What color is #273C5A?

#273C5A is a dark, desaturated azure known as Nautilus. It belongs to the blue family of colors.

What is the RGB value of Nautilus?

The RGB value is 39, 60, 90: 39 red, 60 green and 90 blue on a 0 to 255 scale.

What is the complementary color of Nautilus?

The complementary color is #5A4527, found by rotating the hue 180° on the color wheel.

Is black or white text better on #273C5A?

White text. Black text has a contrast ratio of 1.88:1 and white text 11.17:1. WCAG asks for at least 4.5:1 for normal text.

Nautilus color: hex code #273C5A

#273C5A rgb(39, 60, 90)

Shades of blue

Nautilus has the hex code #273C5A. It is a dark, desaturated azure.

In the RGB color model it is made of 15.3% red, 23.5% green and 35.3% blue (39, 60, 90).

Its hue angle is 215°, with 40% saturation and 25% lightness. For print, the CMYK equivalent is 57% cyan, 33% magenta, 0% yellow and 65% black.

White text is the more readable choice on this background (contrast 11.17:1).

Nautilus (#273C5A) color codes

HEX	`#273C5A`
RGB	`rgb(39, 60, 90)`
RGB percent	`rgb(15.3%, 23.5%, 35.3%)`
HSL	`hsl(215, 40%, 25%)`
HSV / HSB	`hsv(215, 57%, 35%)`
CMYK	`cmyk(57%, 33%, 0%, 65%)`
CIE LAB	`lab(24.95, 1.6, -20.5)`
CIE LCH	`lch(24.95, 20.56, 274.45)`
CIE XYZ	`xyz(4.297, 4.401, 10.294)`
Decimal	`2571354`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with Nautilus, 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 #273C5A	Ratio	AA	AAA	AA large
Sample text	1.88:1	Fail	Fail	Fail
Sample text	11.17:1	Pass	Pass	Pass

#273C5A as text on	Ratio	AA	AAA	AA large
Sample text	11.17:1	Pass	Pass	Pass
Sample text	1.88:1	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 #273C5A looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #273c5a; }
.text { color: #273c5a; }
.border { border: 2px solid #273c5a; }
.transparent { background-color: rgb(39 60 90 / 50%); }
.gradient { background: linear-gradient(to right, #273c5a, #2b275a); }

Background

Text color

Border

Similar colors

Closest common color name: Prussian Blue.

See #273C5A on its hex code page

Questions

What color is #273C5A?: #273C5A is a dark, desaturated azure known as Nautilus. It belongs to the blue family of colors.
What is the RGB value of Nautilus?: The RGB value is 39, 60, 90: 39 red, 60 green and 90 blue on a 0 to 255 scale.
What is the complementary color of Nautilus?: The complementary color is #5A4527, found by rotating the hue 180° on the color wheel.
Is black or white text better on #273C5A?: White text. Black text has a contrast ratio of 1.88:1 and white text 11.17:1. WCAG asks for at least 4.5:1 for normal text.