#66166E
Closest named color: Rich Purple (#720058). oklch(37.7% 0.154 323.9), rgb(102, 22, 110).
Aa
White text reads best on this color (11.02:1).
About this color
#66166E is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.154 and its hue 324°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Purple (#720058), ΔE 0.048 away. White text reads best on it, at 11.02:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.154) |
| Temperature | in between |
| Nearest name | Rich Purple (#720058) |
| Black text | 1.90:1 |
| White text | 11.02:1 |
Values
| HEX | #66166E |
| RGB | rgb(102, 22, 110) |
| HSL | hsl(295, 67%, 26%) |
| OKLCH | oklch(37.7% 0.154 323.9) |
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 #66166E | 11.02:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #66166E | 1.90:1 | Fails | Lc 9.5 | Not readable |
| #66166E text on white | 11.02:1 | AAA | Lc 94.4 | Preferred for body text |
| #66166E text on black | 1.90:1 | Fails | Lc -8.2 | 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
#F6E3F7
oklch(93.7% 0.033 324.3)
-
Step 200
200
#EFCBF1
oklch(88.4% 0.064 324.5)
-
Step 300
300
#E6A7EB
oklch(81% 0.116 324.1)
-
Step 400
400
#D773E0
oklch(70.7% 0.184 324.2)
-
Step 500
500
#CA44D8
oklch(63.1% 0.236 323.8)
-
Step 600
600
#B50DC5
oklch(55.6% 0.256 323.8)
-
Step 700
700
#9A00A8
oklch(49.1% 0.231 323.8)
-
Step 800
800
#7F058A
oklch(42.8% 0.198 324)
-
Step 900
900 (this color)
#66166E
oklch(37.7% 0.154 323.9)
-
Step 950
950
#3C1041
oklch(27% 0.098 323.5)
#66166E 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) | #003670 | 0.159 |
| Deuteranopia (no green cones) | #273F6C | 0.136 |
| Tritanopia (no blue cones) | #682741 | 0.091 |
| Achromatopsia (no color) | #3C3C3C | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66166E
#66166E
oklch(37.7% 0.154 323.9)
- #00510A
#00510A
oklch(37.7% 0.123 143.9)
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 #66166E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Purple #720058 ΔE 0.048
- Grape Purple #5D1451 ΔE 0.053
- Purple #800080 ΔE 0.061
- Velvet #750851 ΔE 0.061
- Royal Purple #4B006E ΔE 0.070
- Plum Purple #4E0550 ΔE 0.077
- Indigo #4B0082 ΔE 0.079
- Rebecca Purple #663399 ΔE 0.085
Use #66166E 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.