#21163B
Closest named color: Midnight Purple (#280137). oklch(23.6% 0.069 294.2), rgb(33, 22, 59).
Aa
White text reads best on this color (16.90:1).
About this color
#21163B is a very dark, muted purple. In OKLCH its lightness is 24%, its chroma 0.069 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Midnight Purple (#280137), ΔE 0.051 away. White text reads best on it, at 16.90:1.
| Hue family | Purples |
| Lightness | very dark (24%) |
| Chroma | muted (0.069) |
| Temperature | in between |
| Nearest name | Midnight Purple (#280137) |
| Black text | 1.24:1 |
| White text | 16.90:1 |
Values
| HEX | #21163B |
| RGB | rgb(33, 22, 59) |
| HSL | hsl(258, 46%, 16%) |
| OKLCH | oklch(23.6% 0.069 294.2) |
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 #21163B | 16.90:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #21163B | 1.24:1 | Fails | Lc 0.0 | Not readable |
| #21163B text on white | 16.90:1 | AAA | Lc 103.7 | Preferred for body text |
| #21163B text on black | 1.24:1 | 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EAE7F9
oklch(93.6% 0.024 293.6)
-
Step 200
200
#DAD4F5
oklch(88.5% 0.045 293.8)
-
Step 300
300
#C3B7F1
oklch(80.9% 0.082 294)
-
Step 400
400
#A68FE9
oklch(70.6% 0.13 294.6)
-
Step 500
500
#9171E2
oklch(63.1% 0.165 294.2)
-
Step 600
600
#7C56D0
oklch(55.5% 0.18 294.1)
-
Step 700
700
#6945B4
oklch(49% 0.168 294.3)
-
Step 800
800
#563A92
oklch(42.8% 0.139 294.5)
-
Step 900
900
#463374
oklch(37.7% 0.107 294.1)
-
Step 950
950 (this color)
#21163B
oklch(23.6% 0.069 294.2)
#21163B 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) | #061D3C | 0.044 |
| Deuteranopia (no green cones) | #081C3A | 0.041 |
| Tritanopia (no blue cones) | #1B1E25 | 0.056 |
| Achromatopsia (no color) | #1D1D1D | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21163B
#21163B
oklch(23.6% 0.069 294.2)
- #1E2100
#1E2100
oklch(23.7% 0.053 114.6)
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 #21163B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Purple #280137 ΔE 0.051
- Oxford Blue #1B263B ΔE 0.051
- Rich Black #0D1B2A ΔE 0.052
- Very Dark Purple #2A0134 ΔE 0.053
- Dark Purple #35063E ΔE 0.054
- Dark #1B2431 ΔE 0.054
- Dark Indigo #1F0954 ΔE 0.055
- Eggplant #380835 ΔE 0.058
Use #21163B 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.