What color is #664A51?

#664A51 is a dark, grayish red, closest to the named color Plum Intended. It belongs to the red family of colors.

What is the RGB value of #664A51?

The RGB value is 102, 74, 81: 102 red, 74 green and 81 blue on a 0 to 255 scale.

What is the complementary color of #664A51?

The complementary color is #4A665F, found by rotating the hue 180° on the color wheel.

Is black or white text better on #664A51?

White text. Black text has a contrast ratio of 2.66:1 and white text 7.89:1. WCAG asks for at least 4.5:1 for normal text.

#664A51 color

#664A51 rgb(102, 74, 81)

Shades of red

The hex color #664A51 is a dark, grayish red.

In the RGB color model it is made of 40% red, 29% green and 31.8% blue (102, 74, 81).

Its hue angle is 345°, with 16% saturation and 35% lightness. For print, the CMYK equivalent is 0% cyan, 27% magenta, 21% yellow and 60% black.

The closest named color is Plum Intended (#644348), a difference of 2.9 ΔE, a small difference.

White text is the more readable choice on this background (contrast 7.89:1).

#664A51 color codes

HEX	`#664A51`
RGB	`rgb(102, 74, 81)`
RGB percent	`rgb(40%, 29%, 31.8%)`
HSL	`hsl(345, 16%, 35%)`
HSV / HSB	`hsv(345, 27%, 40%)`
CMYK	`cmyk(0%, 27%, 21%, 60%)`
CIE LAB	`lab(34.63, 13.08, 0.53)`
CIE LCH	`lch(34.63, 13.09, 2.31)`
CIE XYZ	`xyz(9.414, 8.317, 8.892)`
Decimal	`6703697`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #664A51, 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 #664A51	Ratio	AA	AAA	AA large
Sample text	2.66:1	Fail	Fail	Fail
Sample text	7.89:1	Pass	Pass	Pass

#664A51 as text on	Ratio	AA	AAA	AA large
Sample text	7.89:1	Pass	Pass	Pass
Sample text	2.66:1	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 #664A51 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #664a51; }
.text { color: #664a51; }
.border { border: 2px solid #664a51; }
.transparent { background-color: rgb(102 74 81 / 50%); }
.gradient { background: linear-gradient(to right, #664a51, #66514a); }

Background

Text color

Border

Similar colors

Questions

What color is #664A51?: #664A51 is a dark, grayish red, closest to the named color Plum Intended. It belongs to the red family of colors.
What is the RGB value of #664A51?: The RGB value is 102, 74, 81: 102 red, 74 green and 81 blue on a 0 to 255 scale.
What is the complementary color of #664A51?: The complementary color is #4A665F, found by rotating the hue 180° on the color wheel.
Is black or white text better on #664A51?: White text. Black text has a contrast ratio of 2.66:1 and white text 7.89:1. WCAG asks for at least 4.5:1 for normal text.