What color is #172A50?

#172A50 is a dark, moderate blue, closest to the named color Space Cadet. It belongs to the blue family of colors.

What is the RGB value of #172A50?

The RGB value is 23, 42, 80: 23 red, 42 green and 80 blue on a 0 to 255 scale.

What is the complementary color of #172A50?

The complementary color is #503D17, found by rotating the hue 180° on the color wheel.

Is black or white text better on #172A50?

White text. Black text has a contrast ratio of 1.48:1 and white text 14.16:1. WCAG asks for at least 4.5:1 for normal text.

#172A50 color

#172A50 rgb(23, 42, 80)

Shades of blue

The hex color #172A50 is a dark, moderate blue.

In the RGB color model it is made of 9% red, 16.5% green and 31.4% blue (23, 42, 80).

Its hue angle is 220°, with 55% saturation and 20% lightness. For print, the CMYK equivalent is 71% cyan, 48% magenta, 0% yellow and 69% black.

The closest named color is Space Cadet (#1D2951), a difference of 1.8 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 14.16:1).

#172A50 color codes

HEX	`#172A50`
RGB	`rgb(23, 42, 80)`
RGB percent	`rgb(9%, 16.5%, 31.4%)`
HSL	`hsl(220, 55%, 20%)`
HSV / HSB	`hsv(220, 71%, 31%)`
CMYK	`cmyk(71%, 48%, 0%, 69%)`
CIE LAB	`lab(17.54, 6.64, -25.65)`
CIE LCH	`lch(17.54, 26.49, 284.52)`
CIE XYZ	`xyz(2.629, 2.417, 7.916)`
Decimal	`1518160`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #172A50, 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 #172A50	Ratio	AA	AAA	AA large
Sample text	1.48:1	Fail	Fail	Fail
Sample text	14.16:1	Pass	Pass	Pass

#172A50 as text on	Ratio	AA	AAA	AA large
Sample text	14.16:1	Pass	Pass	Pass
Sample text	1.48:1	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 #172A50 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #172a50; }
.text { color: #172a50; }
.border { border: 2px solid #172a50; }
.transparent { background-color: rgb(23 42 80 / 50%); }
.gradient { background: linear-gradient(to right, #172a50, #211750); }

Background

Text color

Border

Similar colors

Questions

What color is #172A50?: #172A50 is a dark, moderate blue, closest to the named color Space Cadet. It belongs to the blue family of colors.
What is the RGB value of #172A50?: The RGB value is 23, 42, 80: 23 red, 42 green and 80 blue on a 0 to 255 scale.
What is the complementary color of #172A50?: The complementary color is #503D17, found by rotating the hue 180° on the color wheel.
Is black or white text better on #172A50?: White text. Black text has a contrast ratio of 1.48:1 and white text 14.16:1. WCAG asks for at least 4.5:1 for normal text.