What color is #645B71?

#645B71 is a grayish violet, closest to the named color Plummy. It belongs to the purple family of colors.

What is the RGB value of #645B71?

The RGB value is 100, 91, 113: 100 red, 91 green and 113 blue on a 0 to 255 scale.

What is the complementary color of #645B71?

The complementary color is #68715B, found by rotating the hue 180° on the color wheel.

Is black or white text better on #645B71?

White text. Black text has a contrast ratio of 3.28:1 and white text 6.41:1. WCAG asks for at least 4.5:1 for normal text.

#645B71 color

#645B71 rgb(100, 91, 113)

Shades of purple

The hex color #645B71 is a grayish violet.

In the RGB color model it is made of 39.2% red, 35.7% green and 44.3% blue (100, 91, 113).

Its hue angle is 265°, with 11% saturation and 40% lightness. For print, the CMYK equivalent is 12% cyan, 19% magenta, 0% yellow and 56% black.

The closest named color is Plummy (#675A75), a difference of 2.4 ΔE, a small difference.

White text is the more readable choice on this background (contrast 6.41:1).

#645B71 color codes

HEX	`#645B71`
RGB	`rgb(100, 91, 113)`
RGB percent	`rgb(39.2%, 35.7%, 44.3%)`
HSL	`hsl(265, 11%, 40%)`
HSV / HSB	`hsv(265, 19%, 44%)`
CMYK	`cmyk(12%, 19%, 0%, 56%)`
CIE LAB	`lab(40.22, 8.34, -11.16)`
CIE LCH	`lch(40.22, 13.93, 306.8)`
CIE XYZ	`xyz(11.977, 11.384, 17.186)`
Decimal	`6577009`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #645B71, 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 #645B71	Ratio	AA	AAA	AA large
Sample text	3.28:1	Fail	Fail	Pass
Sample text	6.41:1	Pass	Fail	Pass

#645B71 as text on	Ratio	AA	AAA	AA large
Sample text	6.41:1	Pass	Fail	Pass
Sample text	3.28:1	Fail	Fail	Pass

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 #645B71 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #645b71; }
.text { color: #645b71; }
.border { border: 2px solid #645b71; }
.transparent { background-color: rgb(100 91 113 / 50%); }
.gradient { background: linear-gradient(to right, #645b71, #6f5b71); }

Background

Text color

Border

Similar colors

Closest common color name: Eggplant.

Questions

What color is #645B71?: #645B71 is a grayish violet, closest to the named color Plummy. It belongs to the purple family of colors.
What is the RGB value of #645B71?: The RGB value is 100, 91, 113: 100 red, 91 green and 113 blue on a 0 to 255 scale.
What is the complementary color of #645B71?: The complementary color is #68715B, found by rotating the hue 180° on the color wheel.
Is black or white text better on #645B71?: White text. Black text has a contrast ratio of 3.28:1 and white text 6.41:1. WCAG asks for at least 4.5:1 for normal text.