What color is #1F1F55?

#1F1F55 is a dark, desaturated blue, closest to the named color Spacescape. It belongs to the blue family of colors.

What is the RGB value of #1F1F55?

The RGB value is 31, 31, 85: 31 red, 31 green and 85 blue on a 0 to 255 scale.

What is the complementary color of #1F1F55?

The complementary color is #55551F, found by rotating the hue 180° on the color wheel.

Is black or white text better on #1F1F55?

White text. Black text has a contrast ratio of 1.39:1 and white text 15.16:1. WCAG asks for at least 4.5:1 for normal text.

#1F1F55 color

#1F1F55 rgb(31, 31, 85)

Shades of blue

The hex color #1F1F55 is a dark, desaturated blue.

In the RGB color model it is made of 12.2% red, 12.2% green and 33.3% blue (31, 31, 85).

Its hue angle is 240°, with 47% saturation and 23% lightness. For print, the CMYK equivalent is 64% cyan, 64% magenta, 0% yellow and 67% black.

The closest named color is Spacescape (#222255), a difference of 1.1 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 15.16:1).

#1F1F55 color codes

HEX	`#1F1F55`
RGB	`rgb(31, 31, 85)`
RGB percent	`rgb(12.2%, 12.2%, 33.3%)`
HSL	`hsl(240, 47%, 23%)`
HSV / HSB	`hsv(240, 64%, 33%)`
CMYK	`cmyk(64%, 64%, 0%, 67%)`
CIE LAB	`lab(15.1, 18.4, -32.93)`
CIE LCH	`lch(15.1, 37.72, 299.2)`
CIE XYZ	`xyz(2.694, 1.927, 8.823)`
Decimal	`2039637`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #1F1F55, 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 #1F1F55	Ratio	AA	AAA	AA large
Sample text	1.39:1	Fail	Fail	Fail
Sample text	15.16:1	Pass	Pass	Pass

#1F1F55 as text on	Ratio	AA	AAA	AA large
Sample text	15.16:1	Pass	Pass	Pass
Sample text	1.39:1	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 #1F1F55 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #1f1f55; }
.text { color: #1f1f55; }
.border { border: 2px solid #1f1f55; }
.transparent { background-color: rgb(31 31 85 / 50%); }
.gradient { background: linear-gradient(to right, #1f1f55, #3a1f55); }

Background

Text color

Border

Similar colors

Closest common color name: Midnight Blue.

Questions

What color is #1F1F55?: #1F1F55 is a dark, desaturated blue, closest to the named color Spacescape. It belongs to the blue family of colors.
What is the RGB value of #1F1F55?: The RGB value is 31, 31, 85: 31 red, 31 green and 85 blue on a 0 to 255 scale.
What is the complementary color of #1F1F55?: The complementary color is #55551F, found by rotating the hue 180° on the color wheel.
Is black or white text better on #1F1F55?: White text. Black text has a contrast ratio of 1.39:1 and white text 15.16:1. WCAG asks for at least 4.5:1 for normal text.