#91010F
Closest named color: Dark Red (#8B0000). oklch(41.4% 0.168 26.4), rgb(145, 1, 15).
Aa
White text reads best on this color (9.48:1).
About this color
#91010F is a dark, vivid red. In OKLCH its lightness is 41%, its chroma 0.168 and its hue 26°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Red (#8B0000), ΔE 0.016 away. White text reads best on it, at 9.48:1.
| Hue family | Reds |
| Lightness | dark (41%) |
| Chroma | vivid (0.168) |
| Temperature | warm |
| Nearest name | Dark Red (#8B0000) |
| Black text | 2.21:1 |
| White text | 9.48:1 |
Values
| HEX | #91010F |
| RGB | rgb(145, 1, 15) |
| HSL | hsl(354, 99%, 29%) |
| OKLCH | oklch(41.4% 0.168 26.4) |
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 #91010F | 9.48:1 | AAA | Lc -94.0 | Preferred for body text |
| Black text on #91010F | 2.21:1 | Fails | Lc 14.5 | Not readable |
| #91010F text on white | 9.48:1 | AAA | Lc 89.5 | Fine for body text |
| #91010F text on black | 2.21:1 | Fails | Lc -12.8 | 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 800.
-
Step 50
50
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FCE3E0
oklch(93.5% 0.028 25.9)
-
Step 200
200
#FBCCC6
oklch(88.4% 0.054 26.7)
-
Step 300
300
#FAA89F
oklch(80.9% 0.099 26.3)
-
Step 400
400
#F3756B
oklch(70.8% 0.157 26.4)
-
Step 500
500
#EA4742
oklch(63.1% 0.201 26.5)
-
Step 600
600
#D51521
oklch(55.5% 0.218 26.4)
-
Step 700
700
#B70015
oklch(49% 0.2 26.4)
-
Step 800
800 (this color)
#91010F
oklch(41.4% 0.168 26.4)
-
Step 900
900
#781818
oklch(37.7% 0.131 26.2)
-
Step 950
950
#47110F
oklch(27.1% 0.083 26.4)
#91010F 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) | #3A330D | 0.185 |
| Deuteranopia (no green cones) | #5A5004 | 0.168 |
| Tritanopia (no blue cones) | #A1000A | 0.035 |
| Achromatopsia (no color) | #464646 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91010F
#91010F
oklch(41.4% 0.168 26.4)
- #00565E
#00565E
oklch(41.4% 0.071 205.7)
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 #91010F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Red #8B0000 ΔE 0.016
- Blood Red #980002 ΔE 0.017
- Brick Red #8F1402 ΔE 0.017
- Deep Red #9A0200 ΔE 0.022
- Carmine #9D0216 ΔE 0.027
- Maroon #800000 ΔE 0.040
- Auburn #9B2226 ΔE 0.042
- Red Wine #8C0034 ΔE 0.046
Use #91010F 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.