#331F31
Closest named color: Jet (#212529). oklch(27.2% 0.043 330.2), rgb(51, 31, 49).
Aa
White text reads best on this color (15.20:1).
About this color
#331F31 is a dark, muted purple. In OKLCH its lightness is 27%, its chroma 0.043 and its hue 330°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jet (#212529), ΔE 0.044 away. White text reads best on it, at 15.20:1.
| Hue family | Purples |
| Lightness | dark (27%) |
| Chroma | muted (0.043) |
| Temperature | in between |
| Nearest name | Jet (#212529) |
| Black text | 1.38:1 |
| White text | 15.20:1 |
Values
| HEX | #331F31 |
| RGB | rgb(51, 31, 49) |
| HSL | hsl(306, 24%, 16%) |
| OKLCH | oklch(27.2% 0.043 330.2) |
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 #331F31 | 15.20:1 | AAA | Lc -104.8 | Preferred for body text |
| Black text on #331F31 | 1.38:1 | Fails | Lc 0.0 | Not readable |
| #331F31 text on white | 15.20:1 | AAA | Lc 102.0 | Preferred for body text |
| #331F31 text on black | 1.38:1 | 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
#F8F4F8
oklch(97.1% 0.007 325.6)
-
Step 100
100
#F0E6EF
oklch(93.5% 0.016 328.8)
-
Step 200
200
#E5D3E2
oklch(88.6% 0.028 331.2)
-
Step 300
300
#D4B5D0
oklch(80.8% 0.051 330.3)
-
Step 400
400
#BE8EB9
oklch(70.6% 0.082 330)
-
Step 500
500
#AD71A7
oklch(63% 0.105 330.3)
-
Step 600
600
#985993
oklch(55.6% 0.114 329.9)
-
Step 700
700
#82497D
oklch(49.2% 0.105 330.3)
-
Step 800
800
#6A3C65
oklch(42.8% 0.087 331)
-
Step 900
900
#563453
oklch(37.8% 0.068 330)
-
Step 950
950 (this color)
#331F31
oklch(27.2% 0.043 330.2)
#331F31 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) | #1E2432 | 0.041 |
| Deuteranopia (no green cones) | #232730 | 0.039 |
| Tritanopia (no blue cones) | #352026 | 0.022 |
| Achromatopsia (no color) | #262626 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #331F31
#331F31
oklch(27.2% 0.043 330.2)
- #162D1C
#162D1C
oklch(27.2% 0.043 151.1)
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 #331F31, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.044
- Dark #1B2431 ΔE 0.046
- Oxford Blue #1B263B ΔE 0.048
- Space Cadet #2B2D42 ΔE 0.048
- Eggplant #380835 ΔE 0.058
- Aubergine #3D0734 ΔE 0.059
- Gunmetal #293241 ΔE 0.061
- Dark Plum #3F012C ΔE 0.067
Use #331F31 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.