#331B4D
Closest named color: Dark Purple (#35063E). oklch(28.2% 0.09 303.2), rgb(51, 27, 77).
Aa
White text reads best on this color (14.94:1).
About this color
#331B4D is a dark, moderately saturated purple. In OKLCH its lightness is 28%, its chroma 0.090 and its hue 303°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Purple (#35063E), ΔE 0.050 away. White text reads best on it, at 14.94:1.
| Hue family | Purples |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.090) |
| Temperature | in between |
| Nearest name | Dark Purple (#35063E) |
| Black text | 1.40:1 |
| White text | 14.94:1 |
Values
| HEX | #331B4D |
| RGB | rgb(51, 27, 77) |
| HSL | hsl(269, 48%, 20%) |
| OKLCH | oklch(28.2% 0.09 303.2) |
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 #331B4D | 14.94:1 | AAA | Lc -104.4 | Preferred for body text |
| Black text on #331B4D | 1.40:1 | Fails | Lc 0.0 | Not readable |
| #331B4D text on white | 14.94:1 | AAA | Lc 101.6 | Preferred for body text |
| #331B4D text on black | 1.40:1 | 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
#F7F3FE
oklch(97% 0.015 302.6)
-
Step 100
100
#EEE5FB
oklch(93.5% 0.031 304.3)
-
Step 200
200
#E1D0FA
oklch(88.5% 0.06 303.6)
-
Step 300
300
#CFB0F9
oklch(81% 0.106 303.6)
-
Step 400
400
#B782F6
oklch(70.6% 0.17 303.4)
-
Step 500
500
#A65CF2
oklch(63% 0.218 303.4)
-
Step 600
600
#923BE1
oklch(55.7% 0.236 303.2)
-
Step 700
700
#7C2AC3
oklch(49% 0.219 303.2)
-
Step 800
800
#65269E
oklch(42.7% 0.182 303.2)
-
Step 900
900
#52267D
oklch(37.7% 0.141 303.4)
-
Step 950
950 (this color)
#331B4D
oklch(28.2% 0.09 303.2)
#331B4D 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) | #05264F | 0.070 |
| Deuteranopia (no green cones) | #0F274C | 0.064 |
| Tritanopia (no blue cones) | #2E2531 | 0.066 |
| Achromatopsia (no color) | #272727 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #331B4D
#331B4D
oklch(28.2% 0.09 303.2)
- #232F00
#232F00
oklch(28.4% 0.07 123.5)
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 #331B4D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Purple #35063E ΔE 0.050
- Eggplant Purple #430541 ΔE 0.054
- Deep Purple #36013F ΔE 0.056
- Eggplant #380835 ΔE 0.057
- Deep Violet #490648 ΔE 0.058
- Aubergine #3D0734 ΔE 0.061
- Space Cadet #2B2D42 ΔE 0.061
- Dark Indigo #1F0954 ΔE 0.062
Use #331B4D 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.