#331E37
Closest named color: Space Cadet (#2B2D42). oklch(27.3% 0.053 321), rgb(51, 30, 55).
Aa
White text reads best on this color (15.19:1).
About this color
#331E37 is a dark, muted purple. In OKLCH its lightness is 27%, its chroma 0.053 and its hue 321°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.047 away. White text reads best on it, at 15.19:1.
| Hue family | Purples |
| Lightness | dark (27%) |
| Chroma | muted (0.053) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.38:1 |
| White text | 15.19:1 |
Values
| HEX | #331E37 |
| RGB | rgb(51, 30, 55) |
| HSL | hsl(290, 29%, 17%) |
| OKLCH | oklch(27.3% 0.053 321) |
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 #331E37 | 15.19:1 | AAA | Lc -104.8 | Preferred for body text |
| Black text on #331E37 | 1.38:1 | Fails | Lc 0.0 | Not readable |
| #331E37 text on white | 15.19:1 | AAA | Lc 102.0 | Preferred for body text |
| #331E37 text on black | 1.38:1 | 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
#F0E6F1
oklch(93.6% 0.018 323)
-
Step 200
200
#E4D2E7
oklch(88.5% 0.034 321.4)
-
Step 300
300
#D4B4DA
oklch(81% 0.063 321)
-
Step 400
400
#BD8CC7
oklch(70.7% 0.1 320.6)
-
Step 500
500
#AC6EB8
oklch(63.1% 0.127 320.9)
-
Step 600
600
#9754A4
oklch(55.5% 0.139 320.9)
-
Step 700
700
#81448D
oklch(49.1% 0.13 320.8)
-
Step 800
800
#693872
oklch(42.6% 0.108 321.2)
-
Step 900
900
#55315C
oklch(37.6% 0.084 320.9)
-
Step 950
950 (this color)
#331E37
oklch(27.3% 0.053 321)
#331E37 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) | #1B2438 | 0.047 |
| Deuteranopia (no green cones) | #202636 | 0.042 |
| Tritanopia (no blue cones) | #342127 | 0.034 |
| Achromatopsia (no color) | #262626 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #331E37
#331E37
oklch(27.3% 0.053 321)
- #182E14
#182E14
oklch(27.5% 0.054 140.6)
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 #331E37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.047
- Oxford Blue #1B263B ΔE 0.048
- Dark #1B2431 ΔE 0.050
- Eggplant #380835 ΔE 0.052
- Jet #212529 ΔE 0.052
- Aubergine #3D0734 ΔE 0.053
- Dark Purple #35063E ΔE 0.059
- Gunmetal #293241 ΔE 0.063
Use #331E37 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.