What color is #3F5159?

#3F5159 is a dark, grayish azure, closest to the named color Good Night!. It belongs to the gray family of colors.

What is the RGB value of #3F5159?

The RGB value is 63, 81, 89: 63 red, 81 green and 89 blue on a 0 to 255 scale.

What is the complementary color of #3F5159?

The complementary color is #59473F, found by rotating the hue 180° on the color wheel.

Is black or white text better on #3F5159?

White text. Black text has a contrast ratio of 2.53:1 and white text 8.29:1. WCAG asks for at least 4.5:1 for normal text.

#3F5159 color

#3F5159 rgb(63, 81, 89)

Shades of gray

The hex color #3F5159 is a dark, grayish azure.

In the RGB color model it is made of 24.7% red, 31.8% green and 34.9% blue (63, 81, 89).

Its hue angle is 198°, with 17% saturation and 30% lightness. For print, the CMYK equivalent is 29% cyan, 9% magenta, 0% yellow and 65% black.

The closest named color is Good Night! (#46565F), a difference of 2.2 ΔE, a small difference.

White text is the more readable choice on this background (contrast 8.29:1).

#3F5159 color codes

HEX	`#3F5159`
RGB	`rgb(63, 81, 89)`
RGB percent	`rgb(24.7%, 31.8%, 34.9%)`
HSL	`hsl(198, 17%, 30%)`
HSV / HSB	`hsv(198, 29%, 35%)`
CMYK	`cmyk(29%, 9%, 0%, 65%)`
CIE LAB	`lab(33.27, -4.85, -6.97)`
CIE LCH	`lch(33.27, 8.49, 235.14)`
CIE XYZ	`xyz(6.795, 7.663, 10.57)`
Decimal	`4149593`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #3F5159, 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 #3F5159	Ratio	AA	AAA	AA large
Sample text	2.53:1	Fail	Fail	Fail
Sample text	8.29:1	Pass	Pass	Pass

#3F5159 as text on	Ratio	AA	AAA	AA large
Sample text	8.29:1	Pass	Pass	Pass
Sample text	2.53:1	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 #3F5159 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #3f5159; }
.text { color: #3f5159; }
.border { border: 2px solid #3f5159; }
.transparent { background-color: rgb(63 81 89 / 50%); }
.gradient { background: linear-gradient(to right, #3f5159, #3f4459); }

Background

Text color

Border

Similar colors

Closest common color name: Charcoal.

Questions

What color is #3F5159?: #3F5159 is a dark, grayish azure, closest to the named color Good Night!. It belongs to the gray family of colors.
What is the RGB value of #3F5159?: The RGB value is 63, 81, 89: 63 red, 81 green and 89 blue on a 0 to 255 scale.
What is the complementary color of #3F5159?: The complementary color is #59473F, found by rotating the hue 180° on the color wheel.
Is black or white text better on #3F5159?: White text. Black text has a contrast ratio of 2.53:1 and white text 8.29:1. WCAG asks for at least 4.5:1 for normal text.