What color is #647E81?

#647E81 is a grayish cyan, closest to the named color Catfish. It belongs to the gray family of colors.

What is the RGB value of #647E81?

The RGB value is 100, 126, 129: 100 red, 126 green and 129 blue on a 0 to 255 scale.

What is the complementary color of #647E81?

The complementary color is #816764, found by rotating the hue 180° on the color wheel.

Is black or white text better on #647E81?

Black text. Black text has a contrast ratio of 4.84:1 and white text 4.34:1. WCAG asks for at least 4.5:1 for normal text.

#647E81 color

#647E81 rgb(100, 126, 129)

Shades of gray

The hex color #647E81 is a grayish cyan.

In the RGB color model it is made of 39.2% red, 49.4% green and 50.6% blue (100, 126, 129).

Its hue angle is 186°, with 13% saturation and 45% lightness. For print, the CMYK equivalent is 22% cyan, 2% magenta, 0% yellow and 49% black.

The closest named color is Catfish (#657D82), a difference of 1.4 ΔE, which is barely visible.

Black text is the more readable choice on this background (contrast 4.84:1).

#647E81 color codes

HEX	`#647E81`
RGB	`rgb(100, 126, 129)`
RGB percent	`rgb(39.2%, 49.4%, 50.6%)`
HSL	`hsl(186, 13%, 45%)`
HSV / HSB	`hsv(186, 22%, 51%)`
CMYK	`cmyk(22%, 2%, 0%, 49%)`
CIE LAB	`lab(50.94, -8.61, -4.72)`
CIE LCH	`lch(50.94, 9.81, 208.74)`
CIE XYZ	`xyz(16.678, 19.215, 23.595)`
Decimal	`6585985`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #647E81, 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 #647E81	Ratio	AA	AAA	AA large
Sample text	4.84:1	Pass	Fail	Pass
Sample text	4.34:1	Fail	Fail	Pass

#647E81 as text on	Ratio	AA	AAA	AA large
Sample text	4.34:1	Fail	Fail	Pass
Sample text	4.84:1	Pass	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 #647E81 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #647e81; }
.text { color: #647e81; }
.border { border: 2px solid #647e81; }
.transparent { background-color: rgb(100 126 129 / 50%); }
.gradient { background: linear-gradient(to right, #647e81, #647081); }

Background

Text color

Border

Similar colors

Closest common color name: Juniper.

Questions

What color is #647E81?: #647E81 is a grayish cyan, closest to the named color Catfish. It belongs to the gray family of colors.
What is the RGB value of #647E81?: The RGB value is 100, 126, 129: 100 red, 126 green and 129 blue on a 0 to 255 scale.
What is the complementary color of #647E81?: The complementary color is #816764, found by rotating the hue 180° on the color wheel.
Is black or white text better on #647E81?: Black text. Black text has a contrast ratio of 4.84:1 and white text 4.34:1. WCAG asks for at least 4.5:1 for normal text.