What color is #173A5C?

#173A5C is a dark, moderate azure, closest to the named color Poseidon. It belongs to the blue family of colors.

What is the RGB value of #173A5C?

The RGB value is 23, 58, 92: 23 red, 58 green and 92 blue on a 0 to 255 scale.

What is the complementary color of #173A5C?

The complementary color is #5C3917, found by rotating the hue 180° on the color wheel.

Is black or white text better on #173A5C?

White text. Black text has a contrast ratio of 1.8:1 and white text 11.69:1. WCAG asks for at least 4.5:1 for normal text.

#173A5C color

#173A5C rgb(23, 58, 92)

Shades of blue

The hex color #173A5C is a dark, moderate azure.

In the RGB color model it is made of 9% red, 22.7% green and 36.1% blue (23, 58, 92).

Its hue angle is 210°, with 60% saturation and 23% lightness. For print, the CMYK equivalent is 75% cyan, 37% magenta, 0% yellow and 64% black.

The closest named color is Poseidon (#143C5D), a difference of 1.4 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 11.69:1).

#173A5C color codes

HEX	`#173A5C`
RGB	`rgb(23, 58, 92)`
RGB percent	`rgb(9%, 22.7%, 36.1%)`
HSL	`hsl(210, 60%, 23%)`
HSV / HSB	`hsv(210, 75%, 36%)`
CMYK	`cmyk(75%, 37%, 0%, 64%)`
CIE LAB	`lab(23.61, 0.21, -23.98)`
CIE LCH	`lch(23.61, 23.98, 270.5)`
CIE XYZ	`xyz(3.797, 3.981, 10.691)`
Decimal	`1522268`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #173A5C, 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 #173A5C	Ratio	AA	AAA	AA large
Sample text	1.8:1	Fail	Fail	Fail
Sample text	11.69:1	Pass	Pass	Pass

#173A5C as text on	Ratio	AA	AAA	AA large
Sample text	11.69:1	Pass	Pass	Pass
Sample text	1.8:1	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 #173A5C looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #173a5c; }
.text { color: #173a5c; }
.border { border: 2px solid #173a5c; }
.transparent { background-color: rgb(23 58 92 / 50%); }
.gradient { background: linear-gradient(to right, #173a5c, #17175c); }

Background

Text color

Border

Similar colors

Questions

What color is #173A5C?: #173A5C is a dark, moderate azure, closest to the named color Poseidon. It belongs to the blue family of colors.
What is the RGB value of #173A5C?: The RGB value is 23, 58, 92: 23 red, 58 green and 92 blue on a 0 to 255 scale.
What is the complementary color of #173A5C?: The complementary color is #5C3917, found by rotating the hue 180° on the color wheel.
Is black or white text better on #173A5C?: White text. Black text has a contrast ratio of 1.8:1 and white text 11.69:1. WCAG asks for at least 4.5:1 for normal text.