#172A35 color

#172A35 rgb(23, 42, 53)
Shades of black

The hex color #172A35 is a very dark, desaturated azure.

In the RGB color model it is made of 9% red, 16.5% green and 20.8% blue (23, 42, 53).

Its hue angle is 202°, with 39% saturation and 15% lightness. For print, the CMYK equivalent is 57% cyan, 21% magenta, 0% yellow and 79% black.

The closest named color is Oceanic Noir (#172B36), a difference of 0.4 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 14.8:1).

#172A35 color codes

HEX#172A35
RGBrgb(23, 42, 53)
RGB percentrgb(9%, 16.5%, 20.8%)
HSLhsl(202, 39%, 15%)
HSV / HSBhsv(202, 57%, 21%)
CMYKcmyk(57%, 21%, 0%, 79%)
CIE LABlab(15.98, -3.98, -9.5)
CIE LCHlch(15.98, 10.3, 247.28)
CIE XYZxyz(1.824, 2.095, 3.676)
Decimal1518133
Short hexNone (no 3-digit form)

Color harmonies

Colors that go with #172A35, 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 #172A35RatioAAAAAAA large
Sample text1.42:1FailFailFail
Sample text14.8:1PassPassPass
#172A35 as text onRatioAAAAAAA large
Sample text14.8:1PassPassPass
Sample text1.42:1FailFailFail

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 #172A35 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #172a35; }
.text { color: #172a35; }
.border { border: 2px solid #172a35; }
.transparent { background-color: rgb(23 42 53 / 50%); }
.gradient { background: linear-gradient(to right, #172a35, #171b35); }
Background
Text color
Border

Similar colors

Closest common color name: Gunmetal.

Questions

What color is #172A35?
#172A35 is a very dark, desaturated azure, closest to the named color Oceanic Noir. It belongs to the black family of colors.
What is the RGB value of #172A35?
The RGB value is 23, 42, 53: 23 red, 42 green and 53 blue on a 0 to 255 scale.
What is the complementary color of #172A35?
The complementary color is #352217, found by rotating the hue 180° on the color wheel.
Is black or white text better on #172A35?
White text. Black text has a contrast ratio of 1.42:1 and white text 14.8:1. WCAG asks for at least 4.5:1 for normal text.