What color is #3F4752?

#3F4752 is a dark, grayish azure, closest to the named color Starless Night. It belongs to the gray family of colors.

What is the RGB value of #3F4752?

The RGB value is 63, 71, 82: 63 red, 71 green and 82 blue on a 0 to 255 scale.

What is the complementary color of #3F4752?

The complementary color is #524A3F, found by rotating the hue 180° on the color wheel.

Is black or white text better on #3F4752?

White text. Black text has a contrast ratio of 2.23:1 and white text 9.4:1. WCAG asks for at least 4.5:1 for normal text.

#3F4752 color

#3F4752 rgb(63, 71, 82)

Shades of gray

The hex color #3F4752 is a dark, grayish azure.

In the RGB color model it is made of 24.7% red, 27.8% green and 32.2% blue (63, 71, 82).

Its hue angle is 215°, with 13% saturation and 28% lightness. For print, the CMYK equivalent is 23% cyan, 13% magenta, 0% yellow and 68% black.

The closest named color is Starless Night (#3E4855), a difference of 1.1 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 9.4:1).

#3F4752 color codes

HEX	`#3F4752`
RGB	`rgb(63, 71, 82)`
RGB percent	`rgb(24.7%, 27.8%, 32.2%)`
HSL	`hsl(215, 13%, 28%)`
HSV / HSB	`hsv(215, 23%, 32%)`
CMYK	`cmyk(23%, 13%, 0%, 68%)`
CIE LAB	`lab(29.84, -0.46, -7.65)`
CIE LCH	`lch(29.84, 7.66, 266.56)`
CIE XYZ	`xyz(5.826, 6.172, 8.865)`
Decimal	`4147026`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #3F4752, 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 #3F4752	Ratio	AA	AAA	AA large
Sample text	2.23:1	Fail	Fail	Fail
Sample text	9.4:1	Pass	Pass	Pass

#3F4752 as text on	Ratio	AA	AAA	AA large
Sample text	9.4:1	Pass	Pass	Pass
Sample text	2.23:1	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 #3F4752 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #3f4752; }
.text { color: #3f4752; }
.border { border: 2px solid #3f4752; }
.transparent { background-color: rgb(63 71 82 / 50%); }
.gradient { background: linear-gradient(to right, #3f4752, #403f52); }

Background

Text color

Border

Similar colors

Closest common color name: Charcoal.

Questions

What color is #3F4752?: #3F4752 is a dark, grayish azure, closest to the named color Starless Night. It belongs to the gray family of colors.
What is the RGB value of #3F4752?: The RGB value is 63, 71, 82: 63 red, 71 green and 82 blue on a 0 to 255 scale.
What is the complementary color of #3F4752?: The complementary color is #524A3F, found by rotating the hue 180° on the color wheel.
Is black or white text better on #3F4752?: White text. Black text has a contrast ratio of 2.23:1 and white text 9.4:1. WCAG asks for at least 4.5:1 for normal text.