#331A51
Closest named color: Dark Purple (#35063E). oklch(28.4% 0.097 301.4), rgb(51, 26, 81).
Aa
White text reads best on this color (14.92:1).
About this color
#331A51 is a dark, moderately saturated purple. In OKLCH its lightness is 28%, its chroma 0.097 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Purple (#35063E), ΔE 0.052 away. White text reads best on it, at 14.92:1.
| Hue family | Purples |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.097) |
| Temperature | in between |
| Nearest name | Dark Purple (#35063E) |
| Black text | 1.40:1 |
| White text | 14.92:1 |
Values
| HEX | #331A51 |
| RGB | rgb(51, 26, 81) |
| HSL | hsl(267, 51%, 21%) |
| OKLCH | oklch(28.4% 0.097 301.4) |
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 #331A51 | 14.92:1 | AAA | Lc -104.3 | Preferred for body text |
| Black text on #331A51 | 1.40:1 | Fails | Lc 0.0 | Not readable |
| #331A51 text on white | 14.92:1 | AAA | Lc 101.5 | Preferred for body text |
| #331A51 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
#EDE5FD
oklch(93.5% 0.033 300.9)
-
Step 200
200
#E0D0FD
oklch(88.5% 0.063 301.3)
-
Step 300
300
#CEAFFF
oklch(80.9% 0.115 301.7)
-
Step 400
400
#B680FF
oklch(70.7% 0.184 301.5)
-
Step 500
500
#A558FD
oklch(63.1% 0.235 301.4)
-
Step 600
600
#9132EC
oklch(55.6% 0.255 301.3)
-
Step 700
700
#7C20CD
oklch(49.1% 0.237 301.5)
-
Step 800
800
#651FA6
oklch(42.7% 0.197 301.6)
-
Step 900
900
#522384
oklch(37.8% 0.153 301.5)
-
Step 950
950 (this color)
#331A51
oklch(28.4% 0.097 301.4)
#331A51 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) | #002753 | 0.075 |
| Deuteranopia (no green cones) | #082750 | 0.070 |
| Tritanopia (no blue cones) | #2D2632 | 0.074 |
| Achromatopsia (no color) | #272727 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #331A51
#331A51
oklch(28.4% 0.097 301.4)
- #252F00
#252F00
oklch(28.5% 0.069 121.5)
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 #331A51, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Purple #35063E ΔE 0.052
- Eggplant Purple #430541 ΔE 0.056
- Deep Purple #36013F ΔE 0.058
- Deep Violet #490648 ΔE 0.058
- Dark Indigo #1F0954 ΔE 0.059
- Eggplant #380835 ΔE 0.062
- Plum Purple #4E0550 ΔE 0.065
- Aubergine #3D0734 ΔE 0.066
Use #331A51 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.