#831105
Closest named color: Maroon (#800000). oklch(39.2% 0.149 30.5), rgb(131, 17, 5).
Aa
White text reads best on this color (10.25:1).
About this color
#831105 is a dark, vivid red. In OKLCH its lightness is 39%, its chroma 0.149 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Maroon (#800000), ΔE 0.017 away. White text reads best on it, at 10.25:1.
| Hue family | Reds |
| Lightness | dark (39%) |
| Chroma | vivid (0.149) |
| Temperature | warm |
| Nearest name | Maroon (#800000) |
| Black text | 2.04:1 |
| White text | 10.25:1 |
Values
| HEX | #831105 |
| RGB | rgb(131, 17, 5) |
| HSL | hsl(6, 93%, 27%) |
| OKLCH | oklch(39.2% 0.149 30.5) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #831105 | 10.25:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #831105 | 2.04:1 | Fails | Lc 11.9 | Not readable |
| #831105 text on white | 10.25:1 | AAA | Lc 92.1 | Preferred for body text |
| #831105 text on black | 2.04:1 | Fails | Lc -10.3 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 900.
-
Step 50
50
#FFF2F0
oklch(97.1% 0.014 28)
-
Step 100
100
#FFE2DD
oklch(93.5% 0.033 29.4)
-
Step 200
200
#FFCBC1
oklch(88.5% 0.061 30.9)
-
Step 300
300
#FFA696
oklch(80.9% 0.109 30.7)
-
Step 400
400
#FC6D58
oklch(70.7% 0.179 30.5)
-
Step 500
500
#F53620
oklch(63.2% 0.228 30.6)
-
Step 600
600
#D61700
oklch(55.6% 0.22 30.5)
-
Step 700
700
#B51200
oklch(49.1% 0.194 30.6)
-
Step 800
800
#960D00
oklch(42.8% 0.169 30.6)
-
Step 900
900 (this color)
#831105
oklch(39.2% 0.149 30.5)
-
Step 950
950
#4A0C05
oklch(27% 0.093 30.9)
#831105 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #383101 | 0.162 |
| Deuteranopia (no green cones) | #544900 | 0.143 |
| Tritanopia (no blue cones) | #910011 | 0.032 |
| Achromatopsia (no color) | #414141 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #831105
#831105
oklch(39.2% 0.149 30.5)
- #004F5A
#004F5A
oklch(39.2% 0.068 210.7)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #831105, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Maroon #800000 ΔE 0.017
- Dark Red #8B0000 ΔE 0.018
- Brick Red #8F1402 ΔE 0.028
- Blood #770001 ΔE 0.035
- Wine Red #7B0323 ΔE 0.041
- Chestnut #742802 ΔE 0.042
- Blood Red #980002 ΔE 0.044
- Reddy Brown #6E1005 ΔE 0.048
Use #831105 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.