What color is #1D3F75?

#1D3F75 is a dark, moderate azure, closest to the named color Aegean Blue. It belongs to the blue family of colors.

What is the RGB value of #1D3F75?

The RGB value is 29, 63, 117: 29 red, 63 green and 117 blue on a 0 to 255 scale.

What is the complementary color of #1D3F75?

The complementary color is #75531D, found by rotating the hue 180° on the color wheel.

Is black or white text better on #1D3F75?

White text. Black text has a contrast ratio of 2.02:1 and white text 10.4:1. WCAG asks for at least 4.5:1 for normal text.

#1D3F75 color

#1D3F75 rgb(29, 63, 117)

Shades of blue

The hex color #1D3F75 is a dark, moderate azure.

In the RGB color model it is made of 11.4% red, 24.7% green and 45.9% blue (29, 63, 117).

Its hue angle is 217°, with 60% saturation and 29% lightness. For print, the CMYK equivalent is 75% cyan, 46% magenta, 0% yellow and 54% black.

The closest named color is Aegean Blue (#1B416F), a difference of 1.8 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 10.4:1).

#1D3F75 color codes

HEX	`#1D3F75`
RGB	`rgb(29, 63, 117)`
RGB percent	`rgb(11.4%, 24.7%, 45.9%)`
HSL	`hsl(217, 60%, 29%)`
HSV / HSB	`hsv(217, 75%, 46%)`
CMYK	`cmyk(75%, 46%, 0%, 54%)`
CIE LAB	`lab(27.02, 7.9, -34.62)`
CIE LCH	`lch(27.02, 35.51, 282.86)`
CIE XYZ	`xyz(5.494, 5.1, 17.521)`
Decimal	`1916789`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #1D3F75, 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 #1D3F75	Ratio	AA	AAA	AA large
Sample text	2.02:1	Fail	Fail	Fail
Sample text	10.4:1	Pass	Pass	Pass

#1D3F75 as text on	Ratio	AA	AAA	AA large
Sample text	10.4:1	Pass	Pass	Pass
Sample text	2.02:1	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 #1D3F75 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #1d3f75; }
.text { color: #1d3f75; }
.border { border: 2px solid #1d3f75; }
.transparent { background-color: rgb(29 63 117 / 50%); }
.gradient { background: linear-gradient(to right, #1d3f75, #271d75); }

Background

Text color

Border

Similar colors

Closest common color name: Prussian Blue.

Questions

What color is #1D3F75?: #1D3F75 is a dark, moderate azure, closest to the named color Aegean Blue. It belongs to the blue family of colors.
What is the RGB value of #1D3F75?: The RGB value is 29, 63, 117: 29 red, 63 green and 117 blue on a 0 to 255 scale.
What is the complementary color of #1D3F75?: The complementary color is #75531D, found by rotating the hue 180° on the color wheel.
Is black or white text better on #1D3F75?: White text. Black text has a contrast ratio of 2.02:1 and white text 10.4:1. WCAG asks for at least 4.5:1 for normal text.