#21152E
Closest named color: Rich Black (#0D1B2A). oklch(22.5% 0.049 304.9), rgb(33, 21, 46).
Aa
White text reads best on this color (17.33:1).
About this color
#21152E is a very dark, muted purple. In OKLCH its lightness is 22%, its chroma 0.049 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.041 away. White text reads best on it, at 17.33:1.
| Hue family | Purples |
| Lightness | very dark (22%) |
| Chroma | muted (0.049) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.21:1 |
| White text | 17.33:1 |
Values
| HEX | #21152E |
| RGB | rgb(33, 21, 46) |
| HSL | hsl(269, 37%, 13%) |
| OKLCH | oklch(22.5% 0.049 304.9) |
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 #21152E | 17.33:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #21152E | 1.21:1 | Fails | Lc 0.0 | Not readable |
| #21152E text on white | 17.33:1 | AAA | Lc 104.1 | Preferred for body text |
| #21152E text on black | 1.21:1 | 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
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#ECE7F3
oklch(93.5% 0.017 304.8)
-
Step 200
200
#DED4EB
oklch(88.5% 0.033 305.3)
-
Step 300
300
#C9B8E0
oklch(81% 0.058 304.4)
-
Step 400
400
#AE92D0
oklch(70.8% 0.094 304.8)
-
Step 500
500
#9A76C3
oklch(63.1% 0.118 304.8)
-
Step 600
600
#855DB0
oklch(55.6% 0.13 304.8)
-
Step 700
700
#714C97
oklch(49.1% 0.121 305.1)
-
Step 800
800
#5C3F7B
oklch(42.8% 0.101 304.8)
-
Step 900
900
#4B3663
oklch(37.7% 0.078 304.4)
-
Step 950
950 (this color)
#21152E
oklch(22.5% 0.049 304.9)
#21152E 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) | #0F1A2F | 0.035 |
| Deuteranopia (no green cones) | #111A2D | 0.033 |
| Tritanopia (no blue cones) | #1F191F | 0.036 |
| Achromatopsia (no color) | #1A1A1A | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21152E
#21152E
oklch(22.5% 0.049 304.9)
- #161F03
#161F03
oklch(22.3% 0.05 124.9)
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 #21152E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.041
- Dark #1B2431 ΔE 0.050
- Very Dark Purple #2A0134 ΔE 0.054
- Midnight Purple #280137 ΔE 0.055
- Oxford Blue #1B263B ΔE 0.056
- Jet #212529 ΔE 0.059
- Eggplant #380835 ΔE 0.059
- Dark Purple #35063E ΔE 0.062
Use #21152E 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.