#663163
Closest named color: Grape Purple (#5D1451). oklch(40.3% 0.103 329.4), rgb(102, 49, 99).
Aa
White text reads best on this color (9.61:1).
About this color
#663163 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.103 and its hue 329°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.067 away. White text reads best on it, at 9.61:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.103) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 2.18:1 |
| White text | 9.61:1 |
Values
| HEX | #663163 |
| RGB | rgb(102, 49, 99) |
| HSL | hsl(303, 35%, 30%) |
| OKLCH | oklch(40.3% 0.103 329.4) |
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 #663163 | 9.61:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #663163 | 2.18:1 | Fails | Lc 12.0 | Not readable |
| #663163 text on white | 9.61:1 | AAA | Lc 91.9 | Preferred for body text |
| #663163 text on black | 2.18:1 | Fails | Lc -10.5 | 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 800.
-
Step 50
50
#F9F4F8
oklch(97.2% 0.007 332.1)
-
Step 100
100
#F1E6F0
oklch(93.6% 0.018 328.5)
-
Step 200
200
#E6D2E4
oklch(88.5% 0.033 329)
-
Step 300
300
#D7B3D4
oklch(80.8% 0.061 328.8)
-
Step 400
400
#C38BBE
oklch(70.8% 0.096 329.6)
-
Step 500
500
#B26CAD
oklch(63% 0.123 329.5)
-
Step 600
600
#9D5399
oklch(55.6% 0.134 329.2)
-
Step 700
700
#864382
oklch(49% 0.124 329.5)
-
Step 800
800 (this color)
#663163
oklch(40.3% 0.103 329.4)
-
Step 900
900
#593156
oklch(37.8% 0.08 329.8)
-
Step 950
950
#341D32
oklch(27% 0.05 330)
#663163 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) | #2E4065 | 0.101 |
| Deuteranopia (no green cones) | #3D4761 | 0.091 |
| Tritanopia (no blue cones) | #693645 | 0.057 |
| Achromatopsia (no color) | #454545 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #663163
#663163
oklch(40.3% 0.103 329.4)
- #105727
#105727
oklch(40.2% 0.103 149.3)
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 #663163, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.067
- Velvet #750851 ΔE 0.067
- Rich Purple #720058 ΔE 0.071
- Purple Brown #673A3F ΔE 0.072
- Brownish Purple #76424E ΔE 0.075
- Red Purple #820747 ΔE 0.083
- Dark Slate Blue #483D8B ΔE 0.087
- Wine #80013F ΔE 0.089
Use #663163 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.