What color is #3F7591?

#3F7591 is a desaturated azure, closest to the named color Harbour Blue. It belongs to the blue family of colors.

What is the RGB value of #3F7591?

The RGB value is 63, 117, 145: 63 red, 117 green and 145 blue on a 0 to 255 scale.

What is the complementary color of #3F7591?

The complementary color is #915B3F, found by rotating the hue 180° on the color wheel.

Is black or white text better on #3F7591?

White text. Black text has a contrast ratio of 4.16:1 and white text 5.04:1. WCAG asks for at least 4.5:1 for normal text.

#3F7591 color

#3F7591 rgb(63, 117, 145)

Shades of blue

The hex color #3F7591 is a desaturated azure.

In the RGB color model it is made of 24.7% red, 45.9% green and 56.9% blue (63, 117, 145).

Its hue angle is 200°, with 39% saturation and 41% lightness. For print, the CMYK equivalent is 57% cyan, 19% magenta, 0% yellow and 43% black.

The closest named color is Harbour Blue (#417491), a difference of 0.9 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 5.04:1).

#3F7591 color codes

HEX	`#3F7591`
RGB	`rgb(63, 117, 145)`
RGB percent	`rgb(24.7%, 45.9%, 56.9%)`
HSL	`hsl(200, 39%, 41%)`
HSV / HSB	`hsv(200, 57%, 57%)`
CMYK	`cmyk(57%, 19%, 0%, 43%)`
CIE LAB	`lab(46.74, -9.43, -20.69)`
CIE LCH	`lch(46.74, 22.74, 245.5)`
CIE XYZ	`xyz(13.52, 15.822, 29.124)`
Decimal	`4158865`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #3F7591, 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 #3F7591	Ratio	AA	AAA	AA large
Sample text	4.16:1	Fail	Fail	Pass
Sample text	5.04:1	Pass	Fail	Pass

#3F7591 as text on	Ratio	AA	AAA	AA large
Sample text	5.04:1	Pass	Fail	Pass
Sample text	4.16:1	Fail	Fail	Pass

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 #3F7591 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #3f7591; }
.text { color: #3f7591; }
.border { border: 2px solid #3f7591; }
.transparent { background-color: rgb(63 117 145 / 50%); }
.gradient { background: linear-gradient(to right, #3f7591, #3f4c91); }

Background

Text color

Border

Similar colors

Closest common color name: Cerulean.

Questions

What color is #3F7591?: #3F7591 is a desaturated azure, closest to the named color Harbour Blue. It belongs to the blue family of colors.
What is the RGB value of #3F7591?: The RGB value is 63, 117, 145: 63 red, 117 green and 145 blue on a 0 to 255 scale.
What is the complementary color of #3F7591?: The complementary color is #915B3F, found by rotating the hue 180° on the color wheel.
Is black or white text better on #3F7591?: White text. Black text has a contrast ratio of 4.16:1 and white text 5.04:1. WCAG asks for at least 4.5:1 for normal text.