#83151B
Closest named color: Dark Red (#8B0000). oklch(39.6% 0.144 24.6), rgb(131, 21, 27).
Aa
White text reads best on this color (10.05:1).
About this color
#83151B is a dark, vivid red. In OKLCH its lightness is 40%, its chroma 0.144 and its hue 25°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Red (#8B0000), ΔE 0.024 away. White text reads best on it, at 10.05:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | vivid (0.144) |
| Temperature | warm |
| Nearest name | Dark Red (#8B0000) |
| Black text | 2.08:1 |
| White text | 10.05:1 |
Values
| HEX | #83151B |
| RGB | rgb(131, 21, 27) |
| HSL | hsl(357, 72%, 30%) |
| OKLCH | oklch(39.6% 0.144 24.6) |
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 #83151B | 10.05:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #83151B | 2.08:1 | Fails | Lc 12.1 | Not readable |
| #83151B text on white | 10.05:1 | AAA | Lc 91.8 | Preferred for body text |
| #83151B text on black | 2.08:1 | Fails | Lc -10.6 | 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
#FFF2F1
oklch(97.1% 0.014 22.8)
-
Step 100
100
#FEE2E0
oklch(93.5% 0.031 22.6)
-
Step 200
200
#FFCBC6
oklch(88.6% 0.06 24.7)
-
Step 300
300
#FFA59E
oklch(80.9% 0.108 24.6)
-
Step 400
400
#FA6E69
oklch(70.8% 0.173 24.5)
-
Step 500
500
#F2383F
oklch(63.1% 0.221 24.6)
-
Step 600
600
#D80025
oklch(55.6% 0.225 24.6)
-
Step 700
700
#B7001E
oklch(49.1% 0.199 24.5)
-
Step 800
800
#970017
oklch(42.6% 0.173 24.5)
-
Step 900
900 (this color)
#83151B
oklch(39.6% 0.144 24.6)
-
Step 950
950
#4A0C0E
oklch(27.1% 0.092 24.4)
#83151B 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) | #38331A | 0.158 |
| Deuteranopia (no green cones) | #534A16 | 0.143 |
| Tritanopia (no blue cones) | #910019 | 0.030 |
| Achromatopsia (no color) | #424242 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #83151B
#83151B
oklch(39.6% 0.144 24.6)
- #005158
#005158
oklch(39.7% 0.068 204.9)
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 #83151B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Red #8B0000 ΔE 0.024
- Maroon #800000 ΔE 0.026
- Brick Red #8F1402 ΔE 0.031
- Wine Red #7B0323 ΔE 0.032
- Blood #770001 ΔE 0.041
- Bordeaux #7B002C ΔE 0.042
- Red Wine #8C0034 ΔE 0.044
- Blood Red #980002 ΔE 0.045
Use #83151B 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.