#21132D
Closest named color: Rich Black (#0D1B2A). oklch(22% 0.052 307.5), rgb(33, 19, 45).
Aa
White text reads best on this color (17.56:1).
About this color
#21132D is a very dark, muted purple. In OKLCH its lightness is 22%, its chroma 0.052 and its hue 307°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.044 away. White text reads best on it, at 17.56:1.
| Hue family | Purples |
| Lightness | very dark (22%) |
| Chroma | muted (0.052) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.19:1 |
| White text | 17.56:1 |
Values
| HEX | #21132D |
| RGB | rgb(33, 19, 45) |
| HSL | hsl(272, 41%, 13%) |
| OKLCH | oklch(22% 0.052 307.5) |
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 #21132D | 17.56:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #21132D | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #21132D text on white | 17.56:1 | AAA | Lc 104.3 | Preferred for body text |
| #21132D 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
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EDE7F3
oklch(93.6% 0.017 308.3)
-
Step 200
200
#DFD4EB
oklch(88.6% 0.033 307.1)
-
Step 300
300
#CBB7E0
oklch(81% 0.061 307.1)
-
Step 400
400
#B190D1
oklch(70.7% 0.099 307.2)
-
Step 500
500
#9E73C4
oklch(63% 0.126 307.6)
-
Step 600
600
#895AB1
oklch(55.6% 0.138 307.4)
-
Step 700
700
#744A98
oklch(49.1% 0.127 307.2)
-
Step 800
800
#5F3D7B
oklch(42.7% 0.105 307.9)
-
Step 900
900
#4D3463
oklch(37.6% 0.083 307.4)
-
Step 950
950 (this color)
#21132D
oklch(22% 0.052 307.5)
#21132D 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) | #0C192E | 0.041 |
| Deuteranopia (no green cones) | #10192C | 0.036 |
| Tritanopia (no blue cones) | #1F171D | 0.038 |
| Achromatopsia (no color) | #191919 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21132D
#21132D
oklch(22% 0.052 307.5)
- #141F02
#141F02
oklch(22.1% 0.053 127.1)
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 #21132D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.044
- Very Dark Purple #2A0134 ΔE 0.050
- Midnight Purple #280137 ΔE 0.050
- Dark #1B2431 ΔE 0.056
- Eggplant #380835 ΔE 0.058
- Dark Purple #35063E ΔE 0.061
- Oxford Blue #1B263B ΔE 0.062
- Jet #212529 ΔE 0.064
Use #21132D 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.