#1B1C39 color
The hex color #1B1C39 is a very dark, desaturated blue.
In the RGB color model it is made of 10.6% red, 11% green and 22.4% blue (27, 28, 57).
Its hue angle is 238°, with 36% saturation and 16% lightness. For print, the CMYK equivalent is 53% cyan, 51% magenta, 0% yellow and 78% black.
The closest named color is Nightwalker (#161D3B), a difference of 2 ΔE, a small difference.
White text is the more readable choice on this background (contrast 16.51:1).
#1B1C39 color codes
| HEX | #1B1C39 | |
|---|---|---|
| RGB | rgb(27, 28, 57) | |
| RGB percent | rgb(10.6%, 11%, 22.4%) | |
| HSL | hsl(238, 36%, 16%) | |
| HSV / HSB | hsv(238, 53%, 22%) | |
| CMYK | cmyk(53%, 51%, 0%, 78%) | |
| CIE LAB | lab(11.68, 8.98, -19.02) | |
| CIE LCH | lch(11.68, 21.04, 295.26) | |
| CIE XYZ | xyz(1.606, 1.359, 4.048) | |
| Decimal | 1776697 | |
| Short hex | None (no 3-digit form) |
Color harmonies
Colors that go with #1B1C39, 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 #1B1C39 | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 1.27:1 | Fail | Fail | Fail |
| Sample text | 16.51:1 | Pass | Pass | Pass |
| #1B1C39 as text on | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 16.51:1 | Pass | Pass | Pass |
| Sample text | 1.27:1 | 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 #1B1C39 looks to people with the most common types of color vision deficiency.
#11203aProtanopia
no red cones#0f1e38Deuteranopia
no green cones#112227Tritanopia
no blue cones#1f1f1fAchromatopsia
no color vision
CSS examples
.background { background-color: #1b1c39; }
.text { color: #1b1c39; }
.border { border: 2px solid #1b1c39; }
.transparent { background-color: rgb(27 28 57 / 50%); }
.gradient { background: linear-gradient(to right, #1b1c39, #291b39); }
Similar colors
#161d3bNightwalker#222244Black Market#151931Dark Knight#2a2243Midnight Velvet#161e34Sombre Night#211d49Azulado#112244Dark Eclipse#041330Squid’s Ink
Closest common color name: Oxford Blue.
Questions
- What color is #1B1C39?
- #1B1C39 is a very dark, desaturated blue, closest to the named color Nightwalker. It belongs to the black family of colors.
- What is the RGB value of #1B1C39?
- The RGB value is 27, 28, 57: 27 red, 28 green and 57 blue on a 0 to 255 scale.
- What is the complementary color of #1B1C39?
- The complementary color is #39381B, found by rotating the hue 180° on the color wheel.
- Is black or white text better on #1B1C39?
- White text. Black text has a contrast ratio of 1.27:1 and white text 16.51:1. WCAG asks for at least 4.5:1 for normal text.