What color is #315B79?

#315B79 is a dark, desaturated azure, closest to the named color Nautical Creatures. It belongs to the blue family of colors.

What is the RGB value of #315B79?

The RGB value is 49, 91, 121: 49 red, 91 green and 121 blue on a 0 to 255 scale.

What is the complementary color of #315B79?

The complementary color is #794F31, found by rotating the hue 180° on the color wheel.

Is black or white text better on #315B79?

White text. Black text has a contrast ratio of 2.9:1 and white text 7.23:1. WCAG asks for at least 4.5:1 for normal text.

#315B79 color

#315B79 rgb(49, 91, 121)

Shades of blue

The hex color #315B79 is a dark, desaturated azure.

In the RGB color model it is made of 19.2% red, 35.7% green and 47.5% blue (49, 91, 121).

Its hue angle is 205°, with 42% saturation and 33% lightness. For print, the CMYK equivalent is 60% cyan, 25% magenta, 0% yellow and 53% black.

The closest named color is Nautical Creatures (#295C7A), a difference of 1.7 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 7.23:1).

#315B79 color codes

HEX	`#315B79`
RGB	`rgb(49, 91, 121)`
RGB percent	`rgb(19.2%, 35.7%, 47.5%)`
HSL	`hsl(205, 42%, 33%)`
HSV / HSB	`hsv(205, 60%, 47%)`
CMYK	`cmyk(60%, 25%, 0%, 53%)`
CIE LAB	`lab(36.96, -5.04, -21.38)`
CIE LCH	`lch(36.96, 21.97, 256.74)`
CIE XYZ	`xyz(8.458, 9.515, 19.476)`
Decimal	`3234681`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #315B79, 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 #315B79	Ratio	AA	AAA	AA large
Sample text	2.9:1	Fail	Fail	Fail
Sample text	7.23:1	Pass	Pass	Pass

#315B79 as text on	Ratio	AA	AAA	AA large
Sample text	7.23:1	Pass	Pass	Pass
Sample text	2.9:1	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 #315B79 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #315b79; }
.text { color: #315b79; }
.border { border: 2px solid #315b79; }
.transparent { background-color: rgb(49 91 121 / 50%); }
.gradient { background: linear-gradient(to right, #315b79, #313779); }

Background

Text color

Border

Similar colors

Closest common color name: Charcoal.

Questions

What color is #315B79?: #315B79 is a dark, desaturated azure, closest to the named color Nautical Creatures. It belongs to the blue family of colors.
What is the RGB value of #315B79?: The RGB value is 49, 91, 121: 49 red, 91 green and 121 blue on a 0 to 255 scale.
What is the complementary color of #315B79?: The complementary color is #794F31, found by rotating the hue 180° on the color wheel.
Is black or white text better on #315B79?: White text. Black text has a contrast ratio of 2.9:1 and white text 7.23:1. WCAG asks for at least 4.5:1 for normal text.