What color is #663E78?

#663E78 is a dark, desaturated magenta, closest to the named color Heartless. It belongs to the purple family of colors.

What is the RGB value of #663E78?

The RGB value is 102, 62, 120: 102 red, 62 green and 120 blue on a 0 to 255 scale.

What is the complementary color of #663E78?

The complementary color is #50783E, found by rotating the hue 180° on the color wheel.

Is black or white text better on #663E78?

White text. Black text has a contrast ratio of 2.53:1 and white text 8.32:1. WCAG asks for at least 4.5:1 for normal text.

#663E78 color

#663E78 rgb(102, 62, 120)

Shades of purple

The hex color #663E78 is a dark, desaturated magenta.

In the RGB color model it is made of 40% red, 24.3% green and 47.1% blue (102, 62, 120).

Its hue angle is 281°, with 32% saturation and 36% lightness. For print, the CMYK equivalent is 15% cyan, 48% magenta, 0% yellow and 53% black.

The closest named color is Heartless (#623B70), a difference of 1.7 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 8.32:1).

#663E78 color codes

HEX	`#663E78`
RGB	`rgb(102, 62, 120)`
RGB percent	`rgb(40%, 24.3%, 47.1%)`
HSL	`hsl(281, 32%, 36%)`
HSV / HSB	`hsv(281, 48%, 47%)`
CMYK	`cmyk(15%, 48%, 0%, 53%)`
CIE LAB	`lab(33.19, 28.57, -26.32)`
CIE LCH	`lch(33.19, 38.85, 317.36)`
CIE XYZ	`xyz(10.592, 7.626, 18.68)`
Decimal	`6700664`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #663E78, 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 #663E78	Ratio	AA	AAA	AA large
Sample text	2.53:1	Fail	Fail	Fail
Sample text	8.32:1	Pass	Pass	Pass

#663E78 as text on	Ratio	AA	AAA	AA large
Sample text	8.32:1	Pass	Pass	Pass
Sample text	2.53:1	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 #663E78 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #663e78; }
.text { color: #663e78; }
.border { border: 2px solid #663e78; }
.transparent { background-color: rgb(102 62 120 / 50%); }
.gradient { background: linear-gradient(to right, #663e78, #783e6d); }

Background

Text color

Border

Similar colors

Closest common color name: Byzantium.

Questions

What color is #663E78?: #663E78 is a dark, desaturated magenta, closest to the named color Heartless. It belongs to the purple family of colors.
What is the RGB value of #663E78?: The RGB value is 102, 62, 120: 102 red, 62 green and 120 blue on a 0 to 255 scale.
What is the complementary color of #663E78?: The complementary color is #50783E, found by rotating the hue 180° on the color wheel.
Is black or white text better on #663E78?: White text. Black text has a contrast ratio of 2.53:1 and white text 8.32:1. WCAG asks for at least 4.5:1 for normal text.