What color is #183C6E?

#183C6E is a dark, moderate azure, closest to the named color Aegean Blue. It belongs to the blue family of colors.

What is the RGB value of #183C6E?

The RGB value is 24, 60, 110: 24 red, 60 green and 110 blue on a 0 to 255 scale.

What is the complementary color of #183C6E?

The complementary color is #6E4A18, found by rotating the hue 180° on the color wheel.

Is black or white text better on #183C6E?

White text. Black text has a contrast ratio of 1.91:1 and white text 10.99:1. WCAG asks for at least 4.5:1 for normal text.

#183C6E color

#183C6E rgb(24, 60, 110)

Shades of blue

The hex color #183C6E is a dark, moderate azure.

In the RGB color model it is made of 9.4% red, 23.5% green and 43.1% blue (24, 60, 110).

Its hue angle is 215°, with 64% saturation and 26% lightness. For print, the CMYK equivalent is 78% cyan, 45% magenta, 0% yellow and 57% black.

The closest named color is Aegean Blue (#1B416F), a difference of 1.8 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 10.99:1).

#183C6E color codes

HEX	`#183C6E`
RGB	`rgb(24, 60, 110)`
RGB percent	`rgb(9.4%, 23.5%, 43.1%)`
HSL	`hsl(215, 64%, 26%)`
HSV / HSB	`hsv(215, 78%, 43%)`
CMYK	`cmyk(78%, 45%, 0%, 57%)`
CIE LAB	`lab(25.42, 6.38, -32.74)`
CIE LCH	`lch(25.42, 33.35, 281.02)`
CIE XYZ	`xyz(4.806, 4.551, 15.374)`
Decimal	`1588334`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #183C6E, 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 #183C6E	Ratio	AA	AAA	AA large
Sample text	1.91:1	Fail	Fail	Fail
Sample text	10.99:1	Pass	Pass	Pass

#183C6E as text on	Ratio	AA	AAA	AA large
Sample text	10.99:1	Pass	Pass	Pass
Sample text	1.91:1	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 #183C6E looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #183c6e; }
.text { color: #183c6e; }
.border { border: 2px solid #183c6e; }
.transparent { background-color: rgb(24 60 110 / 50%); }
.gradient { background: linear-gradient(to right, #183c6e, #1f186e); }

Background

Text color

Border

Similar colors

Closest common color name: Prussian Blue.

Questions

What color is #183C6E?: #183C6E is a dark, moderate azure, closest to the named color Aegean Blue. It belongs to the blue family of colors.
What is the RGB value of #183C6E?: The RGB value is 24, 60, 110: 24 red, 60 green and 110 blue on a 0 to 255 scale.
What is the complementary color of #183C6E?: The complementary color is #6E4A18, found by rotating the hue 180° on the color wheel.
Is black or white text better on #183C6E?: White text. Black text has a contrast ratio of 1.91:1 and white text 10.99:1. WCAG asks for at least 4.5:1 for normal text.