What color is #403C66?

#403C66 is a dark, desaturated blue, closest to the named color Storm Is Coming. It belongs to the blue family of colors.

What is the RGB value of #403C66?

The RGB value is 64, 60, 102: 64 red, 60 green and 102 blue on a 0 to 255 scale.

What is the complementary color of #403C66?

The complementary color is #62663C, found by rotating the hue 180° on the color wheel.

Is black or white text better on #403C66?

White text. Black text has a contrast ratio of 2.06:1 and white text 10.21:1. WCAG asks for at least 4.5:1 for normal text.

#403C66 color

#403C66 rgb(64, 60, 102)

Shades of blue

The hex color #403C66 is a dark, desaturated blue.

In the RGB color model it is made of 25.1% red, 23.5% green and 40% blue (64, 60, 102).

Its hue angle is 246°, with 26% saturation and 32% lightness. For print, the CMYK equivalent is 37% cyan, 41% magenta, 0% yellow and 60% black.

The closest named color is Storm Is Coming (#3D3D63), a difference of 1.6 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 10.21:1).

#403C66 color codes

HEX	`#403C66`
RGB	`rgb(64, 60, 102)`
RGB percent	`rgb(25.1%, 23.5%, 40%)`
HSL	`hsl(246, 26%, 32%)`
HSV / HSB	`hsv(246, 41%, 40%)`
CMYK	`cmyk(37%, 41%, 0%, 60%)`
CIE LAB	`lab(27.52, 12.9, -24.11)`
CIE LCH	`lch(27.52, 27.35, 298.15)`
CIE XYZ	`xyz(6.128, 5.281, 13.264)`
Decimal	`4209766`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #403C66, 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 #403C66	Ratio	AA	AAA	AA large
Sample text	2.06:1	Fail	Fail	Fail
Sample text	10.21:1	Pass	Pass	Pass

#403C66 as text on	Ratio	AA	AAA	AA large
Sample text	10.21:1	Pass	Pass	Pass
Sample text	2.06:1	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 #403C66 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #403c66; }
.text { color: #403c66; }
.border { border: 2px solid #403c66; }
.transparent { background-color: rgb(64 60 102 / 50%); }
.gradient { background: linear-gradient(to right, #403c66, #553c66); }

Background

Text color

Border

Similar colors

Closest common color name: Dark Slate Blue.

Questions

What color is #403C66?: #403C66 is a dark, desaturated blue, closest to the named color Storm Is Coming. It belongs to the blue family of colors.
What is the RGB value of #403C66?: The RGB value is 64, 60, 102: 64 red, 60 green and 102 blue on a 0 to 255 scale.
What is the complementary color of #403C66?: The complementary color is #62663C, found by rotating the hue 180° on the color wheel.
Is black or white text better on #403C66?: White text. Black text has a contrast ratio of 2.06:1 and white text 10.21:1. WCAG asks for at least 4.5:1 for normal text.