#330721
Closest named color: Dark Plum (#3F012C). oklch(22.3% 0.077 348.7), rgb(51, 7, 33).
Aa
White text reads best on this color (17.60:1).
About this color
#330721 is a very dark, moderately saturated red. In OKLCH its lightness is 22%, its chroma 0.077 and its hue 349°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Plum (#3F012C), ΔE 0.036 away. White text reads best on it, at 17.60:1.
| Hue family | Reds |
| Lightness | very dark (22%) |
| Chroma | moderately saturated (0.077) |
| Temperature | warm |
| Nearest name | Dark Plum (#3F012C) |
| Black text | 1.19:1 |
| White text | 17.60:1 |
Values
| HEX | #330721 |
| RGB | rgb(51, 7, 33) |
| HSL | hsl(325, 76%, 11%) |
| OKLCH | oklch(22.3% 0.077 348.7) |
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 #330721 | 17.60:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #330721 | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #330721 text on white | 17.60:1 | AAA | Lc 103.9 | Preferred for body text |
| #330721 text on black | 1.19:1 | 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
#FCF2F7
oklch(97% 0.013 345.5)
-
Step 100
100
#F8E3ED
oklch(93.6% 0.026 347.1)
-
Step 200
200
#F4CCDF
oklch(88.5% 0.051 347.9)
-
Step 300
300
#EEA9CA
oklch(81% 0.091 349.1)
-
Step 400
400
#E278AF
oklch(70.8% 0.145 349.1)
-
Step 500
500
#D64F9C
oklch(63.1% 0.187 348.5)
-
Step 600
600
#C12B86
oklch(55.6% 0.202 348.8)
-
Step 700
700
#A61B72
oklch(49.1% 0.188 348.5)
-
Step 800
800
#871B5D
oklch(42.7% 0.156 348.5)
-
Step 900
900
#6D1E4C
oklch(37.7% 0.122 348.7)
-
Step 950
950 (this color)
#330721
oklch(22.3% 0.077 348.7)
#330721 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) | #0D1422 | 0.086 |
| Deuteranopia (no green cones) | #1A1C20 | 0.076 |
| Tritanopia (no blue cones) | #370512 | 0.030 |
| Achromatopsia (no color) | #191919 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #330721
#330721
oklch(22.3% 0.077 348.7)
- #002218
#002218
oklch(22.4% 0.045 169.4)
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 #330721, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Plum #3F012C ΔE 0.036
- Eggplant #380835 ΔE 0.040
- Aubergine #3D0734 ΔE 0.042
- Dark Maroon #3C0008 ΔE 0.048
- Very Dark Purple #2A0134 ΔE 0.052
- Dark Purple #35063E ΔE 0.056
- Midnight Purple #280137 ΔE 0.059
- Deep Purple #36013F ΔE 0.061
Use #330721 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.