What color is #3F4F50?

#3F4F50 is a dark, grayish cyan, closest to the named color All Nighter. It belongs to the gray family of colors.

What is the RGB value of #3F4F50?

The RGB value is 63, 79, 80: 63 red, 79 green and 80 blue on a 0 to 255 scale.

What is the complementary color of #3F4F50?

The complementary color is #50403F, found by rotating the hue 180° on the color wheel.

Is black or white text better on #3F4F50?

White text. Black text has a contrast ratio of 2.45:1 and white text 8.59:1. WCAG asks for at least 4.5:1 for normal text.

#3F4F50 color

#3F4F50 rgb(63, 79, 80)

Shades of gray

The hex color #3F4F50 is a dark, grayish cyan.

In the RGB color model it is made of 24.7% red, 31% green and 31.4% blue (63, 79, 80).

Its hue angle is 184°, with 12% saturation and 28% lightness. For print, the CMYK equivalent is 21% cyan, 1% magenta, 0% yellow and 69% black.

The closest named color is All Nighter (#455454), a difference of 1.9 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 8.59:1).

#3F4F50 color codes

HEX	`#3F4F50`
RGB	`rgb(63, 79, 80)`
RGB percent	`rgb(24.7%, 31%, 31.4%)`
HSL	`hsl(184, 12%, 28%)`
HSV / HSB	`hsv(184, 21%, 31%)`
CMYK	`cmyk(21%, 1%, 0%, 69%)`
CIE LAB	`lab(32.32, -5.99, -2.67)`
CIE LCH	`lch(32.32, 6.56, 204.02)`
CIE XYZ	`xyz(6.293, 7.228, 8.651)`
Decimal	`4149072`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #3F4F50, 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 #3F4F50	Ratio	AA	AAA	AA large
Sample text	2.45:1	Fail	Fail	Fail
Sample text	8.59:1	Pass	Pass	Pass

#3F4F50 as text on	Ratio	AA	AAA	AA large
Sample text	8.59:1	Pass	Pass	Pass
Sample text	2.45:1	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 #3F4F50 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #3f4f50; }
.text { color: #3f4f50; }
.border { border: 2px solid #3f4f50; }
.transparent { background-color: rgb(63 79 80 / 50%); }
.gradient { background: linear-gradient(to right, #3f4f50, #3f4750); }

Background

Text color

Border

Similar colors

Closest common color name: Dark Slate Gray.

Questions

What color is #3F4F50?: #3F4F50 is a dark, grayish cyan, closest to the named color All Nighter. It belongs to the gray family of colors.
What is the RGB value of #3F4F50?: The RGB value is 63, 79, 80: 63 red, 79 green and 80 blue on a 0 to 255 scale.
What is the complementary color of #3F4F50?: The complementary color is #50403F, found by rotating the hue 180° on the color wheel.
Is black or white text better on #3F4F50?: White text. Black text has a contrast ratio of 2.45:1 and white text 8.59:1. WCAG asks for at least 4.5:1 for normal text.