#231F0B color
The hex color #231F0B is a very dark, moderate yellow.
In the RGB color model it is made of 13.7% red, 12.2% green and 4.3% blue (35, 31, 11).
Its hue angle is 50°, with 52% saturation and 9% lightness. For print, the CMYK equivalent is 0% cyan, 11% magenta, 69% yellow and 86% black.
The closest named color is Noir Mystique (#1F180A), a difference of 4.7 ΔE, a small difference.
White text is the more readable choice on this background (contrast 16.51:1).
#231F0B color codes
| HEX | #231F0B | |
|---|---|---|
| RGB | rgb(35, 31, 11) | |
| RGB percent | rgb(13.7%, 12.2%, 4.3%) | |
| HSL | hsl(50, 52%, 9%) | |
| HSV / HSB | hsv(50, 69%, 14%) | |
| CMYK | cmyk(0%, 11%, 69%, 86%) | |
| CIE LAB | lab(11.7, -1.57, 12.82) | |
| CIE LCH | lch(11.7, 12.92, 97) | |
| CIE XYZ | xyz(1.244, 1.362, 0.514) | |
| Decimal | 2301707 | |
| Short hex | None (no 3-digit form) |
Color harmonies
Colors that go with #231F0B, 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 #231F0B | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 1.27:1 | Fail | Fail | Fail |
| Sample text | 16.51:1 | Pass | Pass | Pass |
| #231F0B 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 #231F0B looks to people with the most common types of color vision deficiency.
#221e09Protanopia
no red cones#23200cDeuteranopia
no green cones#261c1aTritanopia
no blue cones#1f1f1fAchromatopsia
no color vision
CSS examples
.background { background-color: #231f0b; }
.text { color: #231f0b; }
.border { border: 2px solid #231f0b; }
.transparent { background-color: rgb(35 31 11 / 50%); }
.gradient { background: linear-gradient(to right, #231f0b, #1b230b); }
Similar colors
#1f180aNoir Mystique#1b150dSoulless#1e231cUnderworld#393227Creole#2b2e26Marshland#372a05Secret Passage#271b10Burnt Coffee#191916Twilight Zone
Closest common color name: Off Black.
Questions
- What color is #231F0B?
- #231F0B is a very dark, moderate yellow, closest to the named color Noir Mystique. It belongs to the black family of colors.
- What is the RGB value of #231F0B?
- The RGB value is 35, 31, 11: 35 red, 31 green and 11 blue on a 0 to 255 scale.
- What is the complementary color of #231F0B?
- The complementary color is #0B0F23, found by rotating the hue 180° on the color wheel.
- Is black or white text better on #231F0B?
- 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.