#33031C
Closest named color: Dark Plum (#3F012C). oklch(21.5% 0.081 353.9), rgb(51, 3, 28).
Aa
White text reads best on this color (17.94:1).
About this color
#33031C is a very dark, moderately saturated red. In OKLCH its lightness is 22%, its chroma 0.081 and its hue 354°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Plum (#3F012C), ΔE 0.041 away. White text reads best on it, at 17.94:1.
| Hue family | Reds |
| Lightness | very dark (22%) |
| Chroma | moderately saturated (0.081) |
| Temperature | warm |
| Nearest name | Dark Plum (#3F012C) |
| Black text | 1.17:1 |
| White text | 17.94:1 |
Values
| HEX | #33031C |
| RGB | rgb(51, 3, 28) |
| HSL | hsl(329, 89%, 11%) |
| OKLCH | oklch(21.5% 0.081 353.9) |
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 #33031C | 17.94:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #33031C | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #33031C text on white | 17.94:1 | AAA | Lc 104.0 | Preferred for body text |
| #33031C text on black | 1.17:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#FDF2F6
oklch(97.1% 0.013 353.1)
-
Step 100
100
#FAE3EB
oklch(93.7% 0.027 354.5)
-
Step 200
200
#F7CBDB
oklch(88.5% 0.054 354.4)
-
Step 300
300
#F2A7C5
oklch(80.9% 0.096 353.8)
-
Step 400
400
#E874A7
oklch(70.7% 0.153 354.1)
-
Step 500
500
#DD4892
oklch(63% 0.197 353.7)
-
Step 600
600
#C81E7C
oklch(55.6% 0.213 353.8)
-
Step 700
700
#AD0868
oklch(49.1% 0.198 354.2)
-
Step 800
800
#8C1155
oklch(42.7% 0.164 353.9)
-
Step 900
900
#711A46
oklch(37.8% 0.127 354.2)
-
Step 950
950 (this color)
#33031C
oklch(21.5% 0.081 353.9)
#33031C 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) | #0C111D | 0.091 |
| Deuteranopia (no green cones) | #1A1A1B | 0.080 |
| Tritanopia (no blue cones) | #38000E | 0.028 |
| Achromatopsia (no color) | #171717 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33031C
#33031C
oklch(21.5% 0.081 353.9)
- #001F18
#001F18
oklch(21.4% 0.04 175)
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 #33031C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Plum #3F012C ΔE 0.041
- Dark Maroon #3C0008 ΔE 0.042
- Eggplant #380835 ΔE 0.049
- Aubergine #3D0734 ΔE 0.051
- Very Dark Purple #2A0134 ΔE 0.057
- Deep Brown #410200 ΔE 0.061
- Midnight Purple #280137 ΔE 0.065
- Dark Purple #35063E ΔE 0.065
Use #33031C 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.