#51255D
Closest named color: Grape Purple (#5D1451). oklch(35.1% 0.105 318.6), rgb(81, 37, 93).
Aa
White text reads best on this color (11.84:1).
About this color
#51255D is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.105 and its hue 319°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.042 away. White text reads best on it, at 11.84:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.105) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.77:1 |
| White text | 11.84:1 |
Values
| HEX | #51255D |
| RGB | rgb(81, 37, 93) |
| HSL | hsl(287, 43%, 25%) |
| OKLCH | oklch(35.1% 0.105 318.6) |
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 #51255D | 11.84:1 | AAA | Lc -100.4 | Preferred for body text |
| Black text on #51255D | 1.77:1 | Fails | Lc 0.0 | Not readable |
| #51255D text on white | 11.84:1 | AAA | Lc 96.8 | Preferred for body text |
| #51255D text on black | 1.77:1 | 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 900.
-
Step 50
50
#F9F3FA
oklch(97.1% 0.011 321.3)
-
Step 100
100
#F1E5F4
oklch(93.6% 0.024 319.5)
-
Step 200
200
#E6D1EC
oklch(88.6% 0.043 318.7)
-
Step 300
300
#D7B1E2
oklch(81% 0.079 318.6)
-
Step 400
400
#C286D3
oklch(70.7% 0.127 318.6)
-
Step 500
500
#B265C7
oklch(63.1% 0.162 318.7)
-
Step 600
600
#9D4AB3
oklch(55.7% 0.174 318.8)
-
Step 700
700
#863A9A
oklch(49.1% 0.163 318.7)
-
Step 800
800
#6D317D
oklch(42.7% 0.134 318.7)
-
Step 900
900 (this color)
#51255D
oklch(35.1% 0.105 318.6)
-
Step 950
950
#341A3B
oklch(26.9% 0.068 318.8)
#51255D 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) | #19345F | 0.098 |
| Deuteranopia (no green cones) | #28395C | 0.086 |
| Tritanopia (no blue cones) | #512E3D | 0.067 |
| Achromatopsia (no color) | #373737 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51255D
#51255D
oklch(35.1% 0.105 318.6)
- #194705
#194705
oklch(35.2% 0.105 138.6)
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 #51255D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.042
- Plum Purple #4E0550 ΔE 0.059
- Deep Violet #490648 ΔE 0.068
- Royal Purple #4B006E ΔE 0.068
- Rich Purple #720058 ΔE 0.078
- Velvet #750851 ΔE 0.083
- Eggplant Purple #430541 ΔE 0.083
- Indigo #4B0082 ΔE 0.085
Use #51255D 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.