What color is #646C5A?

#646C5A is a grayish yellow-green, closest to the named color Italian Basil. It belongs to the gray family of colors.

What is the RGB value of #646C5A?

The RGB value is 100, 108, 90: 100 red, 108 green and 90 blue on a 0 to 255 scale.

What is the complementary color of #646C5A?

The complementary color is #625A6C, found by rotating the hue 180° on the color wheel.

Is black or white text better on #646C5A?

White text. Black text has a contrast ratio of 3.83:1 and white text 5.48:1. WCAG asks for at least 4.5:1 for normal text.

#646C5A color

#646C5A rgb(100, 108, 90)

Shades of gray

The hex color #646C5A is a grayish yellow-green.

In the RGB color model it is made of 39.2% red, 42.4% green and 35.3% blue (100, 108, 90).

Its hue angle is 87°, with 9% saturation and 39% lightness. For print, the CMYK equivalent is 7% cyan, 0% magenta, 17% yellow and 58% black.

The closest named color is Italian Basil (#5F6957), a difference of 1.6 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 5.48:1).

#646C5A color codes

HEX	`#646C5A`
RGB	`rgb(100, 108, 90)`
RGB percent	`rgb(39.2%, 42.4%, 35.3%)`
HSL	`hsl(87, 9%, 39%)`
HSV / HSB	`hsv(87, 17%, 42%)`
CMYK	`cmyk(7%, 0%, 17%, 58%)`
CIE LAB	`lab(44.48, -6.67, 9.06)`
CIE LCH	`lch(44.48, 11.25, 126.36)`
CIE XYZ	`xyz(12.463, 14.173, 11.75)`
Decimal	`6581338`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #646C5A, 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 #646C5A	Ratio	AA	AAA	AA large
Sample text	3.83:1	Fail	Fail	Pass
Sample text	5.48:1	Pass	Fail	Pass

#646C5A as text on	Ratio	AA	AAA	AA large
Sample text	5.48:1	Pass	Fail	Pass
Sample text	3.83:1	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 #646C5A looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #646c5a; }
.text { color: #646c5a; }
.border { border: 2px solid #646c5a; }
.transparent { background-color: rgb(100 108 90 / 50%); }
.gradient { background: linear-gradient(to right, #646c5a, #5b6c5a); }

Background

Text color

Border

Similar colors

Questions

What color is #646C5A?: #646C5A is a grayish yellow-green, closest to the named color Italian Basil. It belongs to the gray family of colors.
What is the RGB value of #646C5A?: The RGB value is 100, 108, 90: 100 red, 108 green and 90 blue on a 0 to 255 scale.
What is the complementary color of #646C5A?: The complementary color is #625A6C, found by rotating the hue 180° on the color wheel.
Is black or white text better on #646C5A?: White text. Black text has a contrast ratio of 3.83:1 and white text 5.48:1. WCAG asks for at least 4.5:1 for normal text.