#331D33
Closest named color: Dark (#1B2431). oklch(26.9% 0.05 326.9), rgb(51, 29, 51).
Aa
White text reads best on this color (15.39:1).
About this color
#331D33 is a dark, muted purple. In OKLCH its lightness is 27%, its chroma 0.050 and its hue 327°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.049 away. White text reads best on it, at 15.39:1.
| Hue family | Purples |
| Lightness | dark (27%) |
| Chroma | muted (0.050) |
| Temperature | in between |
| Nearest name | Dark (#1B2431) |
| Black text | 1.36:1 |
| White text | 15.39:1 |
Values
| HEX | #331D33 |
| RGB | rgb(51, 29, 51) |
| HSL | hsl(300, 28%, 16%) |
| OKLCH | oklch(26.9% 0.05 326.9) |
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 #331D33 | 15.39:1 | AAA | Lc -104.9 | Preferred for body text |
| Black text on #331D33 | 1.36:1 | Fails | Lc 0.0 | Not readable |
| #331D33 text on white | 15.39:1 | AAA | Lc 102.2 | Preferred for body text |
| #331D33 text on black | 1.36:1 | 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
#F0E6F0
oklch(93.6% 0.017 325.7)
-
Step 200
200
#E5D2E5
oklch(88.5% 0.033 325.9)
-
Step 300
300
#D6B4D5
oklch(81% 0.059 327)
-
Step 400
400
#C08CC0
oklch(70.8% 0.094 326.5)
-
Step 500
500
#B06EB0
oklch(63.2% 0.121 326.9)
-
Step 600
600
#9B549B
oklch(55.6% 0.133 327.2)
-
Step 700
700
#844485
oklch(49.1% 0.124 326.7)
-
Step 800
800
#6B396C
oklch(42.7% 0.101 326.5)
-
Step 900
900
#573157
oklch(37.6% 0.079 327)
-
Step 950
950 (this color)
#331D33
oklch(26.9% 0.05 326.9)
#331D33 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) | #1B2334 | 0.047 |
| Deuteranopia (no green cones) | #212632 | 0.043 |
| Tritanopia (no blue cones) | #341F25 | 0.029 |
| Achromatopsia (no color) | #252525 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #331D33
#331D33
oklch(26.9% 0.05 326.9)
- #142D17
#142D17
oklch(27% 0.051 146.6)
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 #331D33, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.049
- Oxford Blue #1B263B ΔE 0.050
- Jet #212529 ΔE 0.050
- Eggplant #380835 ΔE 0.051
- Space Cadet #2B2D42 ΔE 0.051
- Aubergine #3D0734 ΔE 0.052
- Dark Purple #35063E ΔE 0.060
- Dark Plum #3F012C ΔE 0.062
Use #331D33 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.