What color is #647E83?

#647E83 is a grayish cyan, closest to the named color Catfish. It belongs to the gray family of colors.

What is the RGB value of #647E83?

The RGB value is 100, 126, 131: 100 red, 126 green and 131 blue on a 0 to 255 scale.

What is the complementary color of #647E83?

The complementary color is #836964, found by rotating the hue 180° on the color wheel.

Is black or white text better on #647E83?

Black text. Black text has a contrast ratio of 4.85:1 and white text 4.33:1. WCAG asks for at least 4.5:1 for normal text.

#647E83 color

#647E83 rgb(100, 126, 131)

Shades of gray

The hex color #647E83 is a grayish cyan.

In the RGB color model it is made of 39.2% red, 49.4% green and 51.4% blue (100, 126, 131).

Its hue angle is 190°, with 13% saturation and 45% lightness. For print, the CMYK equivalent is 24% cyan, 4% 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 4.85:1).

#647E83 color codes

HEX	`#647E83`
RGB	`rgb(100, 126, 131)`
RGB percent	`rgb(39.2%, 49.4%, 51.4%)`
HSL	`hsl(190, 13%, 45%)`
HSV / HSB	`hsv(190, 24%, 51%)`
CMYK	`cmyk(24%, 4%, 0%, 49%)`
CIE LAB	`lab(51, -8.13, -5.8)`
CIE LCH	`lch(51, 9.98, 215.52)`
CIE XYZ	`xyz(16.812, 19.269, 24.302)`
Decimal	`6585987`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #647E83, 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 #647E83	Ratio	AA	AAA	AA large
Sample text	4.85:1	Pass	Fail	Pass
Sample text	4.33:1	Fail	Fail	Pass

#647E83 as text on	Ratio	AA	AAA	AA large
Sample text	4.33:1	Fail	Fail	Pass
Sample text	4.85:1	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 #647E83 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #647e83; }
.text { color: #647e83; }
.border { border: 2px solid #647e83; }
.transparent { background-color: rgb(100 126 131 / 50%); }
.gradient { background: linear-gradient(to right, #647e83, #646f83); }

Background

Text color

Border

Similar colors

Closest common color name: Slate Gray.

Questions

What color is #647E83?: #647E83 is a grayish cyan, closest to the named color Catfish. It belongs to the gray family of colors.
What is the RGB value of #647E83?: The RGB value is 100, 126, 131: 100 red, 126 green and 131 blue on a 0 to 255 scale.
What is the complementary color of #647E83?: The complementary color is #836964, found by rotating the hue 180° on the color wheel.
Is black or white text better on #647E83?: Black text. Black text has a contrast ratio of 4.85:1 and white text 4.33:1. WCAG asks for at least 4.5:1 for normal text.