#210B3C
Closest named color: Midnight Purple (#280137). oklch(21.8% 0.088 299.4), rgb(33, 11, 60).
Aa
White text reads best on this color (17.83:1).
About this color
#210B3C is a very dark, moderately saturated purple. In OKLCH its lightness is 22%, its chroma 0.088 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Midnight Purple (#280137), ΔE 0.028 away. White text reads best on it, at 17.83:1.
| Hue family | Purples |
| Lightness | very dark (22%) |
| Chroma | moderately saturated (0.088) |
| Temperature | in between |
| Nearest name | Midnight Purple (#280137) |
| Black text | 1.17:1 |
| White text | 17.83:1 |
Values
| HEX | #210B3C |
| RGB | rgb(33, 11, 60) |
| HSL | hsl(267, 69%, 14%) |
| OKLCH | oklch(21.8% 0.088 299.4) |
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 #210B3C | 17.83:1 | AAA | Lc -106.5 | Preferred for body text |
| Black text on #210B3C | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #210B3C text on white | 17.83:1 | AAA | Lc 104.3 | Preferred for body text |
| #210B3C text on black | 1.17:1 | 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
#F7F4FE
oklch(97.2% 0.014 299.8)
-
Step 100
100
#ECE6FC
oklch(93.6% 0.03 298.3)
-
Step 200
200
#DED1FB
oklch(88.4% 0.059 299.3)
-
Step 300
300
#CAB2FB
oklch(81% 0.104 299.2)
-
Step 400
400
#B185F9
oklch(70.7% 0.168 299.6)
-
Step 500
500
#9F61F6
oklch(63.2% 0.214 299.4)
-
Step 600
600
#8B40E4
oklch(55.6% 0.232 299.5)
-
Step 700
700
#762FC6
oklch(49% 0.217 299.5)
-
Step 800
800
#602AA0
oklch(42.7% 0.179 299.6)
-
Step 900
900
#4E297F
oklch(37.8% 0.139 299.4)
-
Step 950
950 (this color)
#210B3C
oklch(21.8% 0.088 299.4)
#210B3C 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) | #00183D | 0.061 |
| Deuteranopia (no green cones) | #00173B | 0.060 |
| Tritanopia (no blue cones) | #1B1722 | 0.067 |
| Achromatopsia (no color) | #181818 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #210B3C
#210B3C
oklch(21.8% 0.088 299.4)
- #171D00
#171D00
oklch(21.7% 0.051 119.9)
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 #210B3C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Purple #280137 ΔE 0.028
- Very Dark Purple #2A0134 ΔE 0.034
- Dark Indigo #1F0954 ΔE 0.046
- Dark Purple #35063E ΔE 0.048
- Deep Purple #36013F ΔE 0.051
- Eggplant #380835 ΔE 0.058
- Navy Blue #001146 ΔE 0.062
- Night Blue #040348 ΔE 0.070
Use #210B3C 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.