What color is #645F7A?

#645F7A is a grayish violet, closest to the named color Plummy. It belongs to the blue family of colors.

What is the RGB value of #645F7A?

The RGB value is 100, 95, 122: 100 red, 95 green and 122 blue on a 0 to 255 scale.

What is the complementary color of #645F7A?

The complementary color is #757A5F, found by rotating the hue 180° on the color wheel.

Is black or white text better on #645F7A?

White text. Black text has a contrast ratio of 3.46:1 and white text 6.07:1. WCAG asks for at least 4.5:1 for normal text.

#645F7A color

#645F7A rgb(100, 95, 122)

Shades of blue

The hex color #645F7A is a grayish violet.

In the RGB color model it is made of 39.2% red, 37.3% green and 47.8% blue (100, 95, 122).

Its hue angle is 251°, with 12% saturation and 43% lightness. For print, the CMYK equivalent is 18% cyan, 22% magenta, 0% yellow and 52% black.

The closest named color is Plummy (#675A75), a difference of 3.4 ΔE, a small difference.

White text is the more readable choice on this background (contrast 6.07:1).

#645F7A color codes

HEX	`#645F7A`
RGB	`rgb(100, 95, 122)`
RGB percent	`rgb(39.2%, 37.3%, 47.8%)`
HSL	`hsl(251, 12%, 43%)`
HSV / HSB	`hsv(251, 22%, 48%)`
CMYK	`cmyk(18%, 22%, 0%, 52%)`
CIE LAB	`lab(41.69, 8.03, -14.43)`
CIE LCH	`lch(41.69, 16.51, 299.11)`
CIE XYZ	`xyz(12.86, 12.299, 20.105)`
Decimal	`6578042`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #645F7A, 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 #645F7A	Ratio	AA	AAA	AA large
Sample text	3.46:1	Fail	Fail	Pass
Sample text	6.07:1	Pass	Fail	Pass

#645F7A as text on	Ratio	AA	AAA	AA large
Sample text	6.07:1	Pass	Fail	Pass
Sample text	3.46:1	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 #645F7A looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #645f7a; }
.text { color: #645f7a; }
.border { border: 2px solid #645f7a; }
.transparent { background-color: rgb(100 95 122 / 50%); }
.gradient { background: linear-gradient(to right, #645f7a, #725f7a); }

Background

Text color

Border

Similar colors

Closest common color name: Space Gray.

Questions

What color is #645F7A?: #645F7A is a grayish violet, closest to the named color Plummy. It belongs to the blue family of colors.
What is the RGB value of #645F7A?: The RGB value is 100, 95, 122: 100 red, 95 green and 122 blue on a 0 to 255 scale.
What is the complementary color of #645F7A?: The complementary color is #757A5F, found by rotating the hue 180° on the color wheel.
Is black or white text better on #645F7A?: White text. Black text has a contrast ratio of 3.46:1 and white text 6.07:1. WCAG asks for at least 4.5:1 for normal text.