What color is #668C9B?

#668C9B is a grayish azure, closest to the named color Horizon. It belongs to the blue family of colors.

What is the RGB value of #668C9B?

The RGB value is 102, 140, 155: 102 red, 140 green and 155 blue on a 0 to 255 scale.

What is the complementary color of #668C9B?

The complementary color is #9B7566, found by rotating the hue 180° on the color wheel.

Is black or white text better on #668C9B?

Black text. Black text has a contrast ratio of 5.79:1 and white text 3.63:1. WCAG asks for at least 4.5:1 for normal text.

#668C9B color

#668C9B rgb(102, 140, 155)

Shades of blue

The hex color #668C9B is a grayish azure.

In the RGB color model it is made of 40% red, 54.9% green and 60.8% blue (102, 140, 155).

Its hue angle is 197°, with 21% saturation and 50% lightness. For print, the CMYK equivalent is 34% cyan, 10% magenta, 0% yellow and 39% black.

The closest named color is Horizon (#648894), a difference of 1.9 ΔE, which is barely visible.

Black text is the more readable choice on this background (contrast 5.79:1).

#668C9B color codes

HEX	`#668C9B`
RGB	`rgb(102, 140, 155)`
RGB percent	`rgb(40%, 54.9%, 60.8%)`
HSL	`hsl(197, 21%, 50%)`
HSV / HSB	`hsv(197, 34%, 61%)`
CMYK	`cmyk(34%, 10%, 0%, 39%)`
CIE LAB	`lab(56.03, -9.32, -12.19)`
CIE LCH	`lch(56.03, 15.35, 232.61)`
CIE XYZ	`xyz(20.772, 23.946, 34.532)`
Decimal	`6720667`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #668C9B, 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 #668C9B	Ratio	AA	AAA	AA large
Sample text	5.79:1	Pass	Fail	Pass
Sample text	3.63:1	Fail	Fail	Pass

#668C9B as text on	Ratio	AA	AAA	AA large
Sample text	3.63:1	Fail	Fail	Pass
Sample text	5.79:1	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 #668C9B looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #668c9b; }
.text { color: #668c9b; }
.border { border: 2px solid #668c9b; }
.transparent { background-color: rgb(102 140 155 / 50%); }
.gradient { background: linear-gradient(to right, #668c9b, #66729b); }

Background

Text color

Border

Similar colors

Closest common color name: Air Force Blue.

Questions

What color is #668C9B?: #668C9B is a grayish azure, closest to the named color Horizon. It belongs to the blue family of colors.
What is the RGB value of #668C9B?: The RGB value is 102, 140, 155: 102 red, 140 green and 155 blue on a 0 to 255 scale.
What is the complementary color of #668C9B?: The complementary color is #9B7566, found by rotating the hue 180° on the color wheel.
Is black or white text better on #668C9B?: Black text. Black text has a contrast ratio of 5.79:1 and white text 3.63:1. WCAG asks for at least 4.5:1 for normal text.