#21121E
Closest named color: Rich Black (#0D1B2A). oklch(20.8% 0.033 334.2), rgb(33, 18, 30).
Aa
White text reads best on this color (17.94:1).
About this color
#21121E is a very dark, muted purple. In OKLCH its lightness is 21%, its chroma 0.033 and its hue 334°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.046 away. White text reads best on it, at 17.94:1.
| Hue family | Purples |
| Lightness | very dark (21%) |
| Chroma | muted (0.033) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.16:1 |
| White text | 17.94:1 |
Values
| HEX | #21121E |
| RGB | rgb(33, 18, 30) |
| HSL | hsl(312, 29%, 10%) |
| OKLCH | oklch(20.8% 0.033 334.2) |
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 #21121E | 17.94:1 | AAA | Lc -106.8 | Preferred for body text |
| Black text on #21121E | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #21121E text on white | 17.94:1 | AAA | Lc 104.6 | Preferred for body text |
| #21121E 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
#F8F4F7
oklch(97.1% 0.006 334)
-
Step 100
100
#EFE7ED
oklch(93.6% 0.012 334.1)
-
Step 200
200
#E3D4DF
oklch(88.5% 0.022 335)
-
Step 300
300
#D1B8CB
oklch(81% 0.038 334.3)
-
Step 400
400
#B992B1
oklch(70.6% 0.063 333.5)
-
Step 500
500
#A7779D
oklch(63% 0.079 334.1)
-
Step 600
600
#926088
oklch(55.6% 0.085 334.1)
-
Step 700
700
#7C4F73
oklch(49.1% 0.079 334.2)
-
Step 800
800
#65415E
oklch(42.7% 0.066 333.9)
-
Step 900
900
#53374D
oklch(37.8% 0.052 334.5)
-
Step 950
950 (this color)
#21121E
oklch(20.8% 0.033 334.2)
#21121E 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) | #12161E | 0.032 |
| Deuteranopia (no green cones) | #16181E | 0.029 |
| Tritanopia (no blue cones) | #221316 | 0.018 |
| Achromatopsia (no color) | #171717 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21121E
#21121E
oklch(20.8% 0.033 334.2)
- #0B1C11
#0B1C11
oklch(20.8% 0.032 154.2)
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 #21121E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.046
- Dark #1B2431 ΔE 0.062
- Jet #212529 ΔE 0.063
- Rich Navy #001219 ΔE 0.066
- Very Dark Purple #2A0134 ΔE 0.068
- Almost Black #070D0D ΔE 0.069
- Midnight Purple #280137 ΔE 0.071
- Eggplant #380835 ΔE 0.073
Use #21121E 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.