#33021C
Closest named color: Dark Plum (#3F012C). oklch(21.4% 0.083 353.5), rgb(51, 2, 28).
Aa
White text reads best on this color (18.00:1).
About this color
#33021C is a very dark, moderately saturated red. In OKLCH its lightness is 21%, its chroma 0.083 and its hue 353°. 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 18.00:1.
| Hue family | Reds |
| Lightness | very dark (21%) |
| Chroma | moderately saturated (0.083) |
| Temperature | warm |
| Nearest name | Dark Plum (#3F012C) |
| Black text | 1.16:1 |
| White text | 18.00:1 |
Values
| HEX | #33021C |
| RGB | rgb(51, 2, 28) |
| HSL | hsl(328, 92%, 10%) |
| OKLCH | oklch(21.4% 0.083 353.5) |
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 #33021C | 18.00:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #33021C | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #33021C text on white | 18.00:1 | AAA | Lc 104.0 | Preferred for body text |
| #33021C text on black | 1.16:1 | 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
#FAE2EB
oklch(93.5% 0.029 352.9)
-
Step 200
200
#F7CBDC
oklch(88.5% 0.054 353.1)
-
Step 300
300
#F3A6C5
oklch(80.8% 0.098 353.7)
-
Step 400
400
#E973A8
oklch(70.7% 0.156 353.6)
-
Step 500
500
#DF4693
oklch(63.2% 0.201 353.5)
-
Step 600
600
#CA177D
oklch(55.6% 0.219 353.6)
-
Step 700
700
#AE0069
oklch(49.1% 0.203 353.8)
-
Step 800
800
#8D0C56
oklch(42.6% 0.168 353.4)
-
Step 900
900
#721847
oklch(37.8% 0.131 353.6)
-
Step 950
950 (this color)
#33021C
oklch(21.4% 0.083 353.5)
#33021C 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) | #0B111D | 0.094 |
| Deuteranopia (no green cones) | #1A1A1B | 0.082 |
| Tritanopia (no blue cones) | #38000D | 0.031 |
| Achromatopsia (no color) | #171717 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33021C
#33021C
oklch(21.4% 0.083 353.5)
- #001F17
#001F17
oklch(21.3% 0.041 172.5)
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 #33021C, 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 0.043
- Eggplant #380835 ΔE 0.049
- Aubergine #3D0734 ΔE 0.051
- Very Dark Purple #2A0134 ΔE 0.056
- Deep Brown #410200 ΔE 0.062
- Midnight Purple #280137 ΔE 0.064
- Dark Purple #35063E ΔE 0.065
Use #33021C 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.