What color is #1B355F?

#1B355F is a dark, moderate azure, closest to the named color Marine. It belongs to the blue family of colors.

What is the RGB value of #1B355F?

The RGB value is 27, 53, 95: 27 red, 53 green and 95 blue on a 0 to 255 scale.

What is the complementary color of #1B355F?

The complementary color is #5F451B, found by rotating the hue 180° on the color wheel.

Is black or white text better on #1B355F?

White text. Black text has a contrast ratio of 1.72:1 and white text 12.2:1. WCAG asks for at least 4.5:1 for normal text.

#1B355F color

#1B355F rgb(27, 53, 95)

Shades of blue

The hex color #1B355F is a dark, moderate azure.

In the RGB color model it is made of 10.6% red, 20.8% green and 37.3% blue (27, 53, 95).

Its hue angle is 217°, with 56% saturation and 24% lightness. For print, the CMYK equivalent is 72% cyan, 44% magenta, 0% yellow and 63% black.

The closest named color is Marine (#042E60), a difference of 2.8 ΔE, a small difference.

White text is the more readable choice on this background (contrast 12.2:1).

#1B355F color codes

HEX	`#1B355F`
RGB	`rgb(27, 53, 95)`
RGB percent	`rgb(10.6%, 20.8%, 37.3%)`
HSL	`hsl(217, 56%, 24%)`
HSV / HSB	`hsv(217, 72%, 37%)`
CMYK	`cmyk(72%, 44%, 0%, 63%)`
CIE LAB	`lab(22.32, 5.64, -27.97)`
CIE LCH	`lch(22.32, 28.54, 281.41)`
CIE XYZ	`xyz(3.79, 3.605, 11.32)`
Decimal	`1783135`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #1B355F, 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 #1B355F	Ratio	AA	AAA	AA large
Sample text	1.72:1	Fail	Fail	Fail
Sample text	12.2:1	Pass	Pass	Pass

#1B355F as text on	Ratio	AA	AAA	AA large
Sample text	12.2:1	Pass	Pass	Pass
Sample text	1.72:1	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 #1B355F looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #1b355f; }
.text { color: #1b355f; }
.border { border: 2px solid #1b355f; }
.transparent { background-color: rgb(27 53 95 / 50%); }
.gradient { background: linear-gradient(to right, #1b355f, #231b5f); }

Background

Text color

Border

Similar colors

Closest common color name: Prussian Blue.

Questions

What color is #1B355F?: #1B355F is a dark, moderate azure, closest to the named color Marine. It belongs to the blue family of colors.
What is the RGB value of #1B355F?: The RGB value is 27, 53, 95: 27 red, 53 green and 95 blue on a 0 to 255 scale.
What is the complementary color of #1B355F?: The complementary color is #5F451B, found by rotating the hue 180° on the color wheel.
Is black or white text better on #1B355F?: White text. Black text has a contrast ratio of 1.72:1 and white text 12.2:1. WCAG asks for at least 4.5:1 for normal text.