#21102E
Closest named color: Very Dark Purple (#2A0134). oklch(21.4% 0.06 308.3), rgb(33, 16, 46).
Aa
White text reads best on this color (17.82:1).
About this color
#21102E is a very dark, muted purple. In OKLCH its lightness is 21%, its chroma 0.060 and its hue 308°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Very Dark Purple (#2A0134), ΔE 0.041 away. White text reads best on it, at 17.82:1.
| Hue family | Purples |
| Lightness | very dark (21%) |
| Chroma | muted (0.060) |
| Temperature | in between |
| Nearest name | Very Dark Purple (#2A0134) |
| Black text | 1.17:1 |
| White text | 17.82:1 |
Values
| HEX | #21102E |
| RGB | rgb(33, 16, 46) |
| HSL | hsl(274, 48%, 12%) |
| OKLCH | oklch(21.4% 0.06 308.3) |
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 #21102E | 17.82:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #21102E | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #21102E text on white | 17.82:1 | AAA | Lc 104.5 | Preferred for body text |
| #21102E 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
#EEE6F5
oklch(93.6% 0.022 309.6)
-
Step 200
200
#E0D3EE
oklch(88.6% 0.039 307.2)
-
Step 300
300
#CDB5E4
oklch(80.9% 0.07 308)
-
Step 400
400
#B58DD7
oklch(70.8% 0.113 308.5)
-
Step 500
500
#A26ECC
oklch(63% 0.146 308.3)
-
Step 600
600
#8D54B9
oklch(55.5% 0.159 308.1)
-
Step 700
700
#78449F
oklch(49% 0.147 308.3)
-
Step 800
800
#623981
oklch(42.8% 0.121 308.4)
-
Step 900
900
#503268
oklch(37.8% 0.095 308.2)
-
Step 950
950 (this color)
#21102E
oklch(21.4% 0.06 308.3)
#21102E 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) | #07172F | 0.049 |
| Deuteranopia (no green cones) | #0C182D | 0.045 |
| Tritanopia (no blue cones) | #1F151D | 0.041 |
| Achromatopsia (no color) | #181818 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21102E
#21102E
oklch(21.4% 0.06 308.3)
- #111E00
#111E00
oklch(21.5% 0.057 128.9)
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 #21102E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Purple #2A0134 ΔE 0.041
- Midnight Purple #280137 ΔE 0.042
- Rich Black #0D1B2A ΔE 0.051
- Eggplant #380835 ΔE 0.056
- Dark Purple #35063E ΔE 0.057
- Deep Purple #36013F ΔE 0.063
- Dark #1B2431 ΔE 0.065
- Aubergine #3D0734 ΔE 0.067
Use #21102E 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.