#501B63
Closest named color: Royal Purple (#4B006E). oklch(34% 0.127 315.7), rgb(80, 27, 99).
Aa
White text reads best on this color (12.51:1).
About this color
#501B63 is a dark, moderately saturated purple. In OKLCH its lightness is 34%, its chroma 0.127 and its hue 316°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Royal Purple (#4B006E), ΔE 0.043 away. White text reads best on it, at 12.51:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.127) |
| Temperature | in between |
| Nearest name | Royal Purple (#4B006E) |
| Black text | 1.67:1 |
| White text | 12.51:1 |
Values
| HEX | #501B63 |
| RGB | rgb(80, 27, 99) |
| HSL | hsl(284, 57%, 25%) |
| OKLCH | oklch(34% 0.127 315.7) |
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 #501B63 | 12.51:1 | AAA | Lc -101.2 | Preferred for body text |
| Black text on #501B63 | 1.67:1 | Fails | Lc 0.0 | Not readable |
| #501B63 text on white | 12.51:1 | AAA | Lc 97.7 | Preferred for body text |
| #501B63 text on black | 1.67:1 | 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
#F9F3FB
oklch(97.1% 0.012 317.7)
-
Step 100
100
#F1E5F7
oklch(93.7% 0.027 314.7)
-
Step 200
200
#E7CFF1
oklch(88.5% 0.053 316)
-
Step 300
300
#D9AEEB
oklch(80.9% 0.096 315.8)
-
Step 400
400
#C580E0
oklch(70.6% 0.153 316)
-
Step 500
500
#B55CD7
oklch(63.1% 0.194 315.7)
-
Step 600
600
#A13CC5
oklch(55.6% 0.212 315.7)
-
Step 700
700
#8A2CAA
oklch(49.1% 0.198 315.9)
-
Step 800
800
#70278A
oklch(42.8% 0.164 315.7)
-
Step 900
900 (this color)
#501B63
oklch(34% 0.127 315.7)
-
Step 950
950
#351740
oklch(26.9% 0.081 316.1)
#501B63 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) | #003165 | 0.121 |
| Deuteranopia (no green cones) | #1A3561 | 0.106 |
| Tritanopia (no blue cones) | #4F293C | 0.083 |
| Achromatopsia (no color) | #343434 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #501B63
#501B63
oklch(34% 0.127 315.7)
- #1D4300
#1D4300
oklch(34.1% 0.101 135.8)
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 #501B63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Purple #4B006E ΔE 0.043
- Grape Purple #5D1451 ΔE 0.044
- Plum Purple #4E0550 ΔE 0.045
- Deep Violet #490648 ΔE 0.059
- Indigo #4B0082 ΔE 0.064
- Eggplant Purple #430541 ΔE 0.075
- Rich Purple #720058 ΔE 0.078
- Velvet #750851 ΔE 0.088
Use #501B63 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.