What color is #283F6A?

#283F6A is a dark, desaturated azure, closest to the named color Napoleonic Blue. It belongs to the blue family of colors.

What is the RGB value of #283F6A?

The RGB value is 40, 63, 106: 40 red, 63 green and 106 blue on a 0 to 255 scale.

What is the complementary color of #283F6A?

The complementary color is #6A5328, found by rotating the hue 180° on the color wheel.

Is black or white text better on #283F6A?

White text. Black text has a contrast ratio of 2.01:1 and white text 10.45:1. WCAG asks for at least 4.5:1 for normal text.

#283F6A color

#283F6A rgb(40, 63, 106)

Shades of blue

The hex color #283F6A is a dark, desaturated azure.

In the RGB color model it is made of 15.7% red, 24.7% green and 41.6% blue (40, 63, 106).

Its hue angle is 219°, with 45% saturation and 29% lightness. For print, the CMYK equivalent is 62% cyan, 41% magenta, 0% yellow and 58% black.

The closest named color is Napoleonic Blue (#2C4170), a difference of 1.2 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 10.45:1).

#283F6A color codes

HEX	`#283F6A`
RGB	`rgb(40, 63, 106)`
RGB percent	`rgb(15.7%, 24.7%, 41.6%)`
HSL	`hsl(219, 45%, 29%)`
HSV / HSB	`hsv(219, 62%, 42%)`
CMYK	`cmyk(62%, 41%, 0%, 58%)`
CIE LAB	`lab(26.87, 5.69, -27.83)`
CIE LCH	`lch(26.87, 28.4, 281.56)`
CIE XYZ	`xyz(5.253, 5.046, 14.33)`
Decimal	`2637674`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #283F6A, 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 #283F6A	Ratio	AA	AAA	AA large
Sample text	2.01:1	Fail	Fail	Fail
Sample text	10.45:1	Pass	Pass	Pass

#283F6A as text on	Ratio	AA	AAA	AA large
Sample text	10.45:1	Pass	Pass	Pass
Sample text	2.01:1	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 #283F6A looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #283f6a; }
.text { color: #283f6a; }
.border { border: 2px solid #283f6a; }
.transparent { background-color: rgb(40 63 106 / 50%); }
.gradient { background: linear-gradient(to right, #283f6a, #32286a); }

Background

Text color

Border

Similar colors

Closest common color name: Prussian Blue.

Questions

What color is #283F6A?: #283F6A is a dark, desaturated azure, closest to the named color Napoleonic Blue. It belongs to the blue family of colors.
What is the RGB value of #283F6A?: The RGB value is 40, 63, 106: 40 red, 63 green and 106 blue on a 0 to 255 scale.
What is the complementary color of #283F6A?: The complementary color is #6A5328, found by rotating the hue 180° on the color wheel.
Is black or white text better on #283F6A?: White text. Black text has a contrast ratio of 2.01:1 and white text 10.45:1. WCAG asks for at least 4.5:1 for normal text.