What color is #00185B?

#00185B is a very dark, vivid blue, closest to the named color Interstellar Blue. It belongs to the blue family of colors.

What is the RGB value of #00185B?

The RGB value is 0, 24, 91: 0 red, 24 green and 91 blue on a 0 to 255 scale.

What is the complementary color of #00185B?

The complementary color is #5B4300, found by rotating the hue 180° on the color wheel.

Is black or white text better on #00185B?

White text. Black text has a contrast ratio of 1.28:1 and white text 16.38:1. WCAG asks for at least 4.5:1 for normal text.

#00185B color

#00185B rgb(0, 24, 91)

Shades of blue

The hex color #00185B is a very dark, vivid blue.

In the RGB color model it is made of 0% red, 9.4% green and 35.7% blue (0, 24, 91).

Its hue angle is 224°, with 100% saturation and 18% lightness. For print, the CMYK equivalent is 100% cyan, 74% magenta, 0% yellow and 64% black.

The closest named color is Interstellar Blue (#001155), a difference of 2.2 ΔE, a small difference.

White text is the more readable choice on this background (contrast 16.38:1).

#00185B color codes

HEX	`#00185B`
RGB	`rgb(0, 24, 91)`
RGB percent	`rgb(0%, 9.4%, 35.7%)`
HSL	`hsl(224, 100%, 18%)`
HSV / HSB	`hsv(224, 100%, 36%)`
CMYK	`cmyk(100%, 74%, 0%, 64%)`
CIE LAB	`lab(12.01, 22.06, -42.09)`
CIE LCH	`lch(12.01, 47.52, 297.66)`
CIE XYZ	`xyz(2.214, 1.408, 10.051)`
Decimal	`6235`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #00185B, 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 #00185B	Ratio	AA	AAA	AA large
Sample text	1.28:1	Fail	Fail	Fail
Sample text	16.38:1	Pass	Pass	Pass

#00185B as text on	Ratio	AA	AAA	AA large
Sample text	16.38:1	Pass	Pass	Pass
Sample text	1.28:1	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 #00185B looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #00185b; }
.text { color: #00185b; }
.border { border: 2px solid #00185b; }
.transparent { background-color: rgb(0 24 91 / 50%); }
.gradient { background: linear-gradient(to right, #00185b, #15005b); }

Background

Text color

Border

Similar colors

Closest common color name: Midnight Blue.

Questions

What color is #00185B?: #00185B is a very dark, vivid blue, closest to the named color Interstellar Blue. It belongs to the blue family of colors.
What is the RGB value of #00185B?: The RGB value is 0, 24, 91: 0 red, 24 green and 91 blue on a 0 to 255 scale.
What is the complementary color of #00185B?: The complementary color is #5B4300, found by rotating the hue 180° on the color wheel.
Is black or white text better on #00185B?: White text. Black text has a contrast ratio of 1.28:1 and white text 16.38:1. WCAG asks for at least 4.5:1 for normal text.