What color is #003E66?

#003E66 is a dark, vivid azure, closest to the named color Poseidon. It belongs to the blue family of colors.

What is the RGB value of #003E66?

The RGB value is 0, 62, 102: 0 red, 62 green and 102 blue on a 0 to 255 scale.

What is the complementary color of #003E66?

The complementary color is #662800, found by rotating the hue 180° on the color wheel.

Is black or white text better on #003E66?

White text. Black text has a contrast ratio of 1.88:1 and white text 11.16:1. WCAG asks for at least 4.5:1 for normal text.

#003E66 color

#003E66 rgb(0, 62, 102)

Shades of blue

The hex color #003E66 is a dark, vivid azure.

In the RGB color model it is made of 0% red, 24.3% green and 40% blue (0, 62, 102).

Its hue angle is 204°, with 100% saturation and 20% lightness. For print, the CMYK equivalent is 100% cyan, 39% magenta, 0% yellow and 60% black.

The closest named color is Poseidon (#143C5D), a difference of 2 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 11.16:1).

#003E66 color codes

HEX	`#003E66`
RGB	`rgb(0, 62, 102)`
RGB percent	`rgb(0%, 24.3%, 40%)`
HSL	`hsl(204, 100%, 20%)`
HSV / HSB	`hsv(204, 100%, 40%)`
CMYK	`cmyk(100%, 39%, 0%, 60%)`
CIE LAB	`lab(24.96, -0.93, -28.36)`
CIE LCH	`lch(24.96, 28.37, 268.12)`
CIE XYZ	`xyz(4.12, 4.404, 13.201)`
Decimal	`15974`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #003E66, 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 #003E66	Ratio	AA	AAA	AA large
Sample text	1.88:1	Fail	Fail	Fail
Sample text	11.16:1	Pass	Pass	Pass

#003E66 as text on	Ratio	AA	AAA	AA large
Sample text	11.16:1	Pass	Pass	Pass
Sample text	1.88:1	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 #003E66 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #003e66; }
.text { color: #003e66; }
.border { border: 2px solid #003e66; }
.transparent { background-color: rgb(0 62 102 / 50%); }
.gradient { background: linear-gradient(to right, #003e66, #000b66); }

Background

Text color

Border

Similar colors

Questions

What color is #003E66?: #003E66 is a dark, vivid azure, closest to the named color Poseidon. It belongs to the blue family of colors.
What is the RGB value of #003E66?: The RGB value is 0, 62, 102: 0 red, 62 green and 102 blue on a 0 to 255 scale.
What is the complementary color of #003E66?: The complementary color is #662800, found by rotating the hue 180° on the color wheel.
Is black or white text better on #003E66?: White text. Black text has a contrast ratio of 1.88:1 and white text 11.16:1. WCAG asks for at least 4.5:1 for normal text.