What color is #355B81?

#355B81 is a dark, desaturated azure, closest to the named color Mississippi River. It belongs to the blue family of colors.

What is the RGB value of #355B81?

The RGB value is 53, 91, 129: 53 red, 91 green and 129 blue on a 0 to 255 scale.

What is the complementary color of #355B81?

The complementary color is #815B35, found by rotating the hue 180° on the color wheel.

Is black or white text better on #355B81?

White text. Black text has a contrast ratio of 2.96:1 and white text 7.08:1. WCAG asks for at least 4.5:1 for normal text.

#355B81 color

#355B81 rgb(53, 91, 129)

Shades of blue

The hex color #355B81 is a dark, desaturated azure.

In the RGB color model it is made of 20.8% red, 35.7% green and 50.6% blue (53, 91, 129).

Its hue angle is 210°, with 42% saturation and 36% lightness. For print, the CMYK equivalent is 59% cyan, 29% magenta, 0% yellow and 49% black.

The closest named color is Mississippi River (#3B638C), a difference of 2.9 ΔE, a small difference.

White text is the more readable choice on this background (contrast 7.08:1).

#355B81 color codes

HEX	`#355B81`
RGB	`rgb(53, 91, 129)`
RGB percent	`rgb(20.8%, 35.7%, 50.6%)`
HSL	`hsl(210, 42%, 36%)`
HSV / HSB	`hsv(210, 59%, 51%)`
CMYK	`cmyk(59%, 29%, 0%, 49%)`
CIE LAB	`lab(37.52, -1.38, -25.39)`
CIE LCH	`lch(37.52, 25.43, 266.89)`
CIE XYZ	`xyz(9.17, 9.823, 22.177)`
Decimal	`3496833`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #355B81, 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 #355B81	Ratio	AA	AAA	AA large
Sample text	2.96:1	Fail	Fail	Fail
Sample text	7.08:1	Pass	Pass	Pass

#355B81 as text on	Ratio	AA	AAA	AA large
Sample text	7.08:1	Pass	Pass	Pass
Sample text	2.96:1	Fail	Fail	Fail

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 #355B81 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #355b81; }
.text { color: #355b81; }
.border { border: 2px solid #355b81; }
.transparent { background-color: rgb(53 91 129 / 50%); }
.gradient { background: linear-gradient(to right, #355b81, #353581); }

Background

Text color

Border

Similar colors

Closest common color name: Denim.

Questions

What color is #355B81?: #355B81 is a dark, desaturated azure, closest to the named color Mississippi River. It belongs to the blue family of colors.
What is the RGB value of #355B81?: The RGB value is 53, 91, 129: 53 red, 91 green and 129 blue on a 0 to 255 scale.
What is the complementary color of #355B81?: The complementary color is #815B35, found by rotating the hue 180° on the color wheel.
Is black or white text better on #355B81?: White text. Black text has a contrast ratio of 2.96:1 and white text 7.08:1. WCAG asks for at least 4.5:1 for normal text.