#331F4E
Closest named color: Space Cadet (#2B2D42). oklch(29% 0.084 300.9), rgb(51, 31, 78).
Aa
White text reads best on this color (14.51:1).
About this color
#331F4E is a dark, moderately saturated purple. In OKLCH its lightness is 29%, its chroma 0.084 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.053 away. White text reads best on it, at 14.51:1.
| Hue family | Purples |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.084) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.44:1 |
| White text | 14.51:1 |
Values
| HEX | #331F4E |
| RGB | rgb(51, 31, 78) |
| HSL | hsl(266, 43%, 21%) |
| OKLCH | oklch(29% 0.084 300.9) |
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 #331F4E | 14.51:1 | AAA | Lc -104.0 | Preferred for body text |
| Black text on #331F4E | 1.44:1 | Fails | Lc 0.0 | Not readable |
| #331F4E text on white | 14.51:1 | AAA | Lc 101.1 | Preferred for body text |
| #331F4E text on black | 1.44:1 | 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
#F7F4FD
oklch(97.2% 0.012 301.3)
-
Step 100
100
#EDE6FB
oklch(93.7% 0.029 301)
-
Step 200
200
#DFD1F9
oklch(88.5% 0.056 301.2)
-
Step 300
300
#CBB2F7
oklch(80.9% 0.099 300.8)
-
Step 400
400
#B286F3
oklch(70.7% 0.159 301)
-
Step 500
500
#A063EF
oklch(63.2% 0.204 300.8)
-
Step 600
600
#8C44DD
oklch(55.7% 0.221 300.9)
-
Step 700
700
#7733C0
oklch(49.1% 0.206 300.9)
-
Step 800
800
#612C9B
oklch(42.7% 0.171 301.2)
-
Step 900
900
#4F2A7B
oklch(37.7% 0.132 301.3)
-
Step 950
950 (this color)
#331F4E
oklch(29% 0.084 300.9)
#331F4E 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) | #0D2950 | 0.061 |
| Deuteranopia (no green cones) | #13294D | 0.056 |
| Tritanopia (no blue cones) | #2E2833 | 0.063 |
| Achromatopsia (no color) | #292929 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #331F4E
#331F4E
oklch(29% 0.084 300.9)
- #273000
#273000
oklch(29% 0.069 120.3)
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 #331F4E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.053
- Dark Purple #35063E ΔE 0.059
- Oxford Blue #1B263B ΔE 0.061
- Eggplant Purple #430541 ΔE 0.061
- Deep Violet #490648 ΔE 0.063
- Eggplant #380835 ΔE 0.065
- Deep Purple #36013F ΔE 0.066
- Aubergine #3D0734 ΔE 0.068
Use #331F4E 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.