What color is #3F3740?

#3F3740 is a dark gray, closest to the named color Professor Plum. It belongs to the gray family of colors.

What is the RGB value of #3F3740?

The RGB value is 63, 55, 64: 63 red, 55 green and 64 blue on a 0 to 255 scale.

What is the complementary color of #3F3740?

The complementary color is #384037, found by rotating the hue 180° on the color wheel.

Is black or white text better on #3F3740?

White text. Black text has a contrast ratio of 1.83:1 and white text 11.46:1. WCAG asks for at least 4.5:1 for normal text.

#3F3740 color

#3F3740 rgb(63, 55, 64)

Shades of gray

The hex color #3F3740 is a dark gray.

In the RGB color model it is made of 24.7% red, 21.6% green and 25.1% blue (63, 55, 64).

Its hue angle is 293°, with 8% saturation and 23% lightness. For print, the CMYK equivalent is 2% cyan, 14% magenta, 0% yellow and 75% black.

The closest named color is Professor Plum (#393540), a difference of 2.4 ΔE, a small difference.

White text is the more readable choice on this background (contrast 11.46:1).

#3F3740 color codes

HEX	`#3F3740`
RGB	`rgb(63, 55, 64)`
RGB percent	`rgb(24.7%, 21.6%, 25.1%)`
HSL	`hsl(293, 8%, 23%)`
HSV / HSB	`hsv(293, 14%, 25%)`
CMYK	`cmyk(2%, 14%, 0%, 75%)`
CIE LAB	`lab(24.19, 5.49, -4.29)`
CIE LCH	`lch(24.19, 6.97, 321.99)`
CIE XYZ	`xyz(4.341, 4.159, 5.424)`
Decimal	`4142912`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #3F3740, 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 #3F3740	Ratio	AA	AAA	AA large
Sample text	1.83:1	Fail	Fail	Fail
Sample text	11.46:1	Pass	Pass	Pass

#3F3740 as text on	Ratio	AA	AAA	AA large
Sample text	11.46:1	Pass	Pass	Pass
Sample text	1.83:1	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 #3F3740 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #3f3740; }
.text { color: #3f3740; }
.border { border: 2px solid #3f3740; }
.transparent { background-color: rgb(63 55 64 / 50%); }
.gradient { background: linear-gradient(to right, #3f3740, #40373c); }

Background

Text color

Border

Similar colors

Closest common color name: Graphite.

Questions

What color is #3F3740?: #3F3740 is a dark gray, closest to the named color Professor Plum. It belongs to the gray family of colors.
What is the RGB value of #3F3740?: The RGB value is 63, 55, 64: 63 red, 55 green and 64 blue on a 0 to 255 scale.
What is the complementary color of #3F3740?: The complementary color is #384037, found by rotating the hue 180° on the color wheel.
Is black or white text better on #3F3740?: White text. Black text has a contrast ratio of 1.83:1 and white text 11.46:1. WCAG asks for at least 4.5:1 for normal text.