What color is #00399B?

#00399B 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 #00399B?

The RGB value is 0, 57, 155: 0 red, 57 green and 155 blue on a 0 to 255 scale.

What is the complementary color of #00399B?

The complementary color is #9B6200, found by rotating the hue 180° on the color wheel.

Is black or white text better on #00399B?

White text. Black text has a contrast ratio of 2.06:1 and white text 10.2:1. WCAG asks for at least 4.5:1 for normal text.

#00399B color

#00399B rgb(0, 57, 155)

Shades of blue

The hex color #00399B is a dark, vivid azure.

In the RGB color model it is made of 0% red, 22.4% green and 60.8% blue (0, 57, 155).

Its hue angle is 218°, with 100% saturation and 30% lightness. For print, the CMYK equivalent is 100% cyan, 63% magenta, 0% yellow and 39% black.

The closest named color is Smalt (#003399), a difference of 1.9 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 10.2:1).

#00399B color codes

HEX	`#00399B`
RGB	`rgb(0, 57, 155)`
RGB percent	`rgb(0%, 22.4%, 60.8%)`
HSL	`hsl(218, 100%, 30%)`
HSV / HSB	`hsv(218, 100%, 61%)`
CMYK	`cmyk(100%, 63%, 0%, 39%)`
CIE LAB	`lab(27.55, 25.57, -57.38)`
CIE LCH	`lch(27.55, 62.82, 294.02)`
CIE XYZ	`xyz(7.377, 5.292, 31.637)`
Decimal	`14747`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #00399B, 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 #00399B	Ratio	AA	AAA	AA large
Sample text	2.06:1	Fail	Fail	Fail
Sample text	10.2:1	Pass	Pass	Pass

#00399B as text on	Ratio	AA	AAA	AA large
Sample text	10.2:1	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 #00399B looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #00399b; }
.text { color: #00399b; }
.border { border: 2px solid #00399b; }
.transparent { background-color: rgb(0 57 155 / 50%); }
.gradient { background: linear-gradient(to right, #00399b, #15009b); }

Background

Text color

Border

Similar colors

Questions

What color is #00399B?: #00399B 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 #00399B?: The RGB value is 0, 57, 155: 0 red, 57 green and 155 blue on a 0 to 255 scale.
What is the complementary color of #00399B?: The complementary color is #9B6200, found by rotating the hue 180° on the color wheel.
Is black or white text better on #00399B?: White text. Black text has a contrast ratio of 2.06:1 and white text 10.2:1. WCAG asks for at least 4.5:1 for normal text.