#850B1F
Closest named color: Dark Red (#8B0000). oklch(39.5% 0.151 21.2), rgb(133, 11, 31).
Aa
White text reads best on this color (10.16:1).
About this color
#850B1F is a dark, vivid red. In OKLCH its lightness is 40%, its chroma 0.151 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Red (#8B0000), ΔE 0.026 away. White text reads best on it, at 10.16:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | vivid (0.151) |
| Temperature | warm |
| Nearest name | Dark Red (#8B0000) |
| Black text | 2.06:1 |
| White text | 10.16:1 |
Values
| HEX | #850B1F |
| RGB | rgb(133, 11, 31) |
| HSL | hsl(350, 85%, 28%) |
| OKLCH | oklch(39.5% 0.151 21.2) |
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 #850B1F | 10.16:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #850B1F | 2.06:1 | Fails | Lc 12.2 | Not readable |
| #850B1F text on white | 10.16:1 | AAA | Lc 91.7 | Preferred for body text |
| #850B1F text on black | 2.06:1 | Fails | Lc -10.7 | 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
#FFE2E0
oklch(93.6% 0.032 22.5)
-
Step 200
200
#FFCAC8
oklch(88.5% 0.061 20.9)
-
Step 300
300
#FFA4A2
oklch(80.9% 0.108 21.1)
-
Step 400
400
#FD696D
oklch(70.7% 0.181 21.3)
-
Step 500
500
#F62B46
oklch(63% 0.232 21.2)
-
Step 600
600
#D70033
oklch(55.6% 0.224 21.2)
-
Step 700
700
#B6002A
oklch(49.1% 0.197 21.1)
-
Step 800
800
#970021
oklch(42.7% 0.172 21.2)
-
Step 900
900 (this color)
#850B1F
oklch(39.5% 0.151 21.2)
-
Step 950
950
#4B0910
oklch(27% 0.096 21.5)
#850B1F 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) | #36311F | 0.167 |
| Deuteranopia (no green cones) | #534A1B | 0.152 |
| Tritanopia (no blue cones) | #930015 | 0.031 |
| Achromatopsia (no color) | #414141 | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #850B1F
#850B1F
oklch(39.5% 0.151 21.2)
- #005155
#005155
oklch(39.5% 0.067 200.6)
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 #850B1F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Red #8B0000 ΔE 0.026
- Wine Red #7B0323 ΔE 0.027
- Maroon #800000 ΔE 0.028
- Red Wine #8C0034 ΔE 0.034
- Bordeaux #7B002C ΔE 0.035
- Brick Red #8F1402 ΔE 0.036
- Blood #770001 ΔE 0.043
- Blood Red #980002 ΔE 0.045
Use #850B1F 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.