#870C04
Closest named color: Dark Red (#8B0000). oklch(39.7% 0.155 29.9), rgb(135, 12, 4).
Aa
White text reads best on this color (10.07:1).
About this color
#870C04 is a dark, vivid red. In OKLCH its lightness is 40%, its chroma 0.155 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Red (#8B0000), ΔE 0.009 away. White text reads best on it, at 10.07:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | vivid (0.155) |
| Temperature | warm |
| Nearest name | Dark Red (#8B0000) |
| Black text | 2.08:1 |
| White text | 10.07:1 |
Values
| HEX | #870C04 |
| RGB | rgb(135, 12, 4) |
| HSL | hsl(4, 94%, 27%) |
| OKLCH | oklch(39.7% 0.155 29.9) |
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 #870C04 | 10.07:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #870C04 | 2.08:1 | Fails | Lc 12.5 | Not readable |
| #870C04 text on white | 10.07:1 | AAA | Lc 91.4 | Preferred for body text |
| #870C04 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
#FFE2DD
oklch(93.5% 0.033 29.4)
-
Step 200
200
#FFCBC2
oklch(88.5% 0.061 29.7)
-
Step 300
300
#FFA697
oklch(81% 0.108 30.1)
-
Step 400
400
#FF6A57
oklch(70.7% 0.185 29.7)
-
Step 500
500
#F92B1B
oklch(63.2% 0.239 29.8)
-
Step 600
600
#D70E00
oklch(55.5% 0.223 29.9)
-
Step 700
700
#B60A00
oklch(49% 0.197 29.9)
-
Step 800
800
#970600
oklch(42.7% 0.172 29.8)
-
Step 900
900 (this color)
#870C04
oklch(39.7% 0.155 29.9)
-
Step 950
950
#4C0904
oklch(27.1% 0.098 30.2)
#870C04 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) | #393101 | 0.168 |
| Deuteranopia (no green cones) | #554B00 | 0.151 |
| Tritanopia (no blue cones) | #96000D | 0.033 |
| Achromatopsia (no color) | #424242 | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #870C04
#870C04
oklch(39.7% 0.155 29.9)
- #00515B
#00515B
oklch(39.8% 0.069 209.1)
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 #870C04, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Red #8B0000 ΔE 0.009
- Maroon #800000 ΔE 0.020
- Brick Red #8F1402 ΔE 0.021
- Blood Red #980002 ΔE 0.036
- Deep Red #9A0200 ΔE 0.040
- Blood #770001 ΔE 0.041
- Wine Red #7B0323 ΔE 0.044
- Red Brown #8B2E16 ΔE 0.048
Use #870C04 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.