#331F56
Closest named color: Space Cadet (#2B2D42). oklch(29.7% 0.096 296.9), rgb(51, 31, 86).
Aa
White text reads best on this color (14.27:1).
About this color
#331F56 is a dark, moderately saturated purple. In OKLCH its lightness is 30%, its chroma 0.096 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.061 away. White text reads best on it, at 14.27:1.
| Hue family | Purples |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.096) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.47:1 |
| White text | 14.27:1 |
Values
| HEX | #331F56 |
| RGB | rgb(51, 31, 86) |
| HSL | hsl(262, 47%, 23%) |
| OKLCH | oklch(29.7% 0.096 296.9) |
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 #331F56 | 14.27:1 | AAA | Lc -103.8 | Preferred for body text |
| Black text on #331F56 | 1.47:1 | Fails | Lc 0.0 | Not readable |
| #331F56 text on white | 14.27:1 | AAA | Lc 100.8 | Preferred for body text |
| #331F56 text on black | 1.47:1 | 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
#ECE6FE
oklch(93.7% 0.033 297.2)
-
Step 200
200
#DDD1FE
oklch(88.5% 0.063 297.3)
-
Step 300
300
#C8B2FF
oklch(81% 0.109 297)
-
Step 400
400
#AD85FF
oklch(70.7% 0.175 296.8)
-
Step 500
500
#9C5EFF
oklch(63.1% 0.228 297.1)
-
Step 600
600
#8839F0
oklch(55.6% 0.251 296.8)
-
Step 700
700
#7428D1
oklch(49.1% 0.234 296.9)
-
Step 800
800
#5E25A9
oklch(42.7% 0.194 296.8)
-
Step 900
900
#4D2686
oklch(37.8% 0.151 297.2)
-
Step 950
950 (this color)
#331F56
oklch(29.7% 0.096 296.9)
#331F56 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) | #012B58 | 0.069 |
| Deuteranopia (no green cones) | #092A55 | 0.063 |
| Tritanopia (no blue cones) | #2B2B37 | 0.075 |
| Achromatopsia (no color) | #2A2A2A | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #331F56
#331F56
oklch(29.7% 0.096 296.9)
- #2B3100
#2B3100
oklch(29.7% 0.068 116.9)
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 #331F56, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.061
- Deep Violet #490648 ΔE 0.066
- Dark Purple #35063E ΔE 0.066
- Dark Indigo #1F0954 ΔE 0.067
- Eggplant Purple #430541 ΔE 0.067
- Prussian Blue #1D3557 ΔE 0.069
- Marine #042E60 ΔE 0.069
- Midnight Blue #191970 ΔE 0.069
Use #331F56 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.