#831019
Closest named color: Maroon (#800000). oklch(39.3% 0.147 24.4), rgb(131, 16, 25).
Aa
White text reads best on this color (10.22:1).
About this color
#831019 is a dark, vivid red. In OKLCH its lightness is 39%, its chroma 0.147 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Maroon (#800000), ΔE 0.022 away. White text reads best on it, at 10.22:1.
| Hue family | Reds |
| Lightness | dark (39%) |
| Chroma | vivid (0.147) |
| Temperature | warm |
| Nearest name | Maroon (#800000) |
| Black text | 2.05:1 |
| White text | 10.22:1 |
Values
| HEX | #831019 |
| RGB | rgb(131, 16, 25) |
| HSL | hsl(355, 78%, 29%) |
| OKLCH | oklch(39.3% 0.147 24.4) |
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 #831019 | 10.22:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #831019 | 2.05:1 | Fails | Lc 11.9 | Not readable |
| #831019 text on white | 10.22:1 | AAA | Lc 92.0 | Preferred for body text |
| #831019 text on black | 2.05:1 | Fails | Lc -10.4 | 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
#FFE2DF
oklch(93.6% 0.032 24.8)
-
Step 200
200
#FFCAC6
oklch(88.4% 0.061 23.4)
-
Step 300
300
#FFA59E
oklch(80.9% 0.108 24.6)
-
Step 400
400
#FB6C68
oklch(70.7% 0.176 24.2)
-
Step 500
500
#F4333D
oklch(63.1% 0.226 24.5)
-
Step 600
600
#D80026
oklch(55.6% 0.225 24.4)
-
Step 700
700
#B7001F
oklch(49.1% 0.199 24.3)
-
Step 800
800
#970017
oklch(42.6% 0.173 24.5)
-
Step 900
900 (this color)
#831019
oklch(39.3% 0.147 24.4)
-
Step 950
950
#4A0B0D
oklch(27% 0.093 24.6)
#831019 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) | #373118 | 0.161 |
| Deuteranopia (no green cones) | #534914 | 0.145 |
| Tritanopia (no blue cones) | #910015 | 0.029 |
| Achromatopsia (no color) | #414141 | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #831019
#831019
oklch(39.3% 0.147 24.4)
- #005056
#005056
oklch(39.3% 0.067 203.5)
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 #831019, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Maroon #800000 ΔE 0.022
- Dark Red #8B0000 ΔE 0.022
- Wine Red #7B0323 ΔE 0.029
- Brick Red #8F1402 ΔE 0.033
- Blood #770001 ΔE 0.037
- Bordeaux #7B002C ΔE 0.040
- Red Wine #8C0034 ΔE 0.043
- Blood Red #980002 ΔE 0.046
Use #831019 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.