What color is #646A5B?

#646A5B is a gray, closest to the named color Italian Basil. It belongs to the gray family of colors.

What is the RGB value of #646A5B?

The RGB value is 100, 106, 91: 100 red, 106 green and 91 blue on a 0 to 255 scale.

What is the complementary color of #646A5B?

The complementary color is #615B6A, found by rotating the hue 180° on the color wheel.

Is black or white text better on #646A5B?

White text. Black text has a contrast ratio of 3.75:1 and white text 5.59:1. WCAG asks for at least 4.5:1 for normal text.

#646A5B color

#646A5B rgb(100, 106, 91)

Shades of gray

The hex color #646A5B is a gray.

In the RGB color model it is made of 39.2% red, 41.6% green and 35.7% blue (100, 106, 91).

Its hue angle is 84°, with 8% saturation and 39% lightness. For print, the CMYK equivalent is 6% cyan, 0% magenta, 14% yellow and 58% black.

The closest named color is Italian Basil (#5F6957), a difference of 2.4 ΔE, a small difference.

White text is the more readable choice on this background (contrast 5.59:1).

#646A5B color codes

HEX	`#646A5B`
RGB	`rgb(100, 106, 91)`
RGB percent	`rgb(39.2%, 41.6%, 35.7%)`
HSL	`hsl(84, 8%, 39%)`
HSV / HSB	`hsv(84, 14%, 42%)`
CMYK	`cmyk(6%, 0%, 14%, 58%)`
CIE LAB	`lab(43.91, -5.32, 7.65)`
CIE LCH	`lch(43.91, 9.32, 124.84)`
CIE XYZ	`xyz(12.298, 13.773, 11.906)`
Decimal	`6580827`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #646A5B, 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 #646A5B	Ratio	AA	AAA	AA large
Sample text	3.75:1	Fail	Fail	Pass
Sample text	5.59:1	Pass	Fail	Pass

#646A5B as text on	Ratio	AA	AAA	AA large
Sample text	5.59:1	Pass	Fail	Pass
Sample text	3.75:1	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 #646A5B looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #646a5b; }
.text { color: #646a5b; }
.border { border: 2px solid #646a5b; }
.transparent { background-color: rgb(100 106 91 / 50%); }
.gradient { background: linear-gradient(to right, #646a5b, #5d6a5b); }

Background

Text color

Border

Similar colors

Questions

What color is #646A5B?: #646A5B is a gray, closest to the named color Italian Basil. It belongs to the gray family of colors.
What is the RGB value of #646A5B?: The RGB value is 100, 106, 91: 100 red, 106 green and 91 blue on a 0 to 255 scale.
What is the complementary color of #646A5B?: The complementary color is #615B6A, found by rotating the hue 180° on the color wheel.
Is black or white text better on #646A5B?: White text. Black text has a contrast ratio of 3.75:1 and white text 5.59:1. WCAG asks for at least 4.5:1 for normal text.