What color is #233C51?

#233C51 is a dark, desaturated azure, closest to the named color One Year of Rain. It belongs to the blue family of colors.

What is the RGB value of #233C51?

The RGB value is 35, 60, 81: 35 red, 60 green and 81 blue on a 0 to 255 scale.

What is the complementary color of #233C51?

The complementary color is #513823, found by rotating the hue 180° on the color wheel.

Is black or white text better on #233C51?

White text. Black text has a contrast ratio of 1.84:1 and white text 11.43:1. WCAG asks for at least 4.5:1 for normal text.

#233C51 color

#233C51 rgb(35, 60, 81)

Shades of blue

The hex color #233C51 is a dark, desaturated azure.

In the RGB color model it is made of 13.7% red, 23.5% green and 31.8% blue (35, 60, 81).

Its hue angle is 207°, with 40% saturation and 23% lightness. For print, the CMYK equivalent is 57% cyan, 26% magenta, 0% yellow and 68% black.

The closest named color is One Year of Rain (#29465B), a difference of 3.4 ΔE, a small difference.

White text is the more readable choice on this background (contrast 11.43:1).

#233C51 color codes

HEX	`#233C51`
RGB	`rgb(35, 60, 81)`
RGB percent	`rgb(13.7%, 23.5%, 31.8%)`
HSL	`hsl(207, 40%, 23%)`
HSV / HSB	`hsv(207, 57%, 32%)`
CMYK	`cmyk(57%, 26%, 0%, 68%)`
CIE LAB	`lab(24.27, -2.69, -15.68)`
CIE LCH	`lch(24.27, 15.91, 260.27)`
CIE XYZ	`xyz(3.794, 4.183, 8.39)`
Decimal	`2309201`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #233C51, 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 #233C51	Ratio	AA	AAA	AA large
Sample text	1.84:1	Fail	Fail	Fail
Sample text	11.43:1	Pass	Pass	Pass

#233C51 as text on	Ratio	AA	AAA	AA large
Sample text	11.43:1	Pass	Pass	Pass
Sample text	1.84:1	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 #233C51 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #233c51; }
.text { color: #233c51; }
.border { border: 2px solid #233c51; }
.transparent { background-color: rgb(35 60 81 / 50%); }
.gradient { background: linear-gradient(to right, #233c51, #232551); }

Background

Text color

Border

Similar colors

Closest common color name: Prussian Blue.

Questions

What color is #233C51?: #233C51 is a dark, desaturated azure, closest to the named color One Year of Rain. It belongs to the blue family of colors.
What is the RGB value of #233C51?: The RGB value is 35, 60, 81: 35 red, 60 green and 81 blue on a 0 to 255 scale.
What is the complementary color of #233C51?: The complementary color is #513823, found by rotating the hue 180° on the color wheel.
Is black or white text better on #233C51?: White text. Black text has a contrast ratio of 1.84:1 and white text 11.43:1. WCAG asks for at least 4.5:1 for normal text.