What color is #3F447B?

#3F447B is a dark, desaturated blue, closest to the named color Queen of the Night Shift. It belongs to the blue family of colors.

What is the RGB value of #3F447B?

The RGB value is 63, 68, 123: 63 red, 68 green and 123 blue on a 0 to 255 scale.

What is the complementary color of #3F447B?

The complementary color is #7B763F, found by rotating the hue 180° on the color wheel.

Is black or white text better on #3F447B?

White text. Black text has a contrast ratio of 2.32:1 and white text 9.04:1. WCAG asks for at least 4.5:1 for normal text.

#3F447B color

#3F447B rgb(63, 68, 123)

Shades of blue

The hex color #3F447B is a dark, desaturated blue.

In the RGB color model it is made of 24.7% red, 26.7% green and 48.2% blue (63, 68, 123).

Its hue angle is 235°, with 32% saturation and 36% lightness. For print, the CMYK equivalent is 49% cyan, 45% magenta, 0% yellow and 52% black.

The closest named color is Queen of the Night Shift (#3D4585), a difference of 2.1 ΔE, a small difference.

White text is the more readable choice on this background (contrast 9.04:1).

#3F447B color codes

HEX	`#3F447B`
RGB	`rgb(63, 68, 123)`
RGB percent	`rgb(24.7%, 26.7%, 48.2%)`
HSL	`hsl(235, 32%, 36%)`
HSV / HSB	`hsv(235, 49%, 48%)`
CMYK	`cmyk(49%, 45%, 0%, 52%)`
CIE LAB	`lab(30.93, 13.99, -32.03)`
CIE LCH	`lch(30.93, 34.95, 293.6)`
CIE XYZ	`xyz(7.691, 6.621, 19.608)`
Decimal	`4146299`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #3F447B, 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 #3F447B	Ratio	AA	AAA	AA large
Sample text	2.32:1	Fail	Fail	Fail
Sample text	9.04:1	Pass	Pass	Pass

#3F447B as text on	Ratio	AA	AAA	AA large
Sample text	9.04:1	Pass	Pass	Pass
Sample text	2.32:1	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 #3F447B looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #3f447b; }
.text { color: #3f447b; }
.border { border: 2px solid #3f447b; }
.transparent { background-color: rgb(63 68 123 / 50%); }
.gradient { background: linear-gradient(to right, #3f447b, #583f7b); }

Background

Text color

Border

Similar colors

Closest common color name: Dark Slate Blue.

Questions

What color is #3F447B?: #3F447B is a dark, desaturated blue, closest to the named color Queen of the Night Shift. It belongs to the blue family of colors.
What is the RGB value of #3F447B?: The RGB value is 63, 68, 123: 63 red, 68 green and 123 blue on a 0 to 255 scale.
What is the complementary color of #3F447B?: The complementary color is #7B763F, found by rotating the hue 180° on the color wheel.
Is black or white text better on #3F447B?: White text. Black text has a contrast ratio of 2.32:1 and white text 9.04:1. WCAG asks for at least 4.5:1 for normal text.