#8B66CC
Closest named color: Amethyst (#9B5FC0). oklch(59.3% 0.153 298.4), rgb(139, 102, 204).
Aa
Black text reads best on this color (4.87:1).
About this color
#8B66CC is a medium-dark, vivid purple. In OKLCH its lightness is 59%, its chroma 0.153 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Amethyst (#9B5FC0), ΔE 0.034 away. Black text reads best on it, at 4.87:1.
| Hue family | Purples |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.153) |
| Temperature | in between |
| Nearest name | Amethyst (#9B5FC0) |
| Black text | 4.87:1 |
| White text | 4.31:1 |
Values
| HEX | #8B66CC |
| RGB | rgb(139, 102, 204) |
| HSL | hsl(262, 50%, 60%) |
| OKLCH | oklch(59.3% 0.153 298.4) |
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 #8B66CC | 4.31:1 | AA large text | Lc -75.1 | Fine for body text |
| Black text on #8B66CC | 4.87:1 | AA | Lc 34.5 | Non-text elements, placeholder text |
| #8B66CC text on white | 4.31:1 | AA large text | Lc 69.6 | Content text, not long reading |
| #8B66CC text on black | 4.87:1 | AA | Lc -32.0 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EBE7F6
oklch(93.5% 0.021 298.2)
-
Step 200
200
#DCD4F0
oklch(88.5% 0.039 298.7)
-
Step 300
300
#C6B8E8
oklch(81% 0.068 298.2)
-
Step 400
400
#A991DC
oklch(70.6% 0.11 298.3)
-
Step 500
500
#9574D2
oklch(63.1% 0.14 298.5)
-
Step 600
600 (this color)
#8B66CC
oklch(59.3% 0.153 298.4)
-
Step 700
700
#6C4AA5
oklch(49.1% 0.142 298.3)
-
Step 800
800
#583D86
oklch(42.7% 0.118 298.3)
-
Step 900
900
#48356B
oklch(37.7% 0.091 298.1)
-
Step 950
950
#2A1F3F
oklch(26.9% 0.059 298.2)
#8B66CC 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) | #437AD0 | 0.101 |
| Deuteranopia (no green cones) | #4C79CA | 0.094 |
| Tritanopia (no blue cones) | #7D798F | 0.120 |
| Achromatopsia (no color) | #7A7A7A | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #8B66CC
#8B66CC
oklch(59.3% 0.153 298.4)
- #778900
#778900
oklch(59.5% 0.139 118.6)
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 #8B66CC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Amethyst #9B5FC0 ΔE 0.034
- Medium Purple #9370DB ΔE 0.034
- Deep Lavender #8D5EB7 ΔE 0.035
- Deep Lilac #966EBD ΔE 0.039
- Purpley #8756E4 ΔE 0.055
- Medium Slate Blue #7B68EE ΔE 0.057
- Light Indigo #6D5ACF ΔE 0.060
- Dark Periwinkle #665FD1 ΔE 0.064
Use #8B66CC 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.