#83100B
Closest named color: Maroon (#800000). oklch(39.2% 0.149 29), rgb(131, 16, 11).
Aa
White text reads best on this color (10.27:1).
About this color
#83100B is a dark, vivid red. In OKLCH its lightness is 39%, its chroma 0.149 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Maroon (#800000), ΔE 0.016 away. White text reads best on it, at 10.27:1.
| Hue family | Reds |
| Lightness | dark (39%) |
| Chroma | vivid (0.149) |
| Temperature | warm |
| Nearest name | Maroon (#800000) |
| Black text | 2.04:1 |
| White text | 10.27:1 |
Values
| HEX | #83100B |
| RGB | rgb(131, 16, 11) |
| HSL | hsl(3, 85%, 28%) |
| OKLCH | oklch(39.2% 0.149 29) |
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 #83100B | 10.27:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #83100B | 2.04:1 | Fails | Lc 11.9 | Not readable |
| #83100B text on white | 10.27:1 | AAA | Lc 92.1 | Preferred for body text |
| #83100B 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
#FFE2DE
oklch(93.5% 0.033 27.1)
-
Step 200
200
#FFCBC2
oklch(88.5% 0.061 29.7)
-
Step 300
300
#FFA698
oklch(81% 0.108 29.4)
-
Step 400
400
#FC6D5C
oklch(70.7% 0.178 29.1)
-
Step 500
500
#F53429
oklch(63.1% 0.229 28.9)
-
Step 600
600
#D90004
oklch(55.6% 0.228 28.9)
-
Step 700
700
#B80002
oklch(49.2% 0.202 29)
-
Step 800
800
#980002
oklch(42.7% 0.175 28.9)
-
Step 900
900 (this color)
#83100B
oklch(39.2% 0.149 29)
-
Step 950
950
#4A0B07
oklch(26.9% 0.094 29)
#83100B 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) | #383108 | 0.161 |
| Deuteranopia (no green cones) | #534903 | 0.145 |
| Tritanopia (no blue cones) | #910011 | 0.030 |
| Achromatopsia (no color) | #414141 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #83100B
#83100B
oklch(39.2% 0.149 29)
- #004F59
#004F59
oklch(39.2% 0.068 209.4)
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 #83100B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Maroon #800000 ΔE 0.016
- Dark Red #8B0000 ΔE 0.017
- Brick Red #8F1402 ΔE 0.029
- Blood #770001 ΔE 0.034
- Wine Red #7B0323 ΔE 0.037
- Blood Red #980002 ΔE 0.044
- Chestnut #742802 ΔE 0.044
- Reddy Brown #6E1005 ΔE 0.048
Use #83100B 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.