#870B0B
Closest named color: Dark Red (#8B0000). oklch(39.7% 0.155 28.2), rgb(135, 11, 11).
Aa
White text reads best on this color (10.08:1).
About this color
#870B0B is a dark, vivid red. In OKLCH its lightness is 40%, its chroma 0.155 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Red (#8B0000), ΔE 0.010 away. White text reads best on it, at 10.08:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | vivid (0.155) |
| Temperature | warm |
| Nearest name | Dark Red (#8B0000) |
| Black text | 2.08:1 |
| White text | 10.08:1 |
Values
| HEX | #870B0B |
| RGB | rgb(135, 11, 11) |
| HSL | hsl(0, 85%, 29%) |
| OKLCH | oklch(39.7% 0.155 28.2) |
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 #870B0B | 10.08:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #870B0B | 2.08:1 | Fails | Lc 12.5 | Not readable |
| #870B0B text on white | 10.08:1 | AAA | Lc 91.4 | Preferred for body text |
| #870B0B text on black | 2.08:1 | Fails | Lc -10.9 | 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
#FFCBC3
oklch(88.6% 0.06 28.4)
-
Step 300
300
#FFA599
oklch(80.8% 0.109 28)
-
Step 400
400
#FF695B
oklch(70.6% 0.186 28.1)
-
Step 500
500
#F92A26
oklch(63.2% 0.238 28.1)
-
Step 600
600
#D9000D
oklch(55.6% 0.228 28.2)
-
Step 700
700
#B80009
oklch(49.2% 0.201 28.2)
-
Step 800
800
#980006
oklch(42.7% 0.175 28.2)
-
Step 900
900 (this color)
#870B0B
oklch(39.7% 0.155 28.2)
-
Step 950
950
#4C0806
oklch(27% 0.099 28.3)
#870B0B 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 | 0.170 |
| Deuteranopia (no green cones) | #554B02 | 0.153 |
| Tritanopia (no blue cones) | #96000E | 0.032 |
| Achromatopsia (no color) | #424242 | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #870B0B
#870B0B
oklch(39.7% 0.155 28.2)
- #00515A
#00515A
oklch(39.8% 0.068 207.7)
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 #870B0B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Red #8B0000 ΔE 0.010
- Maroon #800000 ΔE 0.021
- Brick Red #8F1402 ΔE 0.023
- Blood Red #980002 ΔE 0.036
- Blood #770001 ΔE 0.040
- Wine Red #7B0323 ΔE 0.040
- Deep Red #9A0200 ΔE 0.041
- Carmine #9D0216 ΔE 0.048
Use #870B0B 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.