

#304D59 as text on	Ratio	AA	AAA	AA large
Sample text	9.01:1	Pass	Pass	Pass
Sample text	2.33:1	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 #304D59 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #304d59; }
.text { color: #304d59; }
.border { border: 2px solid #304d59; }
.transparent { background-color: rgb(48 77 89 / 50%); }
.gradient { background: linear-gradient(to right, #304d59, #303959); }

Background

Text color

Border

Similar colors

Closest common color name: Charcoal.

Questions

What color is #304D59?: #304D59 is a dark, desaturated azure, closest to the named color Nocturne. It belongs to the gray family of colors.
What is the RGB value of #304D59?: The RGB value is 48, 77, 89: 48 red, 77 green and 89 blue on a 0 to 255 scale.
What is the complementary color of #304D59?: The complementary color is #593C30, found by rotating the hue 180° on the color wheel.
Is black or white text better on #304D59?: White text. Black text has a contrast ratio of 2.33:1 and white text 9.01:1. WCAG asks for at least 4.5:1 for normal text.