What color is #1B4391?

#1B4391 is a dark, moderate azure, closest to the named color Cascade Twilight. It belongs to the blue family of colors.

What is the RGB value of #1B4391?

The RGB value is 27, 67, 145: 27 red, 67 green and 145 blue on a 0 to 255 scale.

What is the complementary color of #1B4391?

The complementary color is #91691B, found by rotating the hue 180° on the color wheel.

Is black or white text better on #1B4391?

White text. Black text has a contrast ratio of 2.26:1 and white text 9.3:1. WCAG asks for at least 4.5:1 for normal text.

#1B4391 color

#1B4391 rgb(27, 67, 145)

Shades of blue

The hex color #1B4391 is a dark, moderate azure.

In the RGB color model it is made of 10.6% red, 26.3% green and 56.9% blue (27, 67, 145).

Its hue angle is 220°, with 69% saturation and 34% lightness. For print, the CMYK equivalent is 81% cyan, 54% magenta, 0% yellow and 43% black.

The closest named color is Cascade Twilight (#234893), a difference of 1.6 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 9.3:1).

#1B4391 color codes

HEX	`#1B4391`
RGB	`rgb(27, 67, 145)`
RGB percent	`rgb(10.6%, 26.3%, 56.9%)`
HSL	`hsl(220, 69%, 34%)`
HSV / HSB	`hsv(220, 81%, 57%)`
CMYK	`cmyk(81%, 54%, 0%, 43%)`
CIE LAB	`lab(30.13, 16.25, -47.03)`
CIE LCH	`lch(30.13, 49.76, 289.06)`
CIE XYZ	`xyz(7.568, 6.291, 27.598)`
Decimal	`1786769`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #1B4391, 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 #1B4391	Ratio	AA	AAA	AA large
Sample text	2.26:1	Fail	Fail	Fail
Sample text	9.3:1	Pass	Pass	Pass

#1B4391 as text on	Ratio	AA	AAA	AA large
Sample text	9.3:1	Pass	Pass	Pass
Sample text	2.26:1	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 #1B4391 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #1b4391; }
.text { color: #1b4391; }
.border { border: 2px solid #1b4391; }
.transparent { background-color: rgb(27 67 145 / 50%); }
.gradient { background: linear-gradient(to right, #1b4391, #2e1b91); }

Background

Text color

Border

Similar colors

Questions

What color is #1B4391?: #1B4391 is a dark, moderate azure, closest to the named color Cascade Twilight. It belongs to the blue family of colors.
What is the RGB value of #1B4391?: The RGB value is 27, 67, 145: 27 red, 67 green and 145 blue on a 0 to 255 scale.
What is the complementary color of #1B4391?: The complementary color is #91691B, found by rotating the hue 180° on the color wheel.
Is black or white text better on #1B4391?: White text. Black text has a contrast ratio of 2.26:1 and white text 9.3:1. WCAG asks for at least 4.5:1 for normal text.