What color is #1F3039?

#1F3039 is a very dark, desaturated azure, closest to the named color Petrol Slumber. It belongs to the black family of colors.

What is the RGB value of #1F3039?

The RGB value is 31, 48, 57: 31 red, 48 green and 57 blue on a 0 to 255 scale.

What is the complementary color of #1F3039?

The complementary color is #39281F, found by rotating the hue 180° on the color wheel.

Is black or white text better on #1F3039?

White text. Black text has a contrast ratio of 1.54:1 and white text 13.64:1. WCAG asks for at least 4.5:1 for normal text.

#1F3039 color

#1F3039 rgb(31, 48, 57)

Shades of black

The hex color #1F3039 is a very dark, desaturated azure.

In the RGB color model it is made of 12.2% red, 18.8% green and 22.4% blue (31, 48, 57).

Its hue angle is 201°, with 30% saturation and 17% lightness. For print, the CMYK equivalent is 46% cyan, 16% magenta, 0% yellow and 78% black.

The closest named color is Petrol Slumber (#243640), a difference of 1.9 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 13.64:1).

#1F3039 color codes

HEX	`#1F3039`
RGB	`rgb(31, 48, 57)`
RGB percent	`rgb(12.2%, 18.8%, 22.4%)`
HSL	`hsl(201, 30%, 17%)`
HSV / HSB	`hsv(201, 46%, 22%)`
CMYK	`cmyk(46%, 16%, 0%, 78%)`
CIE LAB	`lab(18.8, -4.13, -7.93)`
CIE LCH	`lch(18.8, 8.94, 242.46)`
CIE XYZ	`xyz(2.36, 2.7, 4.267)`
Decimal	`2043961`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #1F3039, 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 #1F3039	Ratio	AA	AAA	AA large
Sample text	1.54:1	Fail	Fail	Fail
Sample text	13.64:1	Pass	Pass	Pass

#1F3039 as text on	Ratio	AA	AAA	AA large
Sample text	13.64:1	Pass	Pass	Pass
Sample text	1.54:1	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 #1F3039 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #1f3039; }
.text { color: #1f3039; }
.border { border: 2px solid #1f3039; }
.transparent { background-color: rgb(31 48 57 / 50%); }
.gradient { background: linear-gradient(to right, #1f3039, #1f2339); }

Background

Text color

Border

Similar colors

Questions

What color is #1F3039?: #1F3039 is a very dark, desaturated azure, closest to the named color Petrol Slumber. It belongs to the black family of colors.
What is the RGB value of #1F3039?: The RGB value is 31, 48, 57: 31 red, 48 green and 57 blue on a 0 to 255 scale.
What is the complementary color of #1F3039?: The complementary color is #39281F, found by rotating the hue 180° on the color wheel.
Is black or white text better on #1F3039?: White text. Black text has a contrast ratio of 1.54:1 and white text 13.64:1. WCAG asks for at least 4.5:1 for normal text.