#172A2A color
The hex color #172A2A is a very dark, desaturated cyan.
In the RGB color model it is made of 9% red, 16.5% green and 16.5% blue (23, 42, 42).
Its hue angle is 180°, with 29% saturation and 13% lightness. For print, the CMYK equivalent is 45% cyan, 0% magenta, 0% yellow and 84% black.
The closest named color is Swamp Thing (#162825), a difference of 2 ΔE, a small difference.
White text is the more readable choice on this background (contrast 14.99:1).
#172A2A color codes
| HEX | #172A2A | |
|---|---|---|
| RGB | rgb(23, 42, 42) | |
| RGB percent | rgb(9%, 16.5%, 16.5%) | |
| HSL | hsl(180, 29%, 13%) | |
| HSV / HSB | hsv(180, 45%, 16%) | |
| CMYK | cmyk(45%, 0%, 0%, 84%) | |
| CIE LAB | lab(15.51, -7.72, -2.46) | |
| CIE LCH | lch(15.51, 8.1, 197.65) | |
| CIE XYZ | xyz(1.599, 2.005, 2.493) | |
| Decimal | 1518122 | |
| Short hex | None (no 3-digit form) |
Color harmonies
Colors that go with #172A2A, 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 #172A2A | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 1.4:1 | Fail | Fail | Fail |
| Sample text | 14.99:1 | Pass | Pass | Pass |
| #172A2A as text on | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 14.99:1 | Pass | Pass | Pass |
| Sample text | 1.4:1 | 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 #172A2A looks to people with the most common types of color vision deficiency.
#28282aProtanopia
no red cones#24262aDeuteranopia
no green cones#0f2b2aTritanopia
no blue cones#272727Achromatopsia
no color vision
CSS examples
.background { background-color: #172a2a; }
.text { color: #172a2a; }
.border { border: 2px solid #172a2a; }
.transparent { background-color: rgb(23 42 42 / 50%); }
.gradient { background: linear-gradient(to right, #172a2a, #17212a); }
Similar colors
#162825Swamp Thing#10252aSunken Ship#133337Elite Teal#0f282fBlack Box#293432Aztec#2b322dTerminal Black#1e272cBlack Pearl#1c3b42Royal Neptune
Closest common color name: Gunmetal.
Questions
- What color is #172A2A?
- #172A2A is a very dark, desaturated cyan, closest to the named color Swamp Thing. It belongs to the black family of colors.
- What is the RGB value of #172A2A?
- The RGB value is 23, 42, 42: 23 red, 42 green and 42 blue on a 0 to 255 scale.
- What is the complementary color of #172A2A?
- The complementary color is #2A1717, found by rotating the hue 180° on the color wheel.
- Is black or white text better on #172A2A?
- White text. Black text has a contrast ratio of 1.4:1 and white text 14.99:1. WCAG asks for at least 4.5:1 for normal text.