What color is #283D59?

#283D59 is a dark, desaturated azure, closest to the named color Nautilus. It belongs to the blue family of colors.

What is the RGB value of #283D59?

The RGB value is 40, 61, 89: 40 red, 61 green and 89 blue on a 0 to 255 scale.

What is the complementary color of #283D59?

The complementary color is #594428, found by rotating the hue 180° on the color wheel.

Is black or white text better on #283D59?

White text. Black text has a contrast ratio of 1.9:1 and white text 11.04:1. WCAG asks for at least 4.5:1 for normal text.

#283D59 color

#283D59 rgb(40, 61, 89)

Shades of blue

The hex color #283D59 is a dark, desaturated azure.

In the RGB color model it is made of 15.7% red, 23.9% green and 34.9% blue (40, 61, 89).

Its hue angle is 214°, with 38% saturation and 25% lightness. For print, the CMYK equivalent is 55% cyan, 31% magenta, 0% yellow and 65% black.

The closest named color is Nautilus (#273C5A), a difference of 0.8 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 11.04:1).

#283D59 color codes

HEX	`#283D59`
RGB	`rgb(40, 61, 89)`
RGB percent	`rgb(15.7%, 23.9%, 34.9%)`
HSL	`hsl(214, 38%, 25%)`
HSV / HSB	`hsv(214, 55%, 35%)`
CMYK	`cmyk(55%, 31%, 0%, 65%)`
CIE LAB	`lab(25.29, 0.83, -19.32)`
CIE LCH	`lch(25.29, 19.34, 272.46)`
CIE XYZ	`xyz(4.346, 4.51, 10.091)`
Decimal	`2637145`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #283D59, 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 #283D59	Ratio	AA	AAA	AA large
Sample text	1.9:1	Fail	Fail	Fail
Sample text	11.04:1	Pass	Pass	Pass

#283D59 as text on	Ratio	AA	AAA	AA large
Sample text	11.04:1	Pass	Pass	Pass
Sample text	1.9:1	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 #283D59 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #283d59; }
.text { color: #283d59; }
.border { border: 2px solid #283d59; }
.transparent { background-color: rgb(40 61 89 / 50%); }
.gradient { background: linear-gradient(to right, #283d59, #2b2859); }

Background

Text color

Border

Similar colors

Closest common color name: Prussian Blue.

Questions

What color is #283D59?: #283D59 is a dark, desaturated azure, closest to the named color Nautilus. It belongs to the blue family of colors.
What is the RGB value of #283D59?: The RGB value is 40, 61, 89: 40 red, 61 green and 89 blue on a 0 to 255 scale.
What is the complementary color of #283D59?: The complementary color is #594428, found by rotating the hue 180° on the color wheel.
Is black or white text better on #283D59?: White text. Black text has a contrast ratio of 1.9:1 and white text 11.04:1. WCAG asks for at least 4.5:1 for normal text.