#331B2B
Closest named color: Jet (#212529). oklch(26.1% 0.046 340.5), rgb(51, 27, 43).
Aa
White text reads best on this color (15.76:1).
About this color
#331B2B is a dark, muted purple. In OKLCH its lightness is 26%, its chroma 0.046 and its hue 341°. Its hue sits on the warm side of the wheel. The nearest named color is Jet (#212529), ΔE 0.047 away. White text reads best on it, at 15.76:1.
| Hue family | Purples |
| Lightness | dark (26%) |
| Chroma | muted (0.046) |
| Temperature | warm |
| Nearest name | Jet (#212529) |
| Black text | 1.33:1 |
| White text | 15.76:1 |
Values
| HEX | #331B2B |
| RGB | rgb(51, 27, 43) |
| HSL | hsl(320, 31%, 15%) |
| OKLCH | oklch(26.1% 0.046 340.5) |
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 #331B2B | 15.76:1 | AAA | Lc -105.2 | Preferred for body text |
| Black text on #331B2B | 1.33:1 | Fails | Lc 0.0 | Not readable |
| #331B2B text on white | 15.76:1 | AAA | Lc 102.6 | Preferred for body text |
| #331B2B text on black | 1.33:1 | 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
#F9F4F7
oklch(97.2% 0.007 340.4)
-
Step 100
100
#F2E6ED
oklch(93.6% 0.016 341.4)
-
Step 200
200
#E8D2DF
oklch(88.6% 0.03 341.4)
-
Step 300
300
#DAB3CB
oklch(80.8% 0.055 341)
-
Step 400
400
#C68BB1
oklch(70.7% 0.087 340.7)
-
Step 500
500
#B66E9E
oklch(63.2% 0.11 340.5)
-
Step 600
600
#A15489
oklch(55.5% 0.121 340.3)
-
Step 700
700
#8A4474
oklch(49.1% 0.113 340.6)
-
Step 800
800
#70395E
oklch(42.7% 0.092 341)
-
Step 900
900
#5B314D
oklch(37.7% 0.073 340.9)
-
Step 950
950 (this color)
#331B2B
oklch(26.1% 0.046 340.5)
#331B2B 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) | #1C202C | 0.047 |
| Deuteranopia (no green cones) | #22242A | 0.043 |
| Tritanopia (no blue cones) | #361B21 | 0.020 |
| Achromatopsia (no color) | #232323 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #331B2B
#331B2B
oklch(26.1% 0.046 340.5)
- #0C2B1D
#0C2B1D
oklch(26.1% 0.046 161.1)
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 #331B2B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.047
- Dark #1B2431 ΔE 0.051
- Eggplant #380835 ΔE 0.053
- Aubergine #3D0734 ΔE 0.054
- Oxford Blue #1B263B ΔE 0.056
- Dark Plum #3F012C ΔE 0.059
- Space Cadet #2B2D42 ΔE 0.061
- Dark Purple #35063E ΔE 0.066
Use #331B2B 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.