#991901
Closest named color: Deep Red (#9A0200). oklch(44.1% 0.165 32.2), rgb(153, 25, 1).
Aa
White text reads best on this color (8.42:1).
About this color
#991901 is a dark, vivid red. In OKLCH its lightness is 44%, its chroma 0.165 and its hue 32°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Red (#9A0200), ΔE 0.016 away. White text reads best on it, at 8.42:1.
| Hue family | Reds |
| Lightness | dark (44%) |
| Chroma | vivid (0.165) |
| Temperature | warm |
| Nearest name | Deep Red (#9A0200) |
| Black text | 2.49:1 |
| White text | 8.42:1 |
Values
| HEX | #991901 |
| RGB | rgb(153, 25, 1) |
| HSL | hsl(9, 99%, 30%) |
| OKLCH | oklch(44.1% 0.165 32.2) |
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 #991901 | 8.42:1 | AAA | Lc -92.0 | Preferred for body text |
| Black text on #991901 | 2.49:1 | Fails | Lc 16.7 | Dividers and decoration only |
| #991901 text on white | 8.42:1 | AAA | Lc 87.3 | Fine for body text |
| #991901 text on black | 2.49:1 | Fails | Lc -14.8 | 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
#FEF3F0
oklch(97.2% 0.013 35.7)
-
Step 100
100
#FCE4DE
oklch(93.7% 0.028 34.3)
-
Step 200
200
#FBCDC3
oklch(88.5% 0.054 32.4)
-
Step 300
300
#F8AA99
oklch(80.9% 0.096 32.8)
-
Step 400
400
#F17760
oklch(70.6% 0.155 32.2)
-
Step 500
500
#E84C31
oklch(63.1% 0.197 32.2)
-
Step 600
600
#D22500
oklch(55.6% 0.21 32.2)
-
Step 700
700
#B21E00
oklch(49.2% 0.185 32.2)
-
Step 800
800 (this color)
#991901
oklch(44.1% 0.165 32.2)
-
Step 900
900
#771B0B
oklch(37.7% 0.129 32.2)
-
Step 950
950
#461209
oklch(26.9% 0.082 32.2)
#991901 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) | #453B00 | 0.175 |
| Deuteranopia (no green cones) | #635700 | 0.157 |
| Tritanopia (no blue cones) | #A90017 | 0.038 |
| Achromatopsia (no color) | #4D4D4D | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #991901
#991901
oklch(44.1% 0.165 32.2)
- #005D6B
#005D6B
oklch(43.9% 0.077 212.4)
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 #991901, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Red #9A0200 ΔE 0.016
- Blood Red #980002 ΔE 0.019
- Burnt Red #9F2305 ΔE 0.020
- Carmine #9D0216 ΔE 0.024
- Brick Red #8F1402 ΔE 0.024
- Brown Red #922B05 ΔE 0.025
- Auburn #9B2226 ΔE 0.027
- Red Brown #8B2E16 ΔE 0.035
Use #991901 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.