What color is #3F6388?

#3F6388 is a desaturated azure, closest to the named color Mississippi River. It belongs to the blue family of colors.

What is the RGB value of #3F6388?

The RGB value is 63, 99, 136: 63 red, 99 green and 136 blue on a 0 to 255 scale.

What is the complementary color of #3F6388?

The complementary color is #88643F, found by rotating the hue 180° on the color wheel.

Is black or white text better on #3F6388?

White text. Black text has a contrast ratio of 3.35:1 and white text 6.27:1. WCAG asks for at least 4.5:1 for normal text.

#3F6388 color

#3F6388 rgb(63, 99, 136)

Shades of blue

The hex color #3F6388 is a desaturated azure.

In the RGB color model it is made of 24.7% red, 38.8% green and 53.3% blue (63, 99, 136).

Its hue angle is 210°, with 37% saturation and 39% lightness. For print, the CMYK equivalent is 54% cyan, 27% magenta, 0% yellow and 47% black.

The closest named color is Mississippi River (#3B638C), a difference of 0.9 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 6.27:1).

#3F6388 color codes

HEX	`#3F6388`
RGB	`rgb(63, 99, 136)`
RGB percent	`rgb(24.7%, 38.8%, 53.3%)`
HSL	`hsl(210, 37%, 39%)`
HSV / HSB	`hsv(210, 54%, 53%)`
CMYK	`cmyk(54%, 27%, 0%, 47%)`
CIE LAB	`lab(40.83, -1.62, -24.46)`
CIE LCH	`lch(40.83, 24.51, 266.2)`
CIE XYZ	`xyz(10.954, 11.757, 24.98)`
Decimal	`4154248`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #3F6388, 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 #3F6388	Ratio	AA	AAA	AA large
Sample text	3.35:1	Fail	Fail	Pass
Sample text	6.27:1	Pass	Fail	Pass

#3F6388 as text on	Ratio	AA	AAA	AA large
Sample text	6.27:1	Pass	Fail	Pass
Sample text	3.35:1	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 #3F6388 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #3f6388; }
.text { color: #3f6388; }
.border { border: 2px solid #3f6388; }
.transparent { background-color: rgb(63 99 136 / 50%); }
.gradient { background: linear-gradient(to right, #3f6388, #3f3f88); }

Background

Text color

Border

Similar colors

Closest common color name: Cerulean.

Questions

What color is #3F6388?: #3F6388 is a desaturated azure, closest to the named color Mississippi River. It belongs to the blue family of colors.
What is the RGB value of #3F6388?: The RGB value is 63, 99, 136: 63 red, 99 green and 136 blue on a 0 to 255 scale.
What is the complementary color of #3F6388?: The complementary color is #88643F, found by rotating the hue 180° on the color wheel.
Is black or white text better on #3F6388?: White text. Black text has a contrast ratio of 3.35:1 and white text 6.27:1. WCAG asks for at least 4.5:1 for normal text.