#210D31
Closest named color: Midnight Purple (#280137). oklch(21.1% 0.07 307), rgb(33, 13, 49).
Aa
White text reads best on this color (18.00:1).
About this color
#210D31 is a very dark, moderately saturated purple. In OKLCH its lightness is 21%, its chroma 0.070 and its hue 307°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Midnight Purple (#280137), ΔE 0.032 away. White text reads best on it, at 18.00:1.
| Hue family | Purples |
| Lightness | very dark (21%) |
| Chroma | moderately saturated (0.070) |
| Temperature | in between |
| Nearest name | Midnight Purple (#280137) |
| Black text | 1.16:1 |
| White text | 18.00:1 |
Values
| HEX | #210D31 |
| RGB | rgb(33, 13, 49) |
| HSL | hsl(273, 58%, 12%) |
| OKLCH | oklch(21.1% 0.07 307) |
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 #210D31 | 18.00:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #210D31 | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #210D31 text on white | 18.00:1 | AAA | Lc 104.5 | Preferred for body text |
| #210D31 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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#EEE6F7
oklch(93.6% 0.024 307)
-
Step 200
200
#E1D2F2
oklch(88.6% 0.046 306.6)
-
Step 300
300
#CFB3EB
oklch(80.9% 0.083 307.3)
-
Step 400
400
#B689E1
oklch(70.7% 0.133 306.8)
-
Step 500
500
#A569D8
oklch(63.2% 0.169 307.2)
-
Step 600
600
#904DC6
oklch(55.7% 0.185 306.9)
-
Step 700
700
#7B3DAB
oklch(49.2% 0.172 307.1)
-
Step 800
800
#64338A
oklch(42.7% 0.142 307.4)
-
Step 900
900
#512E6F
oklch(37.7% 0.111 306.7)
-
Step 950
950 (this color)
#210D31
oklch(21.1% 0.07 307)
#210D31 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) | #011632 | 0.059 |
| Deuteranopia (no green cones) | #071730 | 0.053 |
| Tritanopia (no blue cones) | #1E141D | 0.050 |
| Achromatopsia (no color) | #171717 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #210D31
#210D31
oklch(21.1% 0.07 307)
- #121D00
#121D00
oklch(21.2% 0.055 126.9)
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 #210D31, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Purple #280137 ΔE 0.032
- Very Dark Purple #2A0134 ΔE 0.033
- Dark Purple #35063E ΔE 0.053
- Eggplant #380835 ΔE 0.055
- Deep Purple #36013F ΔE 0.058
- Rich Black #0D1B2A ΔE 0.058
- Aubergine #3D0734 ΔE 0.066
- Dark Indigo #1F0954 ΔE 0.067
Use #210D31 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.