What color is #643F3D?

#643F3D is a dark, grayish red, closest to the named color Wild Thing. It belongs to the red family of colors.

What is the RGB value of #643F3D?

The RGB value is 100, 63, 61: 100 red, 63 green and 61 blue on a 0 to 255 scale.

What is the complementary color of #643F3D?

The complementary color is #3D6264, found by rotating the hue 180° on the color wheel.

Is black or white text better on #643F3D?

White text. Black text has a contrast ratio of 2.32:1 and white text 9.05:1. WCAG asks for at least 4.5:1 for normal text.

#643F3D color

#643F3D rgb(100, 63, 61)

Shades of red

The hex color #643F3D is a dark, grayish red.

In the RGB color model it is made of 39.2% red, 24.7% green and 23.9% blue (100, 63, 61).

Its hue angle is 3°, with 24% saturation and 32% lightness. For print, the CMYK equivalent is 0% cyan, 37% magenta, 39% yellow and 61% black.

The closest named color is Wild Thing (#654243), a difference of 1.9 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 9.05:1).

#643F3D color codes

HEX	`#643F3D`
RGB	`rgb(100, 63, 61)`
RGB percent	`rgb(39.2%, 24.7%, 23.9%)`
HSL	`hsl(3, 24%, 32%)`
HSV / HSB	`hsv(3, 39%, 39%)`
CMYK	`cmyk(0%, 37%, 39%, 61%)`
CIE LAB	`lab(30.88, 15.9, 7.93)`
CIE LCH	`lch(30.88, 17.77, 26.51)`
CIE XYZ	`xyz(7.876, 6.602, 5.273)`
Decimal	`6569789`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #643F3D, 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 #643F3D	Ratio	AA	AAA	AA large
Sample text	2.32:1	Fail	Fail	Fail
Sample text	9.05:1	Pass	Pass	Pass

#643F3D as text on	Ratio	AA	AAA	AA large
Sample text	9.05:1	Pass	Pass	Pass
Sample text	2.32:1	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 #643F3D looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #643f3d; }
.text { color: #643f3d; }
.border { border: 2px solid #643f3d; }
.transparent { background-color: rgb(100 63 61 / 50%); }
.gradient { background: linear-gradient(to right, #643f3d, #64533d); }

Background

Text color

Border

Similar colors

Closest common color name: Espresso.

Questions

What color is #643F3D?: #643F3D is a dark, grayish red, closest to the named color Wild Thing. It belongs to the red family of colors.
What is the RGB value of #643F3D?: The RGB value is 100, 63, 61: 100 red, 63 green and 61 blue on a 0 to 255 scale.
What is the complementary color of #643F3D?: The complementary color is #3D6264, found by rotating the hue 180° on the color wheel.
Is black or white text better on #643F3D?: White text. Black text has a contrast ratio of 2.32:1 and white text 9.05:1. WCAG asks for at least 4.5:1 for normal text.