What color is #646757?

#646757 is a dark, grayish yellow-green, closest to the named color Black Forest. It belongs to the gray family of colors.

What is the RGB value of #646757?

The RGB value is 100, 103, 87: 100 red, 103 green and 87 blue on a 0 to 255 scale.

What is the complementary color of #646757?

The complementary color is #5A5767, found by rotating the hue 180° on the color wheel.

Is black or white text better on #646757?

White text. Black text has a contrast ratio of 3.62:1 and white text 5.8:1. WCAG asks for at least 4.5:1 for normal text.

#646757 color

#646757 rgb(100, 103, 87)

Shades of gray

The hex color #646757 is a dark, grayish yellow-green.

In the RGB color model it is made of 39.2% red, 40.4% green and 34.1% blue (100, 103, 87).

Its hue angle is 71°, with 8% saturation and 37% lightness. For print, the CMYK equivalent is 3% cyan, 0% magenta, 16% yellow and 60% black.

The closest named color is Black Forest (#5E6354), a difference of 1.9 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 5.8:1).

#646757 color codes

HEX	`#646757`
RGB	`rgb(100, 103, 87)`
RGB percent	`rgb(39.2%, 40.4%, 34.1%)`
HSL	`hsl(71, 8%, 37%)`
HSV / HSB	`hsv(71, 16%, 40%)`
CMYK	`cmyk(3%, 0%, 16%, 60%)`
CIE LAB	`lab(42.91, -4.31, 8.65)`
CIE LCH	`lch(42.91, 9.66, 116.5)`
CIE XYZ	`xyz(11.826, 13.098, 10.92)`
Decimal	`6580055`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #646757, 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 #646757	Ratio	AA	AAA	AA large
Sample text	3.62:1	Fail	Fail	Pass
Sample text	5.8:1	Pass	Fail	Pass

#646757 as text on	Ratio	AA	AAA	AA large
Sample text	5.8:1	Pass	Fail	Pass
Sample text	3.62:1	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 #646757 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #646757; }
.text { color: #646757; }
.border { border: 2px solid #646757; }
.transparent { background-color: rgb(100 103 87 / 50%); }
.gradient { background: linear-gradient(to right, #646757, #5c6757); }

Background

Text color

Border

Similar colors

Questions

What color is #646757?: #646757 is a dark, grayish yellow-green, closest to the named color Black Forest. It belongs to the gray family of colors.
What is the RGB value of #646757?: The RGB value is 100, 103, 87: 100 red, 103 green and 87 blue on a 0 to 255 scale.
What is the complementary color of #646757?: The complementary color is #5A5767, found by rotating the hue 180° on the color wheel.
Is black or white text better on #646757?: White text. Black text has a contrast ratio of 3.62:1 and white text 5.8:1. WCAG asks for at least 4.5:1 for normal text.