#331F44
Closest named color: Space Cadet (#2B2D42). oklch(28.3% 0.069 307.5), rgb(51, 31, 68).
Aa
White text reads best on this color (14.78:1).
About this color
#331F44 is a dark, muted purple. In OKLCH its lightness is 28%, its chroma 0.069 and its hue 307°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.045 away. White text reads best on it, at 14.78:1.
| Hue family | Purples |
| Lightness | dark (28%) |
| Chroma | muted (0.069) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.42:1 |
| White text | 14.78:1 |
Values
| HEX | #331F44 |
| RGB | rgb(51, 31, 68) |
| HSL | hsl(272, 37%, 19%) |
| OKLCH | oklch(28.3% 0.069 307.5) |
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 #331F44 | 14.78:1 | AAA | Lc -104.3 | Preferred for body text |
| Black text on #331F44 | 1.42:1 | Fails | Lc 0.0 | Not readable |
| #331F44 text on white | 14.78:1 | AAA | Lc 101.5 | Preferred for body text |
| #331F44 text on black | 1.42:1 | 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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#EEE6F7
oklch(93.6% 0.024 307)
-
Step 200
200
#E1D2F1
oklch(88.5% 0.045 307.2)
-
Step 300
300
#CFB3EA
oklch(80.9% 0.082 307.7)
-
Step 400
400
#B789E0
oklch(70.7% 0.132 307.6)
-
Step 500
500
#A569D7
oklch(63.1% 0.168 307.5)
-
Step 600
600
#904DC4
oklch(55.5% 0.183 307.4)
-
Step 700
700
#7B3DAA
oklch(49.1% 0.171 307.4)
-
Step 800
800
#643389
oklch(42.6% 0.141 307.7)
-
Step 900
900
#512E6E
oklch(37.7% 0.11 307.2)
-
Step 950
950 (this color)
#331F44
oklch(28.3% 0.069 307.5)
#331F44 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) | #152745 | 0.054 |
| Deuteranopia (no green cones) | #1B2843 | 0.048 |
| Tritanopia (no blue cones) | #31252E | 0.050 |
| Achromatopsia (no color) | #282828 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #331F44
#331F44
oklch(28.3% 0.069 307.5)
- #203003
#203003
oklch(28.5% 0.07 127.6)
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 #331F44, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.045
- Oxford Blue #1B263B ΔE 0.051
- Dark Purple #35063E ΔE 0.056
- Eggplant #380835 ΔE 0.056
- Aubergine #3D0734 ΔE 0.058
- Eggplant Purple #430541 ΔE 0.059
- Dark #1B2431 ΔE 0.061
- Gunmetal #293241 ΔE 0.063
Use #331F44 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.