What color is #645A56?

#645A56 is a gray, closest to the named color Bark. It belongs to the gray family of colors.

What is the RGB value of #645A56?

The RGB value is 100, 90, 86: 100 red, 90 green and 86 blue on a 0 to 255 scale.

What is the complementary color of #645A56?

The complementary color is #566064, found by rotating the hue 180° on the color wheel.

Is black or white text better on #645A56?

White text. Black text has a contrast ratio of 3.14:1 and white text 6.69:1. WCAG asks for at least 4.5:1 for normal text.

#645A56 color

#645A56 rgb(100, 90, 86)

Shades of gray

The hex color #645A56 is a gray.

In the RGB color model it is made of 39.2% red, 35.3% green and 33.7% blue (100, 90, 86).

Its hue angle is 17°, with 8% saturation and 36% lightness. For print, the CMYK equivalent is 0% cyan, 10% magenta, 14% yellow and 61% black.

The closest named color is Bark (#5F5854), a difference of 1.9 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 6.69:1).

#645A56 color codes

HEX	`#645A56`
RGB	`rgb(100, 90, 86)`
RGB percent	`rgb(39.2%, 35.3%, 33.7%)`
HSL	`hsl(17, 8%, 36%)`
HSV / HSB	`hsv(17, 14%, 39%)`
CMYK	`cmyk(0%, 10%, 14%, 61%)`
CIE LAB	`lab(39.06, 3.28, 3.78)`
CIE LCH	`lch(39.06, 5, 49.03)`
CIE XYZ	`xyz(10.591, 10.694, 10.308)`
Decimal	`6576726`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #645A56, 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 #645A56	Ratio	AA	AAA	AA large
Sample text	3.14:1	Fail	Fail	Pass
Sample text	6.69:1	Pass	Fail	Pass

#645A56 as text on	Ratio	AA	AAA	AA large
Sample text	6.69:1	Pass	Fail	Pass
Sample text	3.14:1	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 #645A56 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #645a56; }
.text { color: #645a56; }
.border { border: 2px solid #645a56; }
.transparent { background-color: rgb(100 90 86 / 50%); }
.gradient { background: linear-gradient(to right, #645a56, #646156); }

Background

Text color

Border

Similar colors

Closest common color name: Umber.

Questions

What color is #645A56?: #645A56 is a gray, closest to the named color Bark. It belongs to the gray family of colors.
What is the RGB value of #645A56?: The RGB value is 100, 90, 86: 100 red, 90 green and 86 blue on a 0 to 255 scale.
What is the complementary color of #645A56?: The complementary color is #566064, found by rotating the hue 180° on the color wheel.
Is black or white text better on #645A56?: White text. Black text has a contrast ratio of 3.14:1 and white text 6.69:1. WCAG asks for at least 4.5:1 for normal text.