#831A40
Closest named color: Red Purple (#820747). oklch(40.8% 0.141 4.7), rgb(131, 26, 64).
Aa
White text reads best on this color (9.60:1).
About this color
#831A40 is a dark, vivid red. In OKLCH its lightness is 41%, its chroma 0.141 and its hue 5°. Its hue sits on the warm side of the wheel. The nearest named color is Red Purple (#820747), ΔE 0.026 away. White text reads best on it, at 9.60:1.
| Hue family | Reds |
| Lightness | dark (41%) |
| Chroma | vivid (0.141) |
| Temperature | warm |
| Nearest name | Red Purple (#820747) |
| Black text | 2.18:1 |
| White text | 9.60:1 |
Values
| HEX | #831A40 |
| RGB | rgb(131, 26, 64) |
| HSL | hsl(338, 67%, 31%) |
| OKLCH | oklch(40.8% 0.141 4.7) |
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 #831A40 | 9.60:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #831A40 | 2.18:1 | Fails | Lc 13.0 | Not readable |
| #831A40 text on white | 9.60:1 | AAA | Lc 91.0 | Preferred for body text |
| #831A40 text on black | 2.18:1 | Fails | Lc -11.4 | 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 800.
-
Step 50
50
#FDF3F4
oklch(97.2% 0.011 10.3)
-
Step 100
100
#F9E4E8
oklch(93.7% 0.024 4.5)
-
Step 200
200
#F5CDD5
oklch(88.5% 0.046 4.6)
-
Step 300
300
#EFABBA
oklch(80.9% 0.082 4.5)
-
Step 400
400
#E47B96
oklch(70.7% 0.132 4.6)
-
Step 500
500
#D9557C
oklch(63.2% 0.168 5)
-
Step 600
600
#C43365
oklch(55.6% 0.184 4.8)
-
Step 700
700
#A92454
oklch(49.2% 0.171 4.9)
-
Step 800
800 (this color)
#831A40
oklch(40.8% 0.141 4.7)
-
Step 900
900
#6E223A
oklch(37.7% 0.109 4.6)
-
Step 950
950
#411522
oklch(27% 0.07 4.6)
#831A40 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) | #343841 | 0.160 |
| Deuteranopia (no green cones) | #504C3E | 0.143 |
| Tritanopia (no blue cones) | #8F002B | 0.038 |
| Achromatopsia (no color) | #454545 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #831A40
#831A40
oklch(40.8% 0.141 4.7)
- #00564F
#00564F
oklch(40.8% 0.072 185.4)
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 #831A40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Purple #820747 ΔE 0.026
- Wine #80013F ΔE 0.027
- Red Wine #8C0034 ΔE 0.027
- Mulberry #920A4E ΔE 0.040
- Bordeaux #7B002C ΔE 0.041
- Purple Red #990147 ΔE 0.047
- Wine Red #7B0323 ΔE 0.048
- Berry #990F4B ΔE 0.048
Use #831A40 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.