What color is #0000B9?

#0000B9 is a dark, vivid blue, closest to the named color Too Dark Tonight. It belongs to the blue family of colors.

What is the RGB value of #0000B9?

The RGB value is 0, 0, 185: 0 red, 0 green and 185 blue on a 0 to 255 scale.

What is the complementary color of #0000B9?

The complementary color is #B9B900, found by rotating the hue 180° on the color wheel.

Is black or white text better on #0000B9?

White text. Black text has a contrast ratio of 1.7:1 and white text 12.35:1. WCAG asks for at least 4.5:1 for normal text.

#0000B9 color

#0000B9 rgb(0, 0, 185)

Shades of blue

The hex color #0000B9 is a dark, vivid blue.

In the RGB color model it is made of 0% red, 0% green and 72.5% blue (0, 0, 185).

Its hue angle is 240°, with 100% saturation and 36% lightness. For print, the CMYK equivalent is 100% cyan, 100% magenta, 0% yellow and 27% black.

The closest named color is Too Dark Tonight (#0011BB), a difference of 1.7 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 12.35:1).

#0000B9 color codes

HEX	`#0000B9`
RGB	`rgb(0, 0, 185)`
RGB percent	`rgb(0%, 0%, 72.5%)`
HSL	`hsl(240, 100%, 36%)`
HSV / HSB	`hsv(240, 100%, 73%)`
CMYK	`cmyk(100%, 100%, 0%, 27%)`
CIE LAB	`lab(21.95, 62.22, -84.75)`
CIE LCH	`lch(21.95, 105.14, 306.28)`
CIE XYZ	`xyz(8.754, 3.502, 46.104)`
Decimal	`185`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #0000B9, 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 #0000B9	Ratio	AA	AAA	AA large
Sample text	1.7:1	Fail	Fail	Fail
Sample text	12.35:1	Pass	Pass	Pass

#0000B9 as text on	Ratio	AA	AAA	AA large
Sample text	12.35:1	Pass	Pass	Pass
Sample text	1.7:1	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 #0000B9 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #0000b9; }
.text { color: #0000b9; }
.border { border: 2px solid #0000b9; }
.transparent { background-color: rgb(0 0 185 / 50%); }
.gradient { background: linear-gradient(to right, #0000b9, #5d00b9); }

Background

Text color

Border

Similar colors

Questions

What color is #0000B9?: #0000B9 is a dark, vivid blue, closest to the named color Too Dark Tonight. It belongs to the blue family of colors.
What is the RGB value of #0000B9?: The RGB value is 0, 0, 185: 0 red, 0 green and 185 blue on a 0 to 255 scale.
What is the complementary color of #0000B9?: The complementary color is #B9B900, found by rotating the hue 180° on the color wheel.
Is black or white text better on #0000B9?: White text. Black text has a contrast ratio of 1.7:1 and white text 12.35:1. WCAG asks for at least 4.5:1 for normal text.