#331F45
Closest named color: Space Cadet (#2B2D42). oklch(28.4% 0.071 306.7), rgb(51, 31, 69).
Aa
White text reads best on this color (14.76:1).
About this color
#331F45 is a dark, moderately saturated purple. In OKLCH its lightness is 28%, its chroma 0.071 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 0.046 away. White text reads best on it, at 14.76:1.
| Hue family | Purples |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.071) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.42:1 |
| White text | 14.76:1 |
Values
| HEX | #331F45 |
| RGB | rgb(51, 31, 69) |
| HSL | hsl(272, 38%, 20%) |
| OKLCH | oklch(28.4% 0.071 306.7) |
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 #331F45 | 14.76:1 | AAA | Lc -104.3 | Preferred for body text |
| Black text on #331F45 | 1.42:1 | Fails | Lc 0.0 | Not readable |
| #331F45 text on white | 14.76:1 | AAA | Lc 101.5 | Preferred for body text |
| #331F45 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
#F7F4FC
oklch(97.2% 0.011 303.1)
-
Step 100
100
#EEE6F7
oklch(93.6% 0.024 307)
-
Step 200
200
#E1D2F2
oklch(88.6% 0.046 306.6)
-
Step 300
300
#CFB3EC
oklch(81% 0.084 306.9)
-
Step 400
400
#B689E2
oklch(70.7% 0.134 306.5)
-
Step 500
500
#A568D9
oklch(63.1% 0.172 307.1)
-
Step 600
600
#904CC7
oklch(55.6% 0.187 306.8)
-
Step 700
700
#7B3CAC
oklch(49.1% 0.174 307)
-
Step 800
800
#64338B
oklch(42.8% 0.143 307)
-
Step 900
900
#512E6F
oklch(37.7% 0.111 306.7)
-
Step 950
950 (this color)
#331F45
oklch(28.4% 0.071 306.7)
#331F45 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) | #152746 | 0.054 |
| Deuteranopia (no green cones) | #1A2844 | 0.049 |
| Tritanopia (no blue cones) | #30262E | 0.053 |
| Achromatopsia (no color) | #282828 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #331F45
#331F45
oklch(28.4% 0.071 306.7)
- #203002
#203002
oklch(28.4% 0.071 127.4)
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 #331F45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.046
- Oxford Blue #1B263B ΔE 0.052
- Dark Purple #35063E ΔE 0.056
- Eggplant #380835 ΔE 0.057
- Eggplant Purple #430541 ΔE 0.059
- Aubergine #3D0734 ΔE 0.059
- Dark #1B2431 ΔE 0.063
- Gunmetal #293241 ΔE 0.063
Use #331F45 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.