#991828
Closest named color: Auburn (#9B2226). oklch(44.3% 0.162 21.5), rgb(153, 24, 40).
Aa
White text reads best on this color (8.34:1).
About this color
#991828 is a dark, vivid red. In OKLCH its lightness is 44%, its chroma 0.162 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Auburn (#9B2226), ΔE 0.015 away. White text reads best on it, at 8.34:1.
| Hue family | Reds |
| Lightness | dark (44%) |
| Chroma | vivid (0.162) |
| Temperature | warm |
| Nearest name | Auburn (#9B2226) |
| Black text | 2.51:1 |
| White text | 8.34:1 |
Values
| HEX | #991828 |
| RGB | rgb(153, 24, 40) |
| HSL | hsl(353, 73%, 35%) |
| OKLCH | oklch(44.3% 0.162 21.5) |
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 #991828 | 8.34:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #991828 | 2.51:1 | Fails | Lc 16.9 | Dividers and decoration only |
| #991828 text on white | 8.34:1 | AAA | Lc 87.1 | Fine for body text |
| #991828 text on black | 2.51:1 | Fails | Lc -15.0 | 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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FCE3E2
oklch(93.6% 0.028 20.4)
-
Step 200
200
#FACCCA
oklch(88.4% 0.052 21.1)
-
Step 300
300
#F8A8A6
oklch(80.9% 0.095 20.9)
-
Step 400
400
#F07576
oklch(70.6% 0.152 21.2)
-
Step 500
500
#E74953
oklch(63.1% 0.194 21.2)
-
Step 600
600
#D21C37
oklch(55.5% 0.21 21.4)
-
Step 700
700
#B6042A
oklch(49.2% 0.196 21.4)
-
Step 800
800 (this color)
#991828
oklch(44.3% 0.162 21.5)
-
Step 900
900
#761A22
oklch(37.7% 0.126 21.3)
-
Step 950
950
#461114
oklch(27% 0.081 21.3)
#991828 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) | #423C27 | 0.178 |
| Deuteranopia (no green cones) | #615723 | 0.162 |
| Tritanopia (no blue cones) | #A90020 | 0.033 |
| Achromatopsia (no color) | #4E4E4E | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #991828
#991828
oklch(44.3% 0.162 21.5)
- #005F65
#005F65
oklch(44.2% 0.075 202.3)
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 #991828, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Auburn #9B2226 ΔE 0.015
- Carmine #9D0216 ΔE 0.019
- Deep Red #9A0200 ΔE 0.030
- Blood Red #980002 ΔE 0.030
- Cranberry #9E003A ΔE 0.034
- Burnt Red #9F2305 ΔE 0.038
- Brick Red #8F1402 ΔE 0.038
- Brown #A52A2A ΔE 0.039
Use #991828 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.