What color is #647581?

#647581 is a grayish azure, closest to the named color Night Rendezvous. It belongs to the gray family of colors.

What is the RGB value of #647581?

The RGB value is 100, 117, 129: 100 red, 117 green and 129 blue on a 0 to 255 scale.

What is the complementary color of #647581?

The complementary color is #817064, found by rotating the hue 180° on the color wheel.

Is black or white text better on #647581?

White text. Black text has a contrast ratio of 4.4:1 and white text 4.77:1. WCAG asks for at least 4.5:1 for normal text.

#647581 color

#647581 rgb(100, 117, 129)

Shades of gray

The hex color #647581 is a grayish azure.

In the RGB color model it is made of 39.2% red, 45.9% green and 50.6% blue (100, 117, 129).

Its hue angle is 205°, with 13% saturation and 45% lightness. For print, the CMYK equivalent is 22% cyan, 9% magenta, 0% yellow and 49% black.

The closest named color is Night Rendezvous (#66787E), a difference of 3.5 ΔE, a small difference.

White text is the more readable choice on this background (contrast 4.77:1).

#647581 color codes

HEX	`#647581`
RGB	`rgb(100, 117, 129)`
RGB percent	`rgb(39.2%, 45.9%, 50.6%)`
HSL	`hsl(205, 13%, 45%)`
HSV / HSB	`hsv(205, 22%, 51%)`
CMYK	`cmyk(22%, 9%, 0%, 49%)`
CIE LAB	`lab(48.28, -3.44, -8.68)`
CIE LCH	`lch(48.28, 9.33, 248.36)`
CIE XYZ	`xyz(15.578, 17.016, 23.228)`
Decimal	`6583681`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #647581, 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 #647581	Ratio	AA	AAA	AA large
Sample text	4.4:1	Fail	Fail	Pass
Sample text	4.77:1	Pass	Fail	Pass

#647581 as text on	Ratio	AA	AAA	AA large
Sample text	4.77:1	Pass	Fail	Pass
Sample text	4.4:1	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 #647581 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #647581; }
.text { color: #647581; }
.border { border: 2px solid #647581; }
.transparent { background-color: rgb(100 117 129 / 50%); }
.gradient { background: linear-gradient(to right, #647581, #646781); }

Background

Text color

Border

Similar colors

Closest common color name: Slate Gray.

Questions

What color is #647581?: #647581 is a grayish azure, closest to the named color Night Rendezvous. It belongs to the gray family of colors.
What is the RGB value of #647581?: The RGB value is 100, 117, 129: 100 red, 117 green and 129 blue on a 0 to 255 scale.
What is the complementary color of #647581?: The complementary color is #817064, found by rotating the hue 180° on the color wheel.
Is black or white text better on #647581?: White text. Black text has a contrast ratio of 4.4:1 and white text 4.77:1. WCAG asks for at least 4.5:1 for normal text.