#331F59
Closest named color: Space Cadet (#2B2D42). oklch(29.9% 0.1 295.6), rgb(51, 31, 89).
Aa
White text reads best on this color (14.17:1).
About this color
#331F59 is a dark, moderately saturated purple. In OKLCH its lightness is 30%, its chroma 0.100 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.065 away. White text reads best on it, at 14.17:1.
| Hue family | Purples |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.100) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.48:1 |
| White text | 14.17:1 |
Values
| HEX | #331F59 |
| RGB | rgb(51, 31, 89) |
| HSL | hsl(261, 48%, 24%) |
| OKLCH | oklch(29.9% 0.1 295.6) |
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 #331F59 | 14.17:1 | AAA | Lc -103.6 | Preferred for body text |
| Black text on #331F59 | 1.48:1 | Fails | Lc 0.0 | Not readable |
| #331F59 text on white | 14.17:1 | AAA | Lc 100.6 | Preferred for body text |
| #331F59 text on black | 1.48:1 | 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
#F6F4FF
oklch(97.2% 0.015 294.5)
-
Step 100
100
#EBE6FF
oklch(93.6% 0.034 294.9)
-
Step 200
200
#DCD1FF
oklch(88.4% 0.064 296)
-
Step 300
300
#C6B2FF
oklch(80.8% 0.109 295.8)
-
Step 400
400
#AB86FF
oklch(70.7% 0.173 295.7)
-
Step 500
500
#9960FF
oklch(63.1% 0.225 295.8)
-
Step 600
600
#8734F7
oklch(55.6% 0.263 295.6)
-
Step 700
700
#7322D8
oklch(49.2% 0.245 295.5)
-
Step 800
800
#5D21AE
oklch(42.7% 0.202 295.5)
-
Step 900
900
#4C248A
oklch(37.8% 0.158 295.7)
-
Step 950
950 (this color)
#331F59
oklch(29.9% 0.1 295.6)
#331F59 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) | #002B5B | 0.068 |
| Deuteranopia (no green cones) | #042A58 | 0.066 |
| Tritanopia (no blue cones) | #292C38 | 0.080 |
| Achromatopsia (no color) | #2B2B2B | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #331F59
#331F59
oklch(29.9% 0.1 295.6)
- #2C3100
#2C3100
oklch(29.8% 0.068 115.8)
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 #331F59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.065
- Midnight Blue #191970 ΔE 0.065
- Dark Indigo #1F0954 ΔE 0.067
- Marine #042E60 ΔE 0.068
- Deep Violet #490648 ΔE 0.069
- Prussian Blue #1D3557 ΔE 0.069
- Dark Purple #35063E ΔE 0.070
- Eggplant Purple #430541 ΔE 0.070
Use #331F59 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.