What color is #00638A?

#00638A is a dark, vivid azure, closest to the named color Blue Velvet. It belongs to the blue family of colors.

What is the RGB value of #00638A?

The RGB value is 0, 99, 138: 0 red, 99 green and 138 blue on a 0 to 255 scale.

What is the complementary color of #00638A?

The complementary color is #8A2700, found by rotating the hue 180° on the color wheel.

Is black or white text better on #00638A?

White text. Black text has a contrast ratio of 3.15:1 and white text 6.66:1. WCAG asks for at least 4.5:1 for normal text.

#00638A color

#00638A rgb(0, 99, 138)

Shades of blue

The hex color #00638A is a dark, vivid azure.

In the RGB color model it is made of 0% red, 38.8% green and 54.1% blue (0, 99, 138).

Its hue angle is 197°, with 100% saturation and 27% lightness. For print, the CMYK equivalent is 100% cyan, 28% magenta, 0% yellow and 46% black.

The closest named color is Blue Velvet (#0D6183), a difference of 1.5 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 6.66:1).

#00638A color codes

HEX	`#00638A`
RGB	`rgb(0, 99, 138)`
RGB percent	`rgb(0%, 38.8%, 54.1%)`
HSL	`hsl(197, 100%, 27%)`
HSV / HSB	`hsv(197, 100%, 54%)`
CMYK	`cmyk(100%, 28%, 0%, 46%)`
CIE LAB	`lab(39.17, -9.5, -28.38)`
CIE LCH	`lch(39.17, 29.93, 251.49)`
CIE XYZ	`xyz(9.047, 10.757, 25.639)`
Decimal	`25482`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #00638A, 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 #00638A	Ratio	AA	AAA	AA large
Sample text	3.15:1	Fail	Fail	Pass
Sample text	6.66:1	Pass	Fail	Pass

#00638A as text on	Ratio	AA	AAA	AA large
Sample text	6.66:1	Pass	Fail	Pass
Sample text	3.15:1	Fail	Fail	Pass

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 #00638A looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #00638a; }
.text { color: #00638a; }
.border { border: 2px solid #00638a; }
.transparent { background-color: rgb(0 99 138 / 50%); }
.gradient { background: linear-gradient(to right, #00638a, #001e8a); }

Background

Text color

Border

Similar colors

Closest common color name: Cerulean.

Questions

What color is #00638A?: #00638A is a dark, vivid azure, closest to the named color Blue Velvet. It belongs to the blue family of colors.
What is the RGB value of #00638A?: The RGB value is 0, 99, 138: 0 red, 99 green and 138 blue on a 0 to 255 scale.
What is the complementary color of #00638A?: The complementary color is #8A2700, found by rotating the hue 180° on the color wheel.
Is black or white text better on #00638A?: White text. Black text has a contrast ratio of 3.15:1 and white text 6.66:1. WCAG asks for at least 4.5:1 for normal text.