What color is #818FA3?

#818FA3 is a grayish azure, closest to the named color Light Slate Gray. It belongs to the gray family of colors.

What is the RGB value of #818FA3?

The RGB value is 129, 143, 163: 129 red, 143 green and 163 blue on a 0 to 255 scale.

What is the complementary color of #818FA3?

The complementary color is #A39581, found by rotating the hue 180° on the color wheel.

Is black or white text better on #818FA3?

Black text. Black text has a contrast ratio of 6.39:1 and white text 3.29:1. WCAG asks for at least 4.5:1 for normal text.

#818FA3 color

#818FA3 rgb(129, 143, 163)

Shades of gray

The hex color #818FA3 is a grayish azure.

In the RGB color model it is made of 50.6% red, 56.1% green and 63.9% blue (129, 143, 163).

Its hue angle is 215°, with 16% saturation and 57% lightness. For print, the CMYK equivalent is 21% cyan, 12% magenta, 0% yellow and 36% black.

The closest named color is Light Slate Gray (#778899), a difference of 3.5 ΔE, a small difference.

Black text is the more readable choice on this background (contrast 6.39:1).

#818FA3 color codes

HEX	`#818FA3`
RGB	`rgb(129, 143, 163)`
RGB percent	`rgb(50.6%, 56.1%, 63.9%)`
HSL	`hsl(215, 16%, 57%)`
HSV / HSB	`hsv(215, 21%, 64%)`
CMYK	`cmyk(21%, 12%, 0%, 36%)`
CIE LAB	`lab(58.93, -0.57, -12.24)`
CIE LCH	`lch(58.93, 12.25, 267.33)`
CIE XYZ	`xyz(25.485, 26.956, 38.503)`
Decimal	`8490915`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #818FA3, 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 #818FA3	Ratio	AA	AAA	AA large
Sample text	6.39:1	Pass	Fail	Pass
Sample text	3.29:1	Fail	Fail	Pass

#818FA3 as text on	Ratio	AA	AAA	AA large
Sample text	3.29:1	Fail	Fail	Pass
Sample text	6.39:1	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 #818FA3 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #818fa3; }
.text { color: #818fa3; }
.border { border: 2px solid #818fa3; }
.transparent { background-color: rgb(129 143 163 / 50%); }
.gradient { background: linear-gradient(to right, #818fa3, #8481a3); }

Background

Text color

Border

Similar colors

Questions

What color is #818FA3?: #818FA3 is a grayish azure, closest to the named color Light Slate Gray. It belongs to the gray family of colors.
What is the RGB value of #818FA3?: The RGB value is 129, 143, 163: 129 red, 143 green and 163 blue on a 0 to 255 scale.
What is the complementary color of #818FA3?: The complementary color is #A39581, found by rotating the hue 180° on the color wheel.
Is black or white text better on #818FA3?: Black text. Black text has a contrast ratio of 6.39:1 and white text 3.29:1. WCAG asks for at least 4.5:1 for normal text.