#210B21
Closest named color: Very Dark Purple (#2A0134). oklch(19.5% 0.053 327.4), rgb(33, 11, 33).
Aa
White text reads best on this color (18.51:1).
About this color
#210B21 is a very dark, muted purple. In OKLCH its lightness is 20%, its chroma 0.053 and its hue 327°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Very Dark Purple (#2A0134), ΔE 0.050 away. White text reads best on it, at 18.51:1.
| Hue family | Purples |
| Lightness | very dark (20%) |
| Chroma | muted (0.053) |
| Temperature | in between |
| Nearest name | Very Dark Purple (#2A0134) |
| Black text | 1.13:1 |
| White text | 18.51:1 |
Values
| HEX | #210B21 |
| RGB | rgb(33, 11, 33) |
| HSL | hsl(300, 50%, 9%) |
| OKLCH | oklch(19.5% 0.053 327.4) |
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 #210B21 | 18.51:1 | AAA | Lc -107.1 | Preferred for body text |
| Black text on #210B21 | 1.13:1 | Fails | Lc 0.0 | Not readable |
| #210B21 text on white | 18.51:1 | AAA | Lc 104.9 | Preferred for body text |
| #210B21 text on black | 1.13:1 | 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
#F9F4F8
oklch(97.2% 0.007 332.1)
-
Step 100
100
#F1E6F0
oklch(93.6% 0.018 328.5)
-
Step 200
200
#E6D2E5
oklch(88.6% 0.034 327.4)
-
Step 300
300
#D7B3D6
oklch(80.9% 0.063 327)
-
Step 400
400
#C28AC1
oklch(70.7% 0.1 327.2)
-
Step 500
500
#B26CB1
oklch(63.2% 0.127 327.5)
-
Step 600
600
#9D529D
oklch(55.6% 0.139 327.2)
-
Step 700
700
#864286
oklch(49.1% 0.13 327.3)
-
Step 800
800
#6D376D
oklch(42.7% 0.107 327.2)
-
Step 900
900
#583058
oklch(37.6% 0.083 327.1)
-
Step 950
950 (this color)
#210B21
oklch(19.5% 0.053 327.4)
#210B21 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) | #091222 | 0.052 |
| Deuteranopia (no green cones) | #101420 | 0.045 |
| Tritanopia (no blue cones) | #220D14 | 0.029 |
| Achromatopsia (no color) | #131313 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #210B21
#210B21
oklch(19.5% 0.053 327.4)
- #021B06
#021B06
oklch(19.5% 0.053 147.2)
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 #210B21, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Purple #2A0134 ΔE 0.050
- Midnight Purple #280137 ΔE 0.053
- Rich Black #0D1B2A ΔE 0.060
- Eggplant #380835 ΔE 0.066
- Dark Purple #35063E ΔE 0.073
- Rich Navy #001219 ΔE 0.073
- Almost Black #070D0D ΔE 0.074
- Very Dark Brown #1D0200 ΔE 0.074
Use #210B21 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.