What color is #3F405A?

#3F405A is a dark, grayish blue, closest to the named color Genie. It belongs to the blue family of colors.

What is the RGB value of #3F405A?

The RGB value is 63, 64, 90: 63 red, 64 green and 90 blue on a 0 to 255 scale.

What is the complementary color of #3F405A?

The complementary color is #5A593F, found by rotating the hue 180° on the color wheel.

Is black or white text better on #3F405A?

White text. Black text has a contrast ratio of 2.09:1 and white text 10.04:1. WCAG asks for at least 4.5:1 for normal text.

#3F405A color

#3F405A rgb(63, 64, 90)

Shades of blue

The hex color #3F405A is a dark, grayish blue.

In the RGB color model it is made of 24.7% red, 25.1% green and 35.3% blue (63, 64, 90).

Its hue angle is 238°, with 18% saturation and 30% lightness. For print, the CMYK equivalent is 30% cyan, 29% magenta, 0% yellow and 65% black.

The closest named color is Genie (#3E4364), a difference of 2.9 ΔE, a small difference.

White text is the more readable choice on this background (contrast 10.04:1).

#3F405A color codes

HEX	`#3F405A`
RGB	`rgb(63, 64, 90)`
RGB percent	`rgb(24.7%, 25.1%, 35.3%)`
HSL	`hsl(238, 18%, 30%)`
HSV / HSB	`hsv(238, 30%, 35%)`
CMYK	`cmyk(30%, 29%, 0%, 65%)`
CIE LAB	`lab(28.01, 6.33, -15.61)`
CIE LCH	`lch(28.01, 16.84, 292.07)`
CIE XYZ	`xyz(5.728, 5.462, 10.423)`
Decimal	`4145242`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #3F405A, 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 #3F405A	Ratio	AA	AAA	AA large
Sample text	2.09:1	Fail	Fail	Fail
Sample text	10.04:1	Pass	Pass	Pass

#3F405A as text on	Ratio	AA	AAA	AA large
Sample text	10.04:1	Pass	Pass	Pass
Sample text	2.09:1	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 #3F405A looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #3f405a; }
.text { color: #3f405a; }
.border { border: 2px solid #3f405a; }
.transparent { background-color: rgb(63 64 90 / 50%); }
.gradient { background: linear-gradient(to right, #3f405a, #4c3f5a); }

Background

Text color

Border

Similar colors

Closest common color name: Charcoal.

Questions

What color is #3F405A?: #3F405A is a dark, grayish blue, closest to the named color Genie. It belongs to the blue family of colors.
What is the RGB value of #3F405A?: The RGB value is 63, 64, 90: 63 red, 64 green and 90 blue on a 0 to 255 scale.
What is the complementary color of #3F405A?: The complementary color is #5A593F, found by rotating the hue 180° on the color wheel.
Is black or white text better on #3F405A?: White text. Black text has a contrast ratio of 2.09:1 and white text 10.04:1. WCAG asks for at least 4.5:1 for normal text.