What color is #0037A1?

#0037A1 is a dark, vivid azure, closest to the named color Smalt. It belongs to the blue family of colors.

What is the RGB value of #0037A1?

The RGB value is 0, 55, 161: 0 red, 55 green and 161 blue on a 0 to 255 scale.

What is the complementary color of #0037A1?

The complementary color is #A16A00, found by rotating the hue 180° on the color wheel.

Is black or white text better on #0037A1?

White text. Black text has a contrast ratio of 2.06:1 and white text 10.19:1. WCAG asks for at least 4.5:1 for normal text.

#0037A1 color

#0037A1 rgb(0, 55, 161)

Shades of blue

The hex color #0037A1 is a dark, vivid azure.

In the RGB color model it is made of 0% red, 21.6% green and 63.1% blue (0, 55, 161).

Its hue angle is 220°, with 100% saturation and 32% lightness. For print, the CMYK equivalent is 100% cyan, 66% magenta, 0% yellow and 37% black.

The closest named color is Smalt (#003399), a difference of 1.5 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 10.19:1).

#0037A1 color codes

HEX	`#0037A1`
RGB	`rgb(0, 55, 161)`
RGB percent	`rgb(0%, 21.6%, 63.1%)`
HSL	`hsl(220, 100%, 32%)`
HSV / HSB	`hsv(220, 100%, 63%)`
CMYK	`cmyk(100%, 66%, 0%, 37%)`
CIE LAB	`lab(27.59, 29.38, -60.97)`
CIE LCH	`lch(27.59, 67.68, 295.73)`
CIE XYZ	`xyz(7.797, 5.305, 34.324)`
Decimal	`14241`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #0037A1, 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 #0037A1	Ratio	AA	AAA	AA large
Sample text	2.06:1	Fail	Fail	Fail
Sample text	10.19:1	Pass	Pass	Pass

#0037A1 as text on	Ratio	AA	AAA	AA large
Sample text	10.19:1	Pass	Pass	Pass
Sample text	2.06:1	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 #0037A1 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #0037a1; }
.text { color: #0037a1; }
.border { border: 2px solid #0037a1; }
.transparent { background-color: rgb(0 55 161 / 50%); }
.gradient { background: linear-gradient(to right, #0037a1, #1900a1); }

Background

Text color

Border

Similar colors

Questions

What color is #0037A1?: #0037A1 is a dark, vivid azure, closest to the named color Smalt. It belongs to the blue family of colors.
What is the RGB value of #0037A1?: The RGB value is 0, 55, 161: 0 red, 55 green and 161 blue on a 0 to 255 scale.
What is the complementary color of #0037A1?: The complementary color is #A16A00, found by rotating the hue 180° on the color wheel.
Is black or white text better on #0037A1?: White text. Black text has a contrast ratio of 2.06:1 and white text 10.19:1. WCAG asks for at least 4.5:1 for normal text.