What color is #00256B?

#00256B is a dark, vivid azure, closest to the named color Dark Sapphire. It belongs to the blue family of colors.

What is the RGB value of #00256B?

The RGB value is 0, 37, 107: 0 red, 37 green and 107 blue on a 0 to 255 scale.

What is the complementary color of #00256B?

The complementary color is #6B4600, found by rotating the hue 180° on the color wheel.

Is black or white text better on #00256B?

White text. Black text has a contrast ratio of 1.48:1 and white text 14.22:1. WCAG asks for at least 4.5:1 for normal text.

#00256B color

#00256B rgb(0, 37, 107)

Shades of blue

The hex color #00256B is a dark, vivid azure.

In the RGB color model it is made of 0% red, 14.5% green and 42% blue (0, 37, 107).

Its hue angle is 219°, with 100% saturation and 21% lightness. For print, the CMYK equivalent is 100% cyan, 65% magenta, 0% yellow and 58% black.

The closest named color is Dark Sapphire (#082567), a difference of 0.8 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 14.22:1).

#00256B color codes

HEX	`#00256B`
RGB	`rgb(0, 37, 107)`
RGB percent	`rgb(0%, 14.5%, 42%)`
HSL	`hsl(219, 100%, 21%)`
HSV / HSB	`hsv(219, 100%, 42%)`
CMYK	`cmyk(100%, 65%, 0%, 58%)`
CIE LAB	`lab(17.39, 19.45, -43.84)`
CIE LCH	`lch(17.39, 47.96, 293.92)`
CIE XYZ	`xyz(3.314, 2.384, 14.193)`
Decimal	`9579`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #00256B, 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 #00256B	Ratio	AA	AAA	AA large
Sample text	1.48:1	Fail	Fail	Fail
Sample text	14.22:1	Pass	Pass	Pass

#00256B as text on	Ratio	AA	AAA	AA large
Sample text	14.22:1	Pass	Pass	Pass
Sample text	1.48:1	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 #00256B looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #00256b; }
.text { color: #00256b; }
.border { border: 2px solid #00256b; }
.transparent { background-color: rgb(0 37 107 / 50%); }
.gradient { background: linear-gradient(to right, #00256b, #11006b); }

Background

Text color

Border

Similar colors

Closest common color name: Midnight Blue.

Questions

What color is #00256B?: #00256B is a dark, vivid azure, closest to the named color Dark Sapphire. It belongs to the blue family of colors.
What is the RGB value of #00256B?: The RGB value is 0, 37, 107: 0 red, 37 green and 107 blue on a 0 to 255 scale.
What is the complementary color of #00256B?: The complementary color is #6B4600, found by rotating the hue 180° on the color wheel.
Is black or white text better on #00256B?: White text. Black text has a contrast ratio of 1.48:1 and white text 14.22:1. WCAG asks for at least 4.5:1 for normal text.