What color is #151D48?

#151D48 is a very dark, moderate blue, closest to the named color Fly-by-Night. It belongs to the blue family of colors.

What is the RGB value of #151D48?

The RGB value is 21, 29, 72: 21 red, 29 green and 72 blue on a 0 to 255 scale.

What is the complementary color of #151D48?

The complementary color is #484015, found by rotating the hue 180° on the color wheel.

Is black or white text better on #151D48?

White text. Black text has a contrast ratio of 1.3:1 and white text 16.14:1. WCAG asks for at least 4.5:1 for normal text.

#151D48 color

#151D48 rgb(21, 29, 72)

Shades of blue

The hex color #151D48 is a very dark, moderate blue.

In the RGB color model it is made of 8.2% red, 11.4% green and 28.2% blue (21, 29, 72).

Its hue angle is 231°, with 55% saturation and 18% lightness. For print, the CMYK equivalent is 71% cyan, 60% magenta, 0% yellow and 72% black.

The closest named color is Fly-by-Night (#1C1E4D), a difference of 1.7 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 16.14:1).

#151D48 color codes

HEX	`#151D48`
RGB	`rgb(21, 29, 72)`
RGB percent	`rgb(8.2%, 11.4%, 28.2%)`
HSL	`hsl(231, 55%, 18%)`
HSV / HSB	`hsv(231, 71%, 28%)`
CMYK	`cmyk(71%, 60%, 0%, 72%)`
CIE LAB	`lab(12.65, 12.65, -28.05)`
CIE LCH	`lch(12.65, 30.77, 294.28)`
CIE XYZ	`xyz(1.918, 1.506, 6.319)`
Decimal	`1383752`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #151D48, 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 #151D48	Ratio	AA	AAA	AA large
Sample text	1.3:1	Fail	Fail	Fail
Sample text	16.14:1	Pass	Pass	Pass

#151D48 as text on	Ratio	AA	AAA	AA large
Sample text	16.14:1	Pass	Pass	Pass
Sample text	1.3:1	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 #151D48 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #151d48; }
.text { color: #151d48; }
.border { border: 2px solid #151d48; }
.transparent { background-color: rgb(21 29 72 / 50%); }
.gradient { background: linear-gradient(to right, #151d48, #271548); }

Background

Text color

Border

Similar colors

Closest common color name: Oxford Blue.

Questions

What color is #151D48?: #151D48 is a very dark, moderate blue, closest to the named color Fly-by-Night. It belongs to the blue family of colors.
What is the RGB value of #151D48?: The RGB value is 21, 29, 72: 21 red, 29 green and 72 blue on a 0 to 255 scale.
What is the complementary color of #151D48?: The complementary color is #484015, found by rotating the hue 180° on the color wheel.
Is black or white text better on #151D48?: White text. Black text has a contrast ratio of 1.3:1 and white text 16.14:1. WCAG asks for at least 4.5:1 for normal text.