What color is #643F45?

#643F45 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 #643F45?

The RGB value is 100, 63, 69: 100 red, 63 green and 69 blue on a 0 to 255 scale.

What is the complementary color of #643F45?

The complementary color is #3F645E, found by rotating the hue 180° on the color wheel.

Is black or white text better on #643F45?

White text. Black text has a contrast ratio of 2.34:1 and white text 8.98:1. WCAG asks for at least 4.5:1 for normal text.

#643F45 color

#643F45 rgb(100, 63, 69)

Shades of red

The hex color #643F45 is a dark, grayish red.

In the RGB color model it is made of 39.2% red, 24.7% green and 27.1% blue (100, 63, 69).

Its hue angle is 350°, with 23% saturation and 32% lightness. For print, the CMYK equivalent is 0% cyan, 37% magenta, 31% yellow and 61% black.

The closest named color is Plum Intended (#644348), a difference of 1.7 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 8.98:1).

#643F45 color codes

HEX	`#643F45`
RGB	`rgb(100, 63, 69)`
RGB percent	`rgb(39.2%, 24.7%, 27.1%)`
HSL	`hsl(350, 23%, 32%)`
HSV / HSB	`hsv(350, 37%, 39%)`
CMYK	`cmyk(0%, 37%, 31%, 61%)`
CIE LAB	`lab(31.1, 17.08, 3.07)`
CIE LCH	`lch(31.1, 17.35, 10.18)`
CIE XYZ	`xyz(8.107, 6.695, 6.494)`
Decimal	`6569797`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #643F45, 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 #643F45	Ratio	AA	AAA	AA large
Sample text	2.34:1	Fail	Fail	Fail
Sample text	8.98:1	Pass	Pass	Pass

#643F45 as text on	Ratio	AA	AAA	AA large
Sample text	8.98:1	Pass	Pass	Pass
Sample text	2.34:1	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 #643F45 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #643f45; }
.text { color: #643f45; }
.border { border: 2px solid #643f45; }
.transparent { background-color: rgb(100 63 69 / 50%); }
.gradient { background: linear-gradient(to right, #643f45, #644b3f); }

Background

Text color

Border

Similar colors

Questions

What color is #643F45?: #643F45 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 #643F45?: The RGB value is 100, 63, 69: 100 red, 63 green and 69 blue on a 0 to 255 scale.
What is the complementary color of #643F45?: The complementary color is #3F645E, found by rotating the hue 180° on the color wheel.
Is black or white text better on #643F45?: White text. Black text has a contrast ratio of 2.34:1 and white text 8.98:1. WCAG asks for at least 4.5:1 for normal text.