#66306B
Closest named color: Grape Purple (#5D1451). oklch(40.6% 0.113 324.1), rgb(102, 48, 107).
Aa
White text reads best on this color (9.54:1).
About this color
#66306B is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.113 and its hue 324°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.070 away. White text reads best on it, at 9.54:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.113) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 2.20:1 |
| White text | 9.54:1 |
Values
| HEX | #66306B |
| RGB | rgb(102, 48, 107) |
| HSL | hsl(295, 38%, 30%) |
| OKLCH | oklch(40.6% 0.113 324.1) |
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 #66306B | 9.54:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #66306B | 2.20:1 | Fails | Lc 12.3 | Not readable |
| #66306B text on white | 9.54:1 | AAA | Lc 91.7 | Preferred for body text |
| #66306B text on black | 2.20:1 | Fails | Lc -10.7 | 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
#F9F3F9
oklch(97% 0.01 325.7)
-
Step 100
100
#F1E6F1
oklch(93.7% 0.019 325.7)
-
Step 200
200
#E6D1E7
oklch(88.4% 0.037 324.5)
-
Step 300
300
#D7B3D9
oklch(81% 0.066 324.5)
-
Step 400
400
#C18AC6
oklch(70.7% 0.105 323.8)
-
Step 500
500
#B16BB7
oklch(63.1% 0.134 324.2)
-
Step 600
600
#9C51A3
oklch(55.6% 0.146 324.1)
-
Step 700
700
#85418C
oklch(49.1% 0.137 323.8)
-
Step 800
800 (this color)
#66306B
oklch(40.6% 0.113 324.1)
-
Step 900
900
#582F5C
oklch(37.6% 0.089 323.9)
-
Step 950
950
#341C36
oklch(27% 0.057 324.2)
#66306B 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) | #28416D | 0.109 |
| Deuteranopia (no green cones) | #394869 | 0.097 |
| Tritanopia (no blue cones) | #683749 | 0.066 |
| Achromatopsia (no color) | #454545 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66306B
#66306B
oklch(40.6% 0.113 324.1)
- #17581B
#17581B
oklch(40.6% 0.113 144)
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 #66306B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.070
- Rich Purple #720058 ΔE 0.071
- Velvet #750851 ΔE 0.071
- Rebecca Purple #663399 ΔE 0.076
- Dark Slate Blue #483D8B ΔE 0.079
- Purple #800080 ΔE 0.082
- Brownish Purple #76424E ΔE 0.086
- Purple Brown #673A3F ΔE 0.086
Use #66306B 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.