#870109
Closest named color: Dark Red (#8B0000). oklch(39.2% 0.159 27.4), rgb(135, 1, 9).
Aa
White text reads best on this color (10.30:1).
About this color
#870109 is a dark, vivid red. In OKLCH its lightness is 39%, its chroma 0.159 and its hue 27°. 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 10.30:1.
| Hue family | Reds |
| Lightness | dark (39%) |
| Chroma | vivid (0.159) |
| Temperature | warm |
| Nearest name | Dark Red (#8B0000) |
| Black text | 2.03:1 |
| White text | 10.30:1 |
Values
| HEX | #870109 |
| RGB | rgb(135, 1, 9) |
| HSL | hsl(356, 99%, 27%) |
| OKLCH | oklch(39.2% 0.159 27.4) |
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 #870109 | 10.30:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #870109 | 2.03:1 | Fails | Lc 12.4 | Not readable |
| #870109 text on white | 10.30:1 | AAA | Lc 91.5 | Preferred for body text |
| #870109 text on black | 2.03:1 | 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
#FFA59A
oklch(80.9% 0.109 27.3)
-
Step 400
400
#FF695D
oklch(70.7% 0.185 27.4)
-
Step 500
500
#FB2126
oklch(63.1% 0.244 27.3)
-
Step 600
600
#D90015
oklch(55.7% 0.227 27.3)
-
Step 700
700
#B70010
oklch(49% 0.2 27.3)
-
Step 800
800
#98000B
oklch(42.7% 0.174 27.3)
-
Step 900
900 (this color)
#870109
oklch(39.2% 0.159 27.4)
-
Step 950
950
#4D0606
oklch(27% 0.102 27.5)
#870109 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) | #362F06 | 0.176 |
| Deuteranopia (no green cones) | #544A00 | 0.158 |
| Tritanopia (no blue cones) | #960007 | 0.033 |
| Achromatopsia (no color) | #404040 | 0.161 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #870109
#870109
oklch(39.2% 0.159 27.4)
- #004F58
#004F58
oklch(39.1% 0.067 207.9)
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 #870109, 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 0.017
- Brick Red #8F1402 ΔE 0.028
- Blood #770001 ΔE 0.037
- Wine Red #7B0323 ΔE 0.038
- Blood Red #980002 ΔE 0.038
- Deep Red #9A0200 ΔE 0.043
- Bordeaux #7B002C ΔE 0.049
Use #870109 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.