What color is #0A175D?

#0A175D is a dark, vivid blue, closest to the named color Interstellar Blue. It belongs to the blue family of colors.

What is the RGB value of #0A175D?

The RGB value is 10, 23, 93: 10 red, 23 green and 93 blue on a 0 to 255 scale.

What is the complementary color of #0A175D?

The complementary color is #5D500A, found by rotating the hue 180° on the color wheel.

Is black or white text better on #0A175D?

White text. Black text has a contrast ratio of 1.29:1 and white text 16.23:1. WCAG asks for at least 4.5:1 for normal text.

#0A175D color

#0A175D rgb(10, 23, 93)

Shades of blue

The hex color #0A175D is a dark, vivid blue.

In the RGB color model it is made of 3.9% red, 9% green and 36.5% blue (10, 23, 93).

Its hue angle is 231°, with 81% saturation and 20% lightness. For print, the CMYK equivalent is 89% cyan, 75% magenta, 0% yellow and 64% black.

The closest named color is Interstellar Blue (#001155), a difference of 1.9 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 16.23:1).

#0A175D color codes

HEX	`#0A175D`
RGB	`rgb(10, 23, 93)`
RGB percent	`rgb(3.9%, 9%, 36.5%)`
HSL	`hsl(231, 81%, 20%)`
HSV / HSB	`hsv(231, 89%, 36%)`
CMYK	`cmyk(89%, 75%, 0%, 64%)`
CIE LAB	`lab(12.4, 24.41, -42.78)`
CIE LCH	`lch(12.4, 49.26, 299.71)`
CIE XYZ	`xyz(2.407, 1.467, 10.51)`
Decimal	`661341`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #0A175D, 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 #0A175D	Ratio	AA	AAA	AA large
Sample text	1.29:1	Fail	Fail	Fail
Sample text	16.23:1	Pass	Pass	Pass

#0A175D as text on	Ratio	AA	AAA	AA large
Sample text	16.23:1	Pass	Pass	Pass
Sample text	1.29:1	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 #0A175D looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #0a175d; }
.text { color: #0a175d; }
.border { border: 2px solid #0a175d; }
.transparent { background-color: rgb(10 23 93 / 50%); }
.gradient { background: linear-gradient(to right, #0a175d, #270a5d); }

Background

Text color

Border

Similar colors

Questions

What color is #0A175D?: #0A175D is a dark, vivid blue, closest to the named color Interstellar Blue. It belongs to the blue family of colors.
What is the RGB value of #0A175D?: The RGB value is 10, 23, 93: 10 red, 23 green and 93 blue on a 0 to 255 scale.
What is the complementary color of #0A175D?: The complementary color is #5D500A, found by rotating the hue 180° on the color wheel.
Is black or white text better on #0A175D?: White text. Black text has a contrast ratio of 1.29:1 and white text 16.23:1. WCAG asks for at least 4.5:1 for normal text.