#210A37
Closest named color: Midnight Purple (#280137). oklch(21.1% 0.083 303.3), rgb(33, 10, 55).
Aa
White text reads best on this color (18.05:1).
About this color
#210A37 is a very dark, moderately saturated purple. In OKLCH its lightness is 21%, its chroma 0.083 and its hue 303°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Midnight Purple (#280137), ΔE 0.025 away. White text reads best on it, at 18.05:1.
| Hue family | Purples |
| Lightness | very dark (21%) |
| Chroma | moderately saturated (0.083) |
| Temperature | in between |
| Nearest name | Midnight Purple (#280137) |
| Black text | 1.16:1 |
| White text | 18.05:1 |
Values
| HEX | #210A37 |
| RGB | rgb(33, 10, 55) |
| HSL | hsl(271, 69%, 13%) |
| OKLCH | oklch(21.1% 0.083 303.3) |
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 #210A37 | 18.05:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #210A37 | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #210A37 text on white | 18.05:1 | AAA | Lc 104.5 | Preferred for body text |
| #210A37 text on black | 1.16:1 | 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
#F7F3FD
oklch(97% 0.014 304.1)
-
Step 100
100
#EDE6FA
oklch(93.6% 0.028 301.7)
-
Step 200
200
#E0D1F8
oklch(88.5% 0.055 302.8)
-
Step 300
300
#CEB1F5
oklch(80.9% 0.099 303.8)
-
Step 400
400
#B585F0
oklch(70.6% 0.158 303.3)
-
Step 500
500
#A462EB
oklch(63.2% 0.201 303.3)
-
Step 600
600
#9042D9
oklch(55.6% 0.22 303.6)
-
Step 700
700
#7A32BC
oklch(49% 0.204 303.3)
-
Step 800
800
#632C98
oklch(42.7% 0.168 303.2)
-
Step 900
900
#512979
oklch(37.6% 0.132 303.7)
-
Step 950
950 (this color)
#210A37
oklch(21.1% 0.083 303.3)
#210A37 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) | #001638 | 0.062 |
| Deuteranopia (no green cones) | #001636 | 0.063 |
| Tritanopia (no blue cones) | #1D151F | 0.062 |
| Achromatopsia (no color) | #161616 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #210A37
#210A37
oklch(21.1% 0.083 303.3)
- #141C00
#141C00
oklch(21.1% 0.052 123.1)
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 #210A37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Purple #280137 ΔE 0.025
- Very Dark Purple #2A0134 ΔE 0.029
- Dark Purple #35063E ΔE 0.049
- Deep Purple #36013F ΔE 0.053
- Dark Indigo #1F0954 ΔE 0.056
- Eggplant #380835 ΔE 0.056
- Navy Blue #001146 ΔE 0.067
- Rich Black #0D1B2A ΔE 0.068
Use #210A37 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.