#991E31
Closest named color: Auburn (#9B2226). oklch(44.9% 0.157 18.6), rgb(153, 30, 49).
Aa
White text reads best on this color (8.12:1).
About this color
#991E31 is a dark, vivid red. In OKLCH its lightness is 45%, its chroma 0.157 and its hue 19°. Its hue sits on the warm side of the wheel. The nearest named color is Auburn (#9B2226), ΔE 0.017 away. White text reads best on it, at 8.12:1.
| Hue family | Reds |
| Lightness | dark (45%) |
| Chroma | vivid (0.157) |
| Temperature | warm |
| Nearest name | Auburn (#9B2226) |
| Black text | 2.58:1 |
| White text | 8.12:1 |
Values
| HEX | #991E31 |
| RGB | rgb(153, 30, 49) |
| HSL | hsl(351, 67%, 36%) |
| OKLCH | oklch(44.9% 0.157 18.6) |
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 #991E31 | 8.12:1 | AAA | Lc -91.4 | Preferred for body text |
| Black text on #991E31 | 2.58:1 | Fails | Lc 17.3 | Dividers and decoration only |
| #991E31 text on white | 8.12:1 | AAA | Lc 86.7 | Fine for body text |
| #991E31 text on black | 2.58:1 | Fails | Lc -15.4 | Dividers and decoration only |
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
#FBE3E3
oklch(93.5% 0.026 17.6)
-
Step 200
200
#F9CCCC
oklch(88.4% 0.051 18.2)
-
Step 300
300
#F6A9AA
oklch(80.9% 0.091 18.4)
-
Step 400
400
#EE777C
oklch(70.8% 0.147 18.9)
-
Step 500
500
#E44C5B
oklch(63.1% 0.187 18.8)
-
Step 600
600
#D02242
oklch(55.6% 0.205 18.4)
-
Step 700
700
#B30F33
oklch(49.1% 0.19 18.7)
-
Step 800
800 (this color)
#991E31
oklch(44.9% 0.157 18.6)
-
Step 900
900
#751C27
oklch(37.8% 0.122 18.7)
-
Step 950
950
#451217
oklch(27% 0.078 18.5)
#991E31 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) | #433F31 | 0.174 |
| Deuteranopia (no green cones) | #62592D | 0.159 |
| Tritanopia (no blue cones) | #A80026 | 0.032 |
| Achromatopsia (no color) | #505050 | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #991E31
#991E31
oklch(44.9% 0.157 18.6)
- #006265
#006265
oklch(45% 0.077 198.5)
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 #991E31, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Auburn #9B2226 ΔE 0.017
- Cranberry #9E003A ΔE 0.030
- Carmine #9D0216 ΔE 0.030
- Brown #A52A2A ΔE 0.037
- Rouge #AB1239 ΔE 0.038
- Deep Red #9A0200 ΔE 0.041
- Blood Red #980002 ΔE 0.041
- Burnt Red #9F2305 ΔE 0.043
Use #991E31 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.