#870307
Closest named color: Dark Red (#8B0000). oklch(39.3% 0.159 28), rgb(135, 3, 7).
Aa
White text reads best on this color (10.26:1).
About this color
#870307 is a dark, vivid red. In OKLCH its lightness is 39%, its chroma 0.159 and its hue 28°. 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 10.26:1.
| Hue family | Reds |
| Lightness | dark (39%) |
| Chroma | vivid (0.159) |
| Temperature | warm |
| Nearest name | Dark Red (#8B0000) |
| Black text | 2.04:1 |
| White text | 10.26:1 |
Values
| HEX | #870307 |
| RGB | rgb(135, 3, 7) |
| HSL | hsl(358, 96%, 27%) |
| OKLCH | oklch(39.3% 0.159 28) |
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 #870307 | 10.26:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #870307 | 2.04:1 | Fails | Lc 12.4 | Not readable |
| #870307 text on white | 10.26:1 | AAA | Lc 91.5 | Preferred for body text |
| #870307 text on black | 2.04:1 | Fails | Lc -10.8 | 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
#FB2322
oklch(63.1% 0.244 28.1)
-
Step 600
600
#D9000F
oklch(55.6% 0.227 28)
-
Step 700
700
#B8000A
oklch(49.2% 0.201 28.1)
-
Step 800
800
#980007
oklch(42.7% 0.175 28)
-
Step 900
900 (this color)
#870307
oklch(39.3% 0.159 28)
-
Step 950
950
#4C0706
oklch(26.9% 0.1 27.9)
#870307 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) | #362F04 | 0.175 |
| Deuteranopia (no green cones) | #544A00 | 0.156 |
| Tritanopia (no blue cones) | #960008 | 0.033 |
| Achromatopsia (no color) | #414141 | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #870307
#870307
oklch(39.3% 0.159 28)
- #005059
#005059
oklch(39.4% 0.068 207.8)
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 #870307, 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 0.017
- Brick Red #8F1402 ΔE 0.026
- Blood Red #980002 ΔE 0.037
- Blood #770001 ΔE 0.038
- Wine Red #7B0323 ΔE 0.039
- Deep Red #9A0200 ΔE 0.042
- Carmine #9D0216 ΔE 0.050
Use #870307 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.