#331D37
Closest named color: Eggplant (#380835). oklch(27.1% 0.055 321.3), rgb(51, 29, 55).
Aa
White text reads best on this color (15.30:1).
About this color
#331D37 is a dark, muted purple. In OKLCH its lightness is 27%, its chroma 0.055 and its hue 321°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Eggplant (#380835), ΔE 0.049 away. White text reads best on it, at 15.30:1.
| Hue family | Purples |
| Lightness | dark (27%) |
| Chroma | muted (0.055) |
| Temperature | in between |
| Nearest name | Eggplant (#380835) |
| Black text | 1.37:1 |
| White text | 15.30:1 |
Values
| HEX | #331D37 |
| RGB | rgb(51, 29, 55) |
| HSL | hsl(291, 31%, 16%) |
| OKLCH | oklch(27.1% 0.055 321.3) |
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 #331D37 | 15.30:1 | AAA | Lc -104.9 | Preferred for body text |
| Black text on #331D37 | 1.37:1 | Fails | Lc 0.0 | Not readable |
| #331D37 text on white | 15.30:1 | AAA | Lc 102.1 | Preferred for body text |
| #331D37 text on black | 1.37:1 | 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
#F8F4F9
oklch(97.2% 0.008 319.4)
-
Step 100
100
#F0E6F2
oklch(93.6% 0.019 320.6)
-
Step 200
200
#E5D2E8
oklch(88.6% 0.036 321.6)
-
Step 300
300
#D5B3DB
oklch(80.9% 0.067 321.2)
-
Step 400
400
#BF8BC8
oklch(70.8% 0.104 321.4)
-
Step 500
500
#AE6CBA
oklch(63.1% 0.134 321.3)
-
Step 600
600
#9952A6
oklch(55.6% 0.146 321.2)
-
Step 700
700
#83428E
oklch(49.1% 0.136 321.7)
-
Step 800
800
#6A3773
oklch(42.6% 0.112 321.4)
-
Step 900
900
#56305D
oklch(37.6% 0.087 321.2)
-
Step 950
950 (this color)
#331D37
oklch(27.1% 0.055 321.3)
#331D37 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) | #1A2438 | 0.049 |
| Deuteranopia (no green cones) | #1F2636 | 0.045 |
| Tritanopia (no blue cones) | #342027 | 0.034 |
| Achromatopsia (no color) | #252525 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #331D37
#331D37
oklch(27.1% 0.055 321.3)
- #162D13
#162D13
oklch(27% 0.055 141.5)
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 #331D37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Eggplant #380835 ΔE 0.049
- Oxford Blue #1B263B ΔE 0.049
- Space Cadet #2B2D42 ΔE 0.050
- Aubergine #3D0734 ΔE 0.051
- Dark #1B2431 ΔE 0.052
- Jet #212529 ΔE 0.054
- Dark Purple #35063E ΔE 0.056
- Eggplant Purple #430541 ΔE 0.061
Use #331D37 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.