What color is #645D56?

#645D56 is a gray, closest to the named color Caveman. It belongs to the gray family of colors.

What is the RGB value of #645D56?

The RGB value is 100, 93, 86: 100 red, 93 green and 86 blue on a 0 to 255 scale.

What is the complementary color of #645D56?

The complementary color is #565D64, found by rotating the hue 180° on the color wheel.

Is black or white text better on #645D56?

White text. Black text has a contrast ratio of 3.24:1 and white text 6.48:1. WCAG asks for at least 4.5:1 for normal text.

#645D56 color

#645D56 rgb(100, 93, 86)

Shades of gray

The hex color #645D56 is a gray.

In the RGB color model it is made of 39.2% red, 36.5% green and 33.7% blue (100, 93, 86).

Its hue angle is 30°, with 8% saturation and 36% lightness. For print, the CMYK equivalent is 0% cyan, 7% magenta, 14% yellow and 61% black.

The closest named color is Caveman (#625C58), a difference of 1.7 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 6.48:1).

#645D56 color codes

HEX	`#645D56`
RGB	`rgb(100, 93, 86)`
RGB percent	`rgb(39.2%, 36.5%, 33.7%)`
HSL	`hsl(30, 8%, 36%)`
HSV / HSB	`hsv(30, 14%, 39%)`
CMYK	`cmyk(0%, 7%, 14%, 61%)`
CIE LAB	`lab(39.93, 1.46, 5.03)`
CIE LCH	`lch(39.93, 5.24, 73.82)`
CIE XYZ	`xyz(10.849, 11.21, 10.395)`
Decimal	`6577494`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #645D56, 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 #645D56	Ratio	AA	AAA	AA large
Sample text	3.24:1	Fail	Fail	Pass
Sample text	6.48:1	Pass	Fail	Pass

#645D56 as text on	Ratio	AA	AAA	AA large
Sample text	6.48:1	Pass	Fail	Pass
Sample text	3.24:1	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 #645D56 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #645d56; }
.text { color: #645d56; }
.border { border: 2px solid #645d56; }
.transparent { background-color: rgb(100 93 86 / 50%); }
.gradient { background: linear-gradient(to right, #645d56, #646456); }

Background

Text color

Border

Similar colors

Closest common color name: Dim Gray.

Questions

What color is #645D56?: #645D56 is a gray, closest to the named color Caveman. It belongs to the gray family of colors.
What is the RGB value of #645D56?: The RGB value is 100, 93, 86: 100 red, 93 green and 86 blue on a 0 to 255 scale.
What is the complementary color of #645D56?: The complementary color is #565D64, found by rotating the hue 180° on the color wheel.
Is black or white text better on #645D56?: White text. Black text has a contrast ratio of 3.24:1 and white text 6.48:1. WCAG asks for at least 4.5:1 for normal text.