#831621
Closest named color: Dark Red (#8B0000). oklch(39.8% 0.143 22.1), rgb(131, 22, 33).
Aa
White text reads best on this color (9.99:1).
About this color
#831621 is a dark, vivid red. In OKLCH its lightness is 40%, its chroma 0.143 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Red (#8B0000), ΔE 0.029 away. White text reads best on it, at 9.99:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | vivid (0.143) |
| Temperature | warm |
| Nearest name | Dark Red (#8B0000) |
| Black text | 2.10:1 |
| White text | 9.99:1 |
Values
| HEX | #831621 |
| RGB | rgb(131, 22, 33) |
| HSL | hsl(354, 71%, 30%) |
| OKLCH | oklch(39.8% 0.143 22.1) |
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 #831621 | 9.99:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #831621 | 2.10:1 | Fails | Lc 12.3 | Not readable |
| #831621 text on white | 9.99:1 | AAA | Lc 91.7 | Preferred for body text |
| #831621 text on black | 2.10:1 | Fails | Lc -10.7 | 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 900.
-
Step 50
50
#FFF2F1
oklch(97.1% 0.014 22.8)
-
Step 100
100
#FEE2E1
oklch(93.5% 0.031 20.2)
-
Step 200
200
#FECAC8
oklch(88.4% 0.059 20.9)
-
Step 300
300
#FEA5A1
oklch(80.9% 0.106 22.5)
-
Step 400
400
#F96E6F
oklch(70.8% 0.171 22)
-
Step 500
500
#F13848
oklch(63.1% 0.219 22.1)
-
Step 600
600
#D70030
oklch(55.5% 0.224 22)
-
Step 700
700
#B60027
oklch(49% 0.197 22)
-
Step 800
800
#97001E
oklch(42.7% 0.172 22.2)
-
Step 900
900 (this color)
#831621
oklch(39.8% 0.143 22.1)
-
Step 950
950
#490C11
oklch(26.9% 0.09 21.7)
#831621 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) | #383420 | 0.157 |
| Deuteranopia (no green cones) | #534B1D | 0.144 |
| Tritanopia (no blue cones) | #91001B | 0.030 |
| Achromatopsia (no color) | #424242 | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #831621
#831621
oklch(39.8% 0.143 22.1)
- #005257
#005257
oklch(39.9% 0.068 201.9)
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 #831621, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Red #8B0000 ΔE 0.029
- Wine Red #7B0323 ΔE 0.030
- Maroon #800000 ΔE 0.031
- Brick Red #8F1402 ΔE 0.035
- Red Wine #8C0034 ΔE 0.038
- Bordeaux #7B002C ΔE 0.039
- Blood #770001 ΔE 0.044
- Blood Red #980002 ΔE 0.047
Use #831621 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.