#172856 color
The hex color #172856 is a dark, moderate blue.
In the RGB color model it is made of 9% red, 15.7% green and 33.7% blue (23, 40, 86).
Its hue angle is 224°, with 58% saturation and 21% lightness. For print, the CMYK equivalent is 73% cyan, 53% magenta, 0% yellow and 66% black.
The closest named color is Space Cadet (#1D2951), a difference of 1.7 ΔE, which is barely visible.
White text is the more readable choice on this background (contrast 14.24:1).
#172856 color codes
| HEX | #172856 | |
|---|---|---|
| RGB | rgb(23, 40, 86) | |
| RGB percent | rgb(9%, 15.7%, 33.7%) | |
| HSL | hsl(224, 58%, 21%) | |
| HSV / HSB | hsv(224, 73%, 34%) | |
| CMYK | cmyk(73%, 53%, 0%, 66%) | |
| CIE LAB | lab(17.33, 10.61, -30.02) | |
| CIE LCH | lch(17.33, 31.84, 289.47) | |
| CIE XYZ | xyz(2.791, 2.371, 9.113) | |
| Decimal | 1517654 | |
| Short hex | None (no 3-digit form) |
Color harmonies
Colors that go with #172856, 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 #172856 | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 1.47:1 | Fail | Fail | Fail |
| Sample text | 14.24:1 | Pass | Pass | Pass |
| #172856 as text on | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 14.24:1 | Pass | Pass | Pass |
| Sample text | 1.47:1 | 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 #172856 looks to people with the most common types of color vision deficiency.
#0e2e58Protanopia
no red cones#012855Deuteranopia
no green cones#00333aTritanopia
no blue cones#2b2b2bAchromatopsia
no color vision
CSS examples
.background { background-color: #172856; }
.text { color: #172856; }
.border { border: 2px solid #172856; }
.transparent { background-color: rgb(23 40 86 / 50%); }
.gradient { background: linear-gradient(to right, #172856, #261756); }
Similar colors
#1d2951Space Cadet#112358Fibonacci Blue#112255Dark Soul#1c2e63Mythical Night#012253Subnautical#052462Black Sea Night#112244Dark Eclipse#002147Oxford Blue
Questions
- What color is #172856?
- #172856 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 #172856?
- The RGB value is 23, 40, 86: 23 red, 40 green and 86 blue on a 0 to 255 scale.
- What is the complementary color of #172856?
- The complementary color is #564517, found by rotating the hue 180° on the color wheel.
- Is black or white text better on #172856?
- White text. Black text has a contrast ratio of 1.47:1 and white text 14.24:1. WCAG asks for at least 4.5:1 for normal text.