What color is #555B80?

#555B80 is a grayish blue, closest to the named color Deep Indigo. It belongs to the blue family of colors.

What is the RGB value of #555B80?

The RGB value is 85, 91, 128: 85 red, 91 green and 128 blue on a 0 to 255 scale.

What is the complementary color of #555B80?

The complementary color is #807A55, found by rotating the hue 180° on the color wheel.

Is black or white text better on #555B80?

White text. Black text has a contrast ratio of 3.19:1 and white text 6.57:1. WCAG asks for at least 4.5:1 for normal text.

#555B80 color

#555B80 rgb(85, 91, 128)

Shades of blue

The hex color #555B80 is a grayish blue.

In the RGB color model it is made of 33.3% red, 35.7% green and 50.2% blue (85, 91, 128).

Its hue angle is 232°, with 20% saturation and 42% lightness. For print, the CMYK equivalent is 34% cyan, 29% magenta, 0% yellow and 50% black.

The closest named color is Deep Indigo (#4C567A), a difference of 2.5 ΔE, a small difference.

White text is the more readable choice on this background (contrast 6.57:1).

#555B80 color codes

HEX	`#555B80`
RGB	`rgb(85, 91, 128)`
RGB percent	`rgb(33.3%, 35.7%, 50.2%)`
HSL	`hsl(232, 20%, 42%)`
HSV / HSB	`hsv(232, 34%, 50%)`
CMYK	`cmyk(34%, 29%, 0%, 50%)`
CIE LAB	`lab(39.53, 7.09, -21.5)`
CIE LCH	`lch(39.53, 22.64, 288.25)`
CIE XYZ	`xyz(11.383, 10.972, 21.936)`
Decimal	`5593984`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #555B80, 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 #555B80	Ratio	AA	AAA	AA large
Sample text	3.19:1	Fail	Fail	Pass
Sample text	6.57:1	Pass	Fail	Pass

#555B80 as text on	Ratio	AA	AAA	AA large
Sample text	6.57:1	Pass	Fail	Pass
Sample text	3.19:1	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 #555B80 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #555b80; }
.text { color: #555b80; }
.border { border: 2px solid #555b80; }
.transparent { background-color: rgb(85 91 128 / 50%); }
.gradient { background: linear-gradient(to right, #555b80, #645580); }

Background

Text color

Border

Similar colors

Closest common color name: Dark Slate Blue.

Questions

What color is #555B80?: #555B80 is a grayish blue, closest to the named color Deep Indigo. It belongs to the blue family of colors.
What is the RGB value of #555B80?: The RGB value is 85, 91, 128: 85 red, 91 green and 128 blue on a 0 to 255 scale.
What is the complementary color of #555B80?: The complementary color is #807A55, found by rotating the hue 180° on the color wheel.
Is black or white text better on #555B80?: White text. Black text has a contrast ratio of 3.19:1 and white text 6.57:1. WCAG asks for at least 4.5:1 for normal text.