What color is #647F7E?

#647F7E is a grayish cyan, closest to the named color Stream Burble. It belongs to the gray family of colors.

What is the RGB value of #647F7E?

The RGB value is 100, 127, 126: 100 red, 127 green and 126 blue on a 0 to 255 scale.

What is the complementary color of #647F7E?

The complementary color is #7F6465, found by rotating the hue 180° on the color wheel.

Is black or white text better on #647F7E?

Black text. Black text has a contrast ratio of 4.88:1 and white text 4.3:1. WCAG asks for at least 4.5:1 for normal text.

#647F7E color

#647F7E rgb(100, 127, 126)

Shades of gray

The hex color #647F7E is a grayish cyan.

In the RGB color model it is made of 39.2% red, 49.8% green and 49.4% blue (100, 127, 126).

Its hue angle is 178°, with 12% saturation and 45% lightness. For print, the CMYK equivalent is 21% cyan, 0% magenta, 1% yellow and 50% black.

The closest named color is Stream Burble (#5E7E7D), a difference of 1.6 ΔE, which is barely visible.

Black text is the more readable choice on this background (contrast 4.88:1).

#647F7E color codes

HEX	`#647F7E`
RGB	`rgb(100, 127, 126)`
RGB percent	`rgb(39.2%, 49.8%, 49.4%)`
HSL	`hsl(178, 12%, 45%)`
HSV / HSB	`hsv(178, 21%, 50%)`
CMYK	`cmyk(21%, 0%, 1%, 50%)`
CIE LAB	`lab(51.14, -9.88, -2.65)`
CIE LCH	`lch(51.14, 10.23, 195.04)`
CIE XYZ	`xyz(16.61, 19.394, 22.603)`
Decimal	`6586238`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #647F7E, 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 #647F7E	Ratio	AA	AAA	AA large
Sample text	4.88:1	Pass	Fail	Pass
Sample text	4.3:1	Fail	Fail	Pass

#647F7E as text on	Ratio	AA	AAA	AA large
Sample text	4.3:1	Fail	Fail	Pass
Sample text	4.88:1	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 #647F7E looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #647f7e; }
.text { color: #647f7e; }
.border { border: 2px solid #647f7e; }
.transparent { background-color: rgb(100 127 126 / 50%); }
.gradient { background: linear-gradient(to right, #647f7e, #64727f); }

Background

Text color

Border

Similar colors

Closest common color name: Smoke.

Questions

What color is #647F7E?: #647F7E is a grayish cyan, closest to the named color Stream Burble. It belongs to the gray family of colors.
What is the RGB value of #647F7E?: The RGB value is 100, 127, 126: 100 red, 127 green and 126 blue on a 0 to 255 scale.
What is the complementary color of #647F7E?: The complementary color is #7F6465, found by rotating the hue 180° on the color wheel.
Is black or white text better on #647F7E?: Black text. Black text has a contrast ratio of 4.88:1 and white text 4.3:1. WCAG asks for at least 4.5:1 for normal text.