#331B41
Closest named color: Dark Purple (#35063E). oklch(27.4% 0.073 311.6), rgb(51, 27, 65).
Aa
White text reads best on this color (15.28:1).
About this color
#331B41 is a dark, moderately saturated purple. In OKLCH its lightness is 27%, its chroma 0.073 and its hue 312°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Purple (#35063E), ΔE 0.045 away. White text reads best on it, at 15.28:1.
| Hue family | Purples |
| Lightness | dark (27%) |
| Chroma | moderately saturated (0.073) |
| Temperature | in between |
| Nearest name | Dark Purple (#35063E) |
| Black text | 1.37:1 |
| White text | 15.28:1 |
Values
| HEX | #331B41 |
| RGB | rgb(51, 27, 65) |
| HSL | hsl(278, 41%, 18%) |
| OKLCH | oklch(27.4% 0.073 311.6) |
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 #331B41 | 15.28:1 | AAA | Lc -104.8 | Preferred for body text |
| Black text on #331B41 | 1.37:1 | Fails | Lc 0.0 | Not readable |
| #331B41 text on white | 15.28:1 | AAA | Lc 102.0 | Preferred for body text |
| #331B41 text on black | 1.37:1 | 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
#F8F3FB
oklch(97% 0.012 313.2)
-
Step 100
100
#EFE5F6
oklch(93.5% 0.025 311.7)
-
Step 200
200
#E4D1F1
oklch(88.6% 0.048 311.7)
-
Step 300
300
#D3B1EA
oklch(80.9% 0.087 311.4)
-
Step 400
400
#BD86DF
oklch(70.7% 0.138 311.6)
-
Step 500
500
#AC64D6
oklch(63.1% 0.177 311.5)
-
Step 600
600
#9847C3
oklch(55.6% 0.193 311.8)
-
Step 700
700
#8137A8
oklch(49% 0.179 311.7)
-
Step 800
800
#692F88
oklch(42.6% 0.148 311.8)
-
Step 900
900
#552B6D
oklch(37.6% 0.115 311.5)
-
Step 950
950 (this color)
#331B41
oklch(27.4% 0.073 311.6)
#331B41 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) | #112442 | 0.062 |
| Deuteranopia (no green cones) | #192640 | 0.055 |
| Tritanopia (no blue cones) | #31212B | 0.050 |
| Achromatopsia (no color) | #252525 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #331B41
#331B41
oklch(27.4% 0.073 311.6)
- #192E02
#192E02
oklch(27.3% 0.073 132)
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 #331B41, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Purple #35063E ΔE 0.045
- Eggplant #380835 ΔE 0.045
- Aubergine #3D0734 ΔE 0.048
- Eggplant Purple #430541 ΔE 0.051
- Deep Purple #36013F ΔE 0.053
- Space Cadet #2B2D42 ΔE 0.055
- Oxford Blue #1B263B ΔE 0.056
- Deep Violet #490648 ΔE 0.060
Use #331B41 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.