What color is #647D81?

#647D81 is a grayish cyan, closest to the named color Catfish. It belongs to the gray family of colors.

What is the RGB value of #647D81?

The RGB value is 100, 125, 129: 100 red, 125 green and 129 blue on a 0 to 255 scale.

What is the complementary color of #647D81?

The complementary color is #816864, found by rotating the hue 180° on the color wheel.

Is black or white text better on #647D81?

Black text. Black text has a contrast ratio of 4.79:1 and white text 4.38:1. WCAG asks for at least 4.5:1 for normal text.

#647D81 color

#647D81 rgb(100, 125, 129)

Shades of gray

The hex color #647D81 is a grayish cyan.

In the RGB color model it is made of 39.2% red, 49% green and 50.6% blue (100, 125, 129).

Its hue angle is 188°, with 13% saturation and 45% lightness. For print, the CMYK equivalent is 22% cyan, 3% magenta, 0% yellow and 49% black.

The closest named color is Catfish (#657D82), a difference of 0.7 ΔE, which is barely visible.

Black text is the more readable choice on this background (contrast 4.79:1).

#647D81 color codes

HEX	`#647D81`
RGB	`rgb(100, 125, 129)`
RGB percent	`rgb(39.2%, 49%, 50.6%)`
HSL	`hsl(188, 13%, 45%)`
HSV / HSB	`hsv(188, 22%, 51%)`
CMYK	`cmyk(22%, 3%, 0%, 49%)`
CIE LAB	`lab(50.64, -8.04, -5.16)`
CIE LCH	`lch(50.64, 9.55, 212.68)`
CIE XYZ	`xyz(16.55, 18.961, 23.552)`
Decimal	`6585729`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #647D81, 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 #647D81	Ratio	AA	AAA	AA large
Sample text	4.79:1	Pass	Fail	Pass
Sample text	4.38:1	Fail	Fail	Pass

#647D81 as text on	Ratio	AA	AAA	AA large
Sample text	4.38:1	Fail	Fail	Pass
Sample text	4.79:1	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 #647D81 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #647d81; }
.text { color: #647d81; }
.border { border: 2px solid #647d81; }
.transparent { background-color: rgb(100 125 129 / 50%); }
.gradient { background: linear-gradient(to right, #647d81, #646e81); }

Background

Text color

Border

Similar colors

Closest common color name: Juniper.

Questions

What color is #647D81?: #647D81 is a grayish cyan, closest to the named color Catfish. It belongs to the gray family of colors.
What is the RGB value of #647D81?: The RGB value is 100, 125, 129: 100 red, 125 green and 129 blue on a 0 to 255 scale.
What is the complementary color of #647D81?: The complementary color is #816864, found by rotating the hue 180° on the color wheel.
Is black or white text better on #647D81?: Black text. Black text has a contrast ratio of 4.79:1 and white text 4.38:1. WCAG asks for at least 4.5:1 for normal text.