What color is #243C55?

#243C55 is a dark, desaturated azure, closest to the named color Nautilus. It belongs to the blue family of colors.

What is the RGB value of #243C55?

The RGB value is 36, 60, 85: 36 red, 60 green and 85 blue on a 0 to 255 scale.

What is the complementary color of #243C55?

The complementary color is #553D24, found by rotating the hue 180° on the color wheel.

Is black or white text better on #243C55?

White text. Black text has a contrast ratio of 1.85:1 and white text 11.34:1. WCAG asks for at least 4.5:1 for normal text.

#243C55 color

#243C55 rgb(36, 60, 85)

Shades of blue

The hex color #243C55 is a dark, desaturated azure.

In the RGB color model it is made of 14.1% red, 23.5% green and 33.3% blue (36, 60, 85).

Its hue angle is 211°, with 40% saturation and 24% lightness. For print, the CMYK equivalent is 58% cyan, 29% magenta, 0% yellow and 67% black.

The closest named color is Nautilus (#273C5A), a difference of 2.7 ΔE, a small difference.

White text is the more readable choice on this background (contrast 11.34:1).

#243C55 color codes

HEX	`#243C55`
RGB	`rgb(36, 60, 85)`
RGB percent	`rgb(14.1%, 23.5%, 33.3%)`
HSL	`hsl(211, 40%, 24%)`
HSV / HSB	`hsv(211, 58%, 33%)`
CMYK	`cmyk(58%, 29%, 0%, 67%)`
CIE LAB	`lab(24.52, -0.99, -17.92)`
CIE LCH	`lch(24.52, 17.94, 266.83)`
CIE XYZ	`xyz(3.983, 4.262, 9.205)`
Decimal	`2374741`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #243C55, 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 #243C55	Ratio	AA	AAA	AA large
Sample text	1.85:1	Fail	Fail	Fail
Sample text	11.34:1	Pass	Pass	Pass

#243C55 as text on	Ratio	AA	AAA	AA large
Sample text	11.34:1	Pass	Pass	Pass
Sample text	1.85:1	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 #243C55 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #243c55; }
.text { color: #243c55; }
.border { border: 2px solid #243c55; }
.transparent { background-color: rgb(36 60 85 / 50%); }
.gradient { background: linear-gradient(to right, #243c55, #242455); }

Background

Text color

Border

Similar colors

Closest common color name: Prussian Blue.

Questions

What color is #243C55?: #243C55 is a dark, desaturated azure, closest to the named color Nautilus. It belongs to the blue family of colors.
What is the RGB value of #243C55?: The RGB value is 36, 60, 85: 36 red, 60 green and 85 blue on a 0 to 255 scale.
What is the complementary color of #243C55?: The complementary color is #553D24, found by rotating the hue 180° on the color wheel.
Is black or white text better on #243C55?: White text. Black text has a contrast ratio of 1.85:1 and white text 11.34:1. WCAG asks for at least 4.5:1 for normal text.