#66166A
Closest named color: Rich Purple (#720058). oklch(37.4% 0.15 325.9), rgb(102, 22, 106).
Aa
White text reads best on this color (11.12:1).
About this color
#66166A is a dark, vivid purple. In OKLCH its lightness is 37%, its chroma 0.150 and its hue 326°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Purple (#720058), ΔE 0.043 away. White text reads best on it, at 11.12:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | vivid (0.150) |
| Temperature | in between |
| Nearest name | Rich Purple (#720058) |
| Black text | 1.88:1 |
| White text | 11.12:1 |
Values
| HEX | #66166A |
| RGB | rgb(102, 22, 106) |
| HSL | hsl(297, 66%, 25%) |
| OKLCH | oklch(37.4% 0.15 325.9) |
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 #66166A | 11.12:1 | AAA | Lc -98.6 | Preferred for body text |
| Black text on #66166A | 1.88:1 | Fails | Lc 9.3 | Not readable |
| #66166A text on white | 11.12:1 | AAA | Lc 94.6 | Preferred for body text |
| #66166A text on black | 1.88:1 | Fails | Lc -8.0 | 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
#FBF2FB
oklch(97.1% 0.015 325.7)
-
Step 100
100
#F6E3F6
oklch(93.7% 0.032 325.8)
-
Step 200
200
#F0CBF0
oklch(88.5% 0.064 326.1)
-
Step 300
300
#E7A7E8
oklch(81% 0.113 326.1)
-
Step 400
400
#D873DC
oklch(70.7% 0.181 325.9)
-
Step 500
500
#CB45D2
oklch(63% 0.231 325.8)
-
Step 600
600
#B713BF
oklch(55.7% 0.25 326)
-
Step 700
700
#9C00A3
oklch(49.1% 0.228 326)
-
Step 800
800
#800985
oklch(42.8% 0.193 326.3)
-
Step 900
900 (this color)
#66166A
oklch(37.4% 0.15 325.9)
-
Step 950
950
#3D103F
oklch(27.1% 0.096 326.1)
#66166A 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) | #00356C | 0.160 |
| Deuteranopia (no green cones) | #2A3F68 | 0.134 |
| Tritanopia (no blue cones) | #69253F | 0.086 |
| Achromatopsia (no color) | #3B3B3B | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66166A
#66166A
oklch(37.4% 0.15 325.9)
- #005014
#005014
oklch(37.5% 0.115 145.8)
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 #66166A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Purple #720058 ΔE 0.043
- Grape Purple #5D1451 ΔE 0.046
- Velvet #750851 ΔE 0.055
- Purple #800080 ΔE 0.064
- Royal Purple #4B006E ΔE 0.071
- Plum Purple #4E0550 ΔE 0.073
- Indigo #4B0082 ΔE 0.083
- Red Purple #820747 ΔE 0.088
Use #66166A 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.