#21132A
Closest named color: Rich Black (#0D1B2A). oklch(21.7% 0.047 311), rgb(33, 19, 42).
Aa
White text reads best on this color (17.62:1).
About this color
#21132A is a very dark, muted purple. In OKLCH its lightness is 22%, its chroma 0.047 and its hue 311°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.043 away. White text reads best on it, at 17.62:1.
| Hue family | Purples |
| Lightness | very dark (22%) |
| Chroma | muted (0.047) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.19:1 |
| White text | 17.62:1 |
Values
| HEX | #21132A |
| RGB | rgb(33, 19, 42) |
| HSL | hsl(277, 38%, 12%) |
| OKLCH | oklch(21.7% 0.047 311) |
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 #21132A | 17.62:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #21132A | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #21132A text on white | 17.62:1 | AAA | Lc 104.4 | Preferred for body text |
| #21132A 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
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#EDE7F2
oklch(93.6% 0.016 310.1)
-
Step 200
200
#E0D4E9
oklch(88.6% 0.031 311)
-
Step 300
300
#CCB7DC
oklch(80.9% 0.056 310.5)
-
Step 400
400
#B391CA
oklch(70.8% 0.089 311.3)
-
Step 500
500
#A074BC
oklch(63% 0.115 311.4)
-
Step 600
600
#8B5CA9
oklch(55.7% 0.125 311)
-
Step 700
700
#764B91
oklch(49.1% 0.117 311.1)
-
Step 800
800
#603E75
oklch(42.7% 0.096 311.4)
-
Step 900
900
#4E355F
oklch(37.6% 0.076 310.6)
-
Step 950
950 (this color)
#21132A
oklch(21.7% 0.047 311)
#21132A 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) | #0E182B | 0.037 |
| Deuteranopia (no green cones) | #121929 | 0.034 |
| Tritanopia (no blue cones) | #20161C | 0.032 |
| Achromatopsia (no color) | #191919 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21132A
#21132A
oklch(21.7% 0.047 311)
- #121E05
#121E05
oklch(21.6% 0.047 130.5)
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 #21132A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.043
- Very Dark Purple #2A0134 ΔE 0.053
- Midnight Purple #280137 ΔE 0.054
- Dark #1B2431 ΔE 0.056
- Eggplant #380835 ΔE 0.060
- Jet #212529 ΔE 0.063
- Oxford Blue #1B263B ΔE 0.064
- Dark Purple #35063E ΔE 0.065
Use #21132A 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.