#172A35 color
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 | |
|---|---|---|
| RGB | rgb(23, 42, 53) | |
| RGB percent | rgb(9%, 16.5%, 20.8%) | |
| HSL | hsl(202, 39%, 15%) | |
| HSV / HSB | hsv(202, 57%, 21%) | |
| CMYK | cmyk(57%, 21%, 0%, 79%) | |
| CIE LAB | lab(15.98, -3.98, -9.5) | |
| CIE LCH | lch(15.98, 10.3, 247.28) | |
| CIE XYZ | xyz(1.824, 2.095, 3.676) | |
| Decimal | 1518133 | |
| Short hex | None (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 #172A35 | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 1.42:1 | Fail | Fail | Fail |
| Sample text | 14.8:1 | Pass | Pass | Pass |
| #172A35 as text on | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 14.8:1 | Pass | Pass | Pass |
| Sample text | 1.42:1 | 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 #172A35 looks to people with the most common types of color vision deficiency.
#252a36Protanopia
no red cones#212635Deuteranopia
no green cones#092d2eTritanopia
no blue cones#282828Achromatopsia
no color vision
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); }
Similar colors
#172b36Oceanic Noir#1e3442Blue Whale#243640Petrol Slumber#1e3642Into the Night#0f282fBlack Box#1e272cBlack Pearl#002233Midnight Dreams#10252aSunken Ship
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.