What color is #3F5B71?

#3F5B71 is a dark, desaturated azure, closest to the named color Night Market. It belongs to the blue family of colors.

What is the RGB value of #3F5B71?

The RGB value is 63, 91, 113: 63 red, 91 green and 113 blue on a 0 to 255 scale.

What is the complementary color of #3F5B71?

The complementary color is #71553F, found by rotating the hue 180° on the color wheel.

Is black or white text better on #3F5B71?

White text. Black text has a contrast ratio of 2.95:1 and white text 7.13:1. WCAG asks for at least 4.5:1 for normal text.

#3F5B71 color

#3F5B71 rgb(63, 91, 113)

Shades of blue

The hex color #3F5B71 is a dark, desaturated azure.

In the RGB color model it is made of 24.7% red, 35.7% green and 44.3% blue (63, 91, 113).

Its hue angle is 206°, with 28% saturation and 35% lightness. For print, the CMYK equivalent is 44% cyan, 19% magenta, 0% yellow and 56% black.

The closest named color is Night Market (#4C6177), a difference of 3.4 ΔE, a small difference.

White text is the more readable choice on this background (contrast 7.13:1).

#3F5B71 color codes

HEX	`#3F5B71`
RGB	`rgb(63, 91, 113)`
RGB percent	`rgb(24.7%, 35.7%, 44.3%)`
HSL	`hsl(206, 28%, 35%)`
HSV / HSB	`hsv(206, 44%, 44%)`
CMYK	`cmyk(44%, 19%, 0%, 56%)`
CIE LAB	`lab(37.35, -4.03, -15.78)`
CIE LCH	`lch(37.35, 16.29, 255.66)`
CIE XYZ	`xyz(8.771, 9.731, 17.036)`
Decimal	`4152177`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #3F5B71, 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 #3F5B71	Ratio	AA	AAA	AA large
Sample text	2.95:1	Fail	Fail	Fail
Sample text	7.13:1	Pass	Pass	Pass

#3F5B71 as text on	Ratio	AA	AAA	AA large
Sample text	7.13:1	Pass	Pass	Pass
Sample text	2.95:1	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 #3F5B71 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #3f5b71; }
.text { color: #3f5b71; }
.border { border: 2px solid #3f5b71; }
.transparent { background-color: rgb(63 91 113 / 50%); }
.gradient { background: linear-gradient(to right, #3f5b71, #3f4271); }

Background

Text color

Border

Similar colors

Closest common color name: Charcoal.

Questions

What color is #3F5B71?: #3F5B71 is a dark, desaturated azure, closest to the named color Night Market. It belongs to the blue family of colors.
What is the RGB value of #3F5B71?: The RGB value is 63, 91, 113: 63 red, 91 green and 113 blue on a 0 to 255 scale.
What is the complementary color of #3F5B71?: The complementary color is #71553F, found by rotating the hue 180° on the color wheel.
Is black or white text better on #3F5B71?: White text. Black text has a contrast ratio of 2.95:1 and white text 7.13:1. WCAG asks for at least 4.5:1 for normal text.