#172A2F color
The hex color #172A2F is a very dark, desaturated cyan.
In the RGB color model it is made of 9% red, 16.5% green and 18.4% blue (23, 42, 47).
Its hue angle is 193°, with 34% saturation and 14% lightness. For print, the CMYK equivalent is 51% cyan, 11% magenta, 0% yellow and 82% black.
The closest named color is Sunken Ship (#10252A), a difference of 1.7 ΔE, which is barely visible.
White text is the more readable choice on this background (contrast 14.91:1).
#172A2F color codes
| HEX | #172A2F | |
|---|---|---|
| RGB | rgb(23, 42, 47) | |
| RGB percent | rgb(9%, 16.5%, 18.4%) | |
| HSL | hsl(193, 34%, 14%) | |
| HSV / HSB | hsv(193, 51%, 18%) | |
| CMYK | cmyk(51%, 11%, 0%, 82%) | |
| CIE LAB | lab(15.71, -6.08, -5.69) | |
| CIE LCH | lch(15.71, 8.33, 223.1) | |
| CIE XYZ | xyz(1.694, 2.043, 2.994) | |
| Decimal | 1518127 | |
| Short hex | None (no 3-digit form) |
Color harmonies
Colors that go with #172A2F, 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 #172A2F | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 1.41:1 | Fail | Fail | Fail |
| Sample text | 14.91:1 | Pass | Pass | Pass |
| #172A2F as text on | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 14.91:1 | Pass | Pass | Pass |
| Sample text | 1.41:1 | 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 #172A2F looks to people with the most common types of color vision deficiency.
#27292fProtanopia
no red cones#23262fDeuteranopia
no green cones#0d2c2cTritanopia
no blue cones#272727Achromatopsia
no color vision
CSS examples
.background { background-color: #172a2f; }
.text { color: #172a2f; }
.border { border: 2px solid #172a2f; }
.transparent { background-color: rgb(23 42 47 / 50%); }
.gradient { background: linear-gradient(to right, #172a2f, #171e2f); }
Similar colors
#10252aSunken Ship#0f282fBlack Box#172b36Oceanic Noir#1e272cBlack Pearl#133337Elite Teal#243640Petrol Slumber#2a3439Gunmetal#293135Nightmare Fuel
Questions
- What color is #172A2F?
- #172A2F is a very dark, desaturated cyan, closest to the named color Sunken Ship. It belongs to the black family of colors.
- What is the RGB value of #172A2F?
- The RGB value is 23, 42, 47: 23 red, 42 green and 47 blue on a 0 to 255 scale.
- What is the complementary color of #172A2F?
- The complementary color is #2F1C17, found by rotating the hue 180° on the color wheel.
- Is black or white text better on #172A2F?
- White text. Black text has a contrast ratio of 1.41:1 and white text 14.91:1. WCAG asks for at least 4.5:1 for normal text.