What color is #100D33?

#100D33 is a very dark, moderate blue, closest to the named color Infinite Night. It belongs to the black family of colors.

What is the RGB value of #100D33?

The RGB value is 16, 13, 51: 16 red, 13 green and 51 blue on a 0 to 255 scale.

What is the complementary color of #100D33?

The complementary color is #30330D, found by rotating the hue 180° on the color wheel.

Is black or white text better on #100D33?

White text. Black text has a contrast ratio of 1.13:1 and white text 18.63:1. WCAG asks for at least 4.5:1 for normal text.

#100D33 color

#100D33 rgb(16, 13, 51)

Shades of black

The hex color #100D33 is a very dark, moderate blue.

In the RGB color model it is made of 6.3% red, 5.1% green and 20% blue (16, 13, 51).

Its hue angle is 245°, with 59% saturation and 13% lightness. For print, the CMYK equivalent is 69% cyan, 75% magenta, 0% yellow and 80% black.

The closest named color is Infinite Night (#071037), a difference of 2.5 ΔE, a small difference.

White text is the more readable choice on this background (contrast 18.63:1).

#100D33 color codes

HEX	`#100D33`
RGB	`rgb(16, 13, 51)`
RGB percent	`rgb(6.3%, 5.1%, 20%)`
HSL	`hsl(245, 59%, 13%)`
HSV / HSB	`hsv(245, 75%, 20%)`
CMYK	`cmyk(69%, 75%, 0%, 80%)`
CIE LAB	`lab(5.75, 14.13, -24.24)`
CIE LCH	`lch(5.75, 28.05, 300.23)`
CIE XYZ	`xyz(0.955, 0.637, 3.204)`
Decimal	`1051955`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #100D33, 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 #100D33	Ratio	AA	AAA	AA large
Sample text	1.13:1	Fail	Fail	Fail
Sample text	18.63:1	Pass	Pass	Pass

#100D33 as text on	Ratio	AA	AAA	AA large
Sample text	18.63:1	Pass	Pass	Pass
Sample text	1.13:1	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 #100D33 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #100d33; }
.text { color: #100d33; }
.border { border: 2px solid #100d33; }
.transparent { background-color: rgb(16 13 51 / 50%); }
.gradient { background: linear-gradient(to right, #100d33, #230d33); }

Background

Text color

Border

Similar colors

Closest common color name: Oxford Blue.

Questions

What color is #100D33?: #100D33 is a very dark, moderate blue, closest to the named color Infinite Night. It belongs to the black family of colors.
What is the RGB value of #100D33?: The RGB value is 16, 13, 51: 16 red, 13 green and 51 blue on a 0 to 255 scale.
What is the complementary color of #100D33?: The complementary color is #30330D, found by rotating the hue 180° on the color wheel.
Is black or white text better on #100D33?: White text. Black text has a contrast ratio of 1.13:1 and white text 18.63:1. WCAG asks for at least 4.5:1 for normal text.