#331550
Closest named color: Dark Purple (#35063E). oklch(27.5% 0.104 303.6), rgb(51, 21, 80).
Aa
White text reads best on this color (15.39:1).
About this color
#331550 is a dark, moderately saturated purple. In OKLCH its lightness is 28%, its chroma 0.104 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Purple (#35063E), ΔE 0.043 away. White text reads best on it, at 15.39:1.
| Hue family | Purples |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.104) |
| Temperature | in between |
| Nearest name | Dark Purple (#35063E) |
| Black text | 1.36:1 |
| White text | 15.39:1 |
Values
| HEX | #331550 |
| RGB | rgb(51, 21, 80) |
| HSL | hsl(271, 58%, 20%) |
| OKLCH | oklch(27.5% 0.104 303.6) |
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 #331550 | 15.39:1 | AAA | Lc -104.7 | Preferred for body text |
| Black text on #331550 | 1.36:1 | Fails | Lc 0.0 | Not readable |
| #331550 text on white | 15.39:1 | AAA | Lc 101.9 | Preferred for body text |
| #331550 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
#F8F3FF
oklch(97.1% 0.017 304.8)
-
Step 100
100
#EFE5FE
oklch(93.7% 0.035 303.8)
-
Step 200
200
#E2CFFF
oklch(88.5% 0.068 303.1)
-
Step 300
300
#D1AEFF
oklch(81% 0.117 303.7)
-
Step 400
400
#BA7DFF
oklch(70.6% 0.189 303.6)
-
Step 500
500
#AB51FF
oklch(63.1% 0.246 303.7)
-
Step 600
600
#9821F1
oklch(55.7% 0.273 303.6)
-
Step 700
700
#8207D1
oklch(49.1% 0.253 303.8)
-
Step 800
800
#6913A9
oklch(42.6% 0.21 303.6)
-
Step 900
900
#551D86
oklch(37.7% 0.163 303.5)
-
Step 950
950 (this color)
#331550
oklch(27.5% 0.104 303.6)
#331550 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) | #002452 | 0.079 |
| Deuteranopia (no green cones) | #01254F | 0.080 |
| Tritanopia (no blue cones) | #2D2230 | 0.075 |
| Achromatopsia (no color) | #252525 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #331550
#331550
oklch(27.5% 0.104 303.6)
- #212D00
#212D00
oklch(27.6% 0.068 123.9)
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 #331550, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Purple #35063E ΔE 0.043
- Deep Purple #36013F ΔE 0.048
- Eggplant Purple #430541 ΔE 0.051
- Dark Indigo #1F0954 ΔE 0.053
- Deep Violet #490648 ΔE 0.055
- Eggplant #380835 ΔE 0.056
- Aubergine #3D0734 ΔE 0.061
- Plum Purple #4E0550 ΔE 0.062
Use #331550 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.