#231220
Closest named color: Rich Black (#0D1B2A). oklch(21.2% 0.037 333.4), rgb(35, 18, 32).
Aa
White text reads best on this color (17.81:1).
About this color
#231220 is a very dark, muted purple. In OKLCH its lightness is 21%, its chroma 0.037 and its hue 333°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.048 away. White text reads best on it, at 17.81:1.
| Hue family | Purples |
| Lightness | very dark (21%) |
| Chroma | muted (0.037) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.17:1 |
| White text | 17.81:1 |
Values
| HEX | #231220 |
| RGB | rgb(35, 18, 32) |
| HSL | hsl(311, 32%, 10%) |
| OKLCH | oklch(21.2% 0.037 333.4) |
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 #231220 | 17.81:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #231220 | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #231220 text on white | 17.81:1 | AAA | Lc 104.5 | Preferred for body text |
| #231220 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
#F8F4F7
oklch(97.1% 0.006 334)
-
Step 100
100
#EFE7ED
oklch(93.6% 0.012 334.1)
-
Step 200
200
#E4D3E0
oklch(88.4% 0.026 333.8)
-
Step 300
300
#D3B7CD
oklch(81% 0.044 333.3)
-
Step 400
400
#BC90B3
oklch(70.6% 0.071 333.6)
-
Step 500
500
#AB75A1
oklch(63.2% 0.09 333.4)
-
Step 600
600
#965D8B
oklch(55.7% 0.097 334.1)
-
Step 700
700
#7F4C76
oklch(49% 0.09 333.5)
-
Step 800
800
#683F60
oklch(42.8% 0.075 334.2)
-
Step 900
900
#54354F
oklch(37.6% 0.06 332.6)
-
Step 950
950 (this color)
#231220
oklch(21.2% 0.037 333.4)
#231220 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) | #121621 | 0.036 |
| Deuteranopia (no green cones) | #16191F | 0.035 |
| Tritanopia (no blue cones) | #241317 | 0.019 |
| Achromatopsia (no color) | #181818 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #231220
#231220
oklch(21.2% 0.037 333.4)
- #091E11
#091E11
oklch(21.3% 0.038 154.4)
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 #231220, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.048
- Dark #1B2431 ΔE 0.061
- Jet #212529 ΔE 0.062
- Very Dark Purple #2A0134 ΔE 0.063
- Midnight Purple #280137 ΔE 0.067
- Eggplant #380835 ΔE 0.067
- Rich Navy #001219 ΔE 0.071
- Dark Maroon #3C0008 ΔE 0.072
Use #231220 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.