What color is #1B4281?

#1B4281 is a dark, moderate azure, closest to the named color Maritime Outpost. It belongs to the blue family of colors.

What is the RGB value of #1B4281?

The RGB value is 27, 66, 129: 27 red, 66 green and 129 blue on a 0 to 255 scale.

What is the complementary color of #1B4281?

The complementary color is #815A1B, found by rotating the hue 180° on the color wheel.

Is black or white text better on #1B4281?

White text. Black text has a contrast ratio of 2.14:1 and white text 9.8:1. WCAG asks for at least 4.5:1 for normal text.

#1B4281 color

#1B4281 rgb(27, 66, 129)

Shades of blue

The hex color #1B4281 is a dark, moderate azure.

In the RGB color model it is made of 10.6% red, 25.9% green and 50.6% blue (27, 66, 129).

Its hue angle is 217°, with 65% saturation and 31% lightness. For print, the CMYK equivalent is 79% cyan, 49% magenta, 0% yellow and 49% black.

The closest named color is Maritime Outpost (#1E4581), a difference of 1 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 9.8:1).

#1B4281 color codes

HEX	`#1B4281`
RGB	`rgb(27, 66, 129)`
RGB percent	`rgb(10.6%, 25.9%, 50.6%)`
HSL	`hsl(217, 65%, 31%)`
HSV / HSB	`hsv(217, 79%, 51%)`
CMYK	`cmyk(79%, 49%, 0%, 49%)`
CIE LAB	`lab(28.68, 10.42, -39.49)`
CIE LCH	`lch(28.68, 40.84, 284.79)`
CIE XYZ	`xyz(6.361, 5.714, 21.532)`
Decimal	`1786497`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #1B4281, 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 #1B4281	Ratio	AA	AAA	AA large
Sample text	2.14:1	Fail	Fail	Fail
Sample text	9.8:1	Pass	Pass	Pass

#1B4281 as text on	Ratio	AA	AAA	AA large
Sample text	9.8:1	Pass	Pass	Pass
Sample text	2.14:1	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 #1B4281 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #1b4281; }
.text { color: #1b4281; }
.border { border: 2px solid #1b4281; }
.transparent { background-color: rgb(27 66 129 / 50%); }
.gradient { background: linear-gradient(to right, #1b4281, #271b81); }

Background

Text color

Border

Similar colors

Closest common color name: Cobalt Blue.

Questions

What color is #1B4281?: #1B4281 is a dark, moderate azure, closest to the named color Maritime Outpost. It belongs to the blue family of colors.
What is the RGB value of #1B4281?: The RGB value is 27, 66, 129: 27 red, 66 green and 129 blue on a 0 to 255 scale.
What is the complementary color of #1B4281?: The complementary color is #815A1B, found by rotating the hue 180° on the color wheel.
Is black or white text better on #1B4281?: White text. Black text has a contrast ratio of 2.14:1 and white text 9.8:1. WCAG asks for at least 4.5:1 for normal text.