#51255A
Closest named color: Grape Purple (#5D1451). oklch(34.9% 0.101 320.6), rgb(81, 37, 90).
Aa
White text reads best on this color (11.91:1).
About this color
#51255A is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.101 and its hue 321°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.040 away. White text reads best on it, at 11.91:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.101) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.76:1 |
| White text | 11.91:1 |
Values
| HEX | #51255A |
| RGB | rgb(81, 37, 90) |
| HSL | hsl(290, 42%, 25%) |
| OKLCH | oklch(34.9% 0.101 320.6) |
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 #51255A | 11.91:1 | AAA | Lc -100.5 | Preferred for body text |
| Black text on #51255A | 1.76:1 | Fails | Lc 0.0 | Not readable |
| #51255A text on white | 11.91:1 | AAA | Lc 96.9 | Preferred for body text |
| #51255A text on black | 1.76:1 | 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
#F1E5F3
oklch(93.5% 0.023 321.4)
-
Step 200
200
#E6D1EB
oklch(88.6% 0.042 319.7)
-
Step 300
300
#D7B1DF
oklch(80.9% 0.076 320.4)
-
Step 400
400
#C387CF
oklch(70.8% 0.121 320.7)
-
Step 500
500
#B366C2
oklch(63.1% 0.156 320.9)
-
Step 600
600
#9E4BAF
oklch(55.7% 0.169 320.6)
-
Step 700
700
#873B96
oklch(49.1% 0.157 320.7)
-
Step 800
800
#6E327A
oklch(42.8% 0.13 320.7)
-
Step 900
900 (this color)
#51255A
oklch(34.9% 0.101 320.6)
-
Step 950
950
#341B39
oklch(27% 0.063 320.8)
#51255A 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) | #1B345C | 0.096 |
| Deuteranopia (no green cones) | #2A3959 | 0.084 |
| Tritanopia (no blue cones) | #522D3B | 0.064 |
| Achromatopsia (no color) | #373737 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51255A
#51255A
oklch(34.9% 0.101 320.6)
- #16460C
#16460C
oklch(34.8% 0.101 140.6)
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 #51255A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.040
- Plum Purple #4E0550 ΔE 0.058
- Deep Violet #490648 ΔE 0.066
- Royal Purple #4B006E ΔE 0.072
- Rich Purple #720058 ΔE 0.078
- Eggplant Purple #430541 ΔE 0.080
- Velvet #750851 ΔE 0.081
- Space Cadet #2B2D42 ΔE 0.089
Use #51255A 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.