#901F07
Closest named color: Brick Red (#8F1402). oklch(42.8% 0.152 32.9), rgb(144, 31, 7).
Aa
White text reads best on this color (8.80:1).
About this color
#901F07 is a dark, vivid red. In OKLCH its lightness is 43%, its chroma 0.152 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Brick Red (#8F1402), ΔE 0.013 away. White text reads best on it, at 8.80:1.
| Hue family | Reds |
| Lightness | dark (43%) |
| Chroma | vivid (0.152) |
| Temperature | warm |
| Nearest name | Brick Red (#8F1402) |
| Black text | 2.38:1 |
| White text | 8.80:1 |
Values
| HEX | #901F07 |
| RGB | rgb(144, 31, 7) |
| HSL | hsl(11, 91%, 30%) |
| OKLCH | oklch(42.8% 0.152 32.9) |
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 #901F07 | 8.80:1 | AAA | Lc -93.3 | Preferred for body text |
| Black text on #901F07 | 2.38:1 | Fails | Lc 15.3 | Dividers and decoration only |
| #901F07 text on white | 8.80:1 | AAA | Lc 88.7 | Fine for body text |
| #901F07 text on black | 2.38:1 | Fails | Lc -13.5 | 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
#FDF3F0
oklch(97.1% 0.012 37.4)
-
Step 100
100
#FBE4DF
oklch(93.6% 0.026 32.2)
-
Step 200
200
#F8CEC5
oklch(88.5% 0.049 32.1)
-
Step 300
300
#F4AC9C
oklch(80.9% 0.088 33)
-
Step 400
400
#EB7C65
oklch(70.7% 0.142 32.9)
-
Step 500
500
#E25439
oklch(63.1% 0.182 32.8)
-
Step 600
600
#CD300F
oklch(55.6% 0.197 32.8)
-
Step 700
700
#B02200
oklch(49.1% 0.181 33)
-
Step 800
800 (this color)
#901F07
oklch(42.8% 0.152 32.9)
-
Step 900
900
#732111
oklch(37.6% 0.118 33)
-
Step 950
950
#44150C
oklch(27% 0.075 32.8)
#901F07 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) | #433A02 | 0.161 |
| Deuteranopia (no green cones) | #5F5300 | 0.143 |
| Tritanopia (no blue cones) | #9F001C | 0.041 |
| Achromatopsia (no color) | #4A4A4A | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #901F07
#901F07
oklch(42.8% 0.152 32.9)
- #005A68
#005A68
oklch(42.9% 0.075 212.8)
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 #901F07, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick Red #8F1402 ΔE 0.013
- Brown Red #922B05 ΔE 0.021
- Red Brown #8B2E16 ΔE 0.023
- Blood Red #980002 ΔE 0.026
- Deep Red #9A0200 ΔE 0.026
- Rust Brown #8B3103 ΔE 0.031
- Dark Red #8B0000 ΔE 0.033
- Burnt Red #9F2305 ΔE 0.034
Use #901F07 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.