#21102D
Closest named color: Very Dark Purple (#2A0134). oklch(21.3% 0.058 309.4), rgb(33, 16, 45).
Aa
White text reads best on this color (17.84:1).
About this color
#21102D is a very dark, muted purple. In OKLCH its lightness is 21%, its chroma 0.058 and its hue 309°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Very Dark Purple (#2A0134), ΔE 0.042 away. White text reads best on it, at 17.84:1.
| Hue family | Purples |
| Lightness | very dark (21%) |
| Chroma | muted (0.058) |
| Temperature | in between |
| Nearest name | Very Dark Purple (#2A0134) |
| Black text | 1.17:1 |
| White text | 17.84:1 |
Values
| HEX | #21102D |
| RGB | rgb(33, 16, 45) |
| HSL | hsl(275, 48%, 12%) |
| OKLCH | oklch(21.3% 0.058 309.4) |
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 #21102D | 17.84:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #21102D | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #21102D text on white | 17.84:1 | AAA | Lc 104.5 | Preferred for body text |
| #21102D 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
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EEE6F4
oklch(93.5% 0.021 311.1)
-
Step 200
200
#E1D3ED
oklch(88.6% 0.038 309.6)
-
Step 300
300
#CEB5E3
oklch(80.9% 0.069 309.4)
-
Step 400
400
#B58DD5
oklch(70.7% 0.111 309.2)
-
Step 500
500
#A36FC9
oklch(63.1% 0.141 309.5)
-
Step 600
600
#8E55B6
oklch(55.6% 0.154 309.4)
-
Step 700
700
#79459D
oklch(49.2% 0.143 309.4)
-
Step 800
800
#62397F
oklch(42.7% 0.118 309.3)
-
Step 900
900
#503266
oklch(37.7% 0.092 309.3)
-
Step 950
950 (this color)
#21102D
oklch(21.3% 0.058 309.4)
#21102D 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) | #08172E | 0.048 |
| Deuteranopia (no green cones) | #0D182C | 0.044 |
| Tritanopia (no blue cones) | #1F151C | 0.041 |
| Achromatopsia (no color) | #171717 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21102D
#21102D
oklch(21.3% 0.058 309.4)
- #101E00
#101E00
oklch(21.4% 0.058 130)
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 #21102D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Purple #2A0134 ΔE 0.042
- Midnight Purple #280137 ΔE 0.043
- Rich Black #0D1B2A ΔE 0.050
- Eggplant #380835 ΔE 0.056
- Dark Purple #35063E ΔE 0.058
- Deep Purple #36013F ΔE 0.064
- Dark #1B2431 ΔE 0.065
- Aubergine #3D0734 ΔE 0.067
Use #21102D 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.