What color is #284C66?

#284C66 is a dark, desaturated azure, closest to the named color Seafarer. It belongs to the blue family of colors.

What is the RGB value of #284C66?

The RGB value is 40, 76, 102: 40 red, 76 green and 102 blue on a 0 to 255 scale.

What is the complementary color of #284C66?

The complementary color is #664228, found by rotating the hue 180° on the color wheel.

Is black or white text better on #284C66?

White text. Black text has a contrast ratio of 2.32:1 and white text 9.07:1. WCAG asks for at least 4.5:1 for normal text.

#284C66 color

#284C66 rgb(40, 76, 102)

Shades of blue

The hex color #284C66 is a dark, desaturated azure.

In the RGB color model it is made of 15.7% red, 29.8% green and 40% blue (40, 76, 102).

Its hue angle is 205°, with 44% saturation and 28% lightness. For print, the CMYK equivalent is 61% cyan, 25% magenta, 0% yellow and 60% black.

The closest named color is Seafarer (#204D68), a difference of 1.6 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 9.07:1).

#284C66 color codes

HEX	`#284C66`
RGB	`rgb(40, 76, 102)`
RGB percent	`rgb(15.7%, 29.8%, 40%)`
HSL	`hsl(205, 44%, 28%)`
HSV / HSB	`hsv(205, 61%, 40%)`
CMYK	`cmyk(61%, 25%, 0%, 60%)`
CIE LAB	`lab(30.83, -4.35, -19.06)`
CIE LCH	`lch(30.83, 19.55, 257.13)`
CIE XYZ	`xyz(5.857, 6.579, 13.529)`
Decimal	`2640998`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #284C66, 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 #284C66	Ratio	AA	AAA	AA large
Sample text	2.32:1	Fail	Fail	Fail
Sample text	9.07:1	Pass	Pass	Pass

#284C66 as text on	Ratio	AA	AAA	AA large
Sample text	9.07:1	Pass	Pass	Pass
Sample text	2.32:1	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 #284C66 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #284c66; }
.text { color: #284c66; }
.border { border: 2px solid #284c66; }
.transparent { background-color: rgb(40 76 102 / 50%); }
.gradient { background: linear-gradient(to right, #284c66, #282d66); }

Background

Text color

Border

Similar colors

Closest common color name: Charcoal.

Questions

What color is #284C66?: #284C66 is a dark, desaturated azure, closest to the named color Seafarer. It belongs to the blue family of colors.
What is the RGB value of #284C66?: The RGB value is 40, 76, 102: 40 red, 76 green and 102 blue on a 0 to 255 scale.
What is the complementary color of #284C66?: The complementary color is #664228, found by rotating the hue 180° on the color wheel.
Is black or white text better on #284C66?: White text. Black text has a contrast ratio of 2.32:1 and white text 9.07:1. WCAG asks for at least 4.5:1 for normal text.