What color is #645A58?

#645A58 is a gray, closest to the named color Smokescreen. It belongs to the gray family of colors.

What is the RGB value of #645A58?

The RGB value is 100, 90, 88: 100 red, 90 green and 88 blue on a 0 to 255 scale.

What is the complementary color of #645A58?

The complementary color is #586264, found by rotating the hue 180° on the color wheel.

Is black or white text better on #645A58?

White text. Black text has a contrast ratio of 3.15:1 and white text 6.68:1. WCAG asks for at least 4.5:1 for normal text.

#645A58 color

#645A58 rgb(100, 90, 88)

Shades of gray

The hex color #645A58 is a gray.

In the RGB color model it is made of 39.2% red, 35.3% green and 34.5% blue (100, 90, 88).

Its hue angle is 10°, with 6% saturation and 37% lightness. For print, the CMYK equivalent is 0% cyan, 10% magenta, 12% yellow and 61% black.

The closest named color is Smokescreen (#5E5755), a difference of 2 ΔE, a small difference.

White text is the more readable choice on this background (contrast 6.68:1).

#645A58 color codes

HEX	`#645A58`
RGB	`rgb(100, 90, 88)`
RGB percent	`rgb(39.2%, 35.3%, 34.5%)`
HSL	`hsl(10, 6%, 37%)`
HSV / HSB	`hsv(10, 12%, 39%)`
CMYK	`cmyk(0%, 10%, 12%, 61%)`
CIE LAB	`lab(39.12, 3.66, 2.62)`
CIE LCH	`lch(39.12, 4.5, 35.66)`
CIE XYZ	`xyz(10.673, 10.726, 10.739)`
Decimal	`6576728`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #645A58, 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 #645A58	Ratio	AA	AAA	AA large
Sample text	3.15:1	Fail	Fail	Pass
Sample text	6.68:1	Pass	Fail	Pass

#645A58 as text on	Ratio	AA	AAA	AA large
Sample text	6.68:1	Pass	Fail	Pass
Sample text	3.15:1	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 #645A58 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #645a58; }
.text { color: #645a58; }
.border { border: 2px solid #645a58; }
.transparent { background-color: rgb(100 90 88 / 50%); }
.gradient { background: linear-gradient(to right, #645a58, #646058); }

Background

Text color

Border

Similar colors

Closest common color name: Umber.

Questions

What color is #645A58?: #645A58 is a gray, closest to the named color Smokescreen. It belongs to the gray family of colors.
What is the RGB value of #645A58?: The RGB value is 100, 90, 88: 100 red, 90 green and 88 blue on a 0 to 255 scale.
What is the complementary color of #645A58?: The complementary color is #586264, found by rotating the hue 180° on the color wheel.
Is black or white text better on #645A58?: White text. Black text has a contrast ratio of 3.15:1 and white text 6.68:1. WCAG asks for at least 4.5:1 for normal text.