#8166C6
Closest named color: Deep Lavender (#8D5EB7). oklch(58% 0.144 294.4), rgb(129, 102, 198).
Aa
Black text reads best on this color (4.64:1).
About this color
#8166C6 is a medium-dark, vivid purple. In OKLCH its lightness is 58%, its chroma 0.144 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Deep Lavender (#8D5EB7), ΔE 0.033 away. Black text reads best on it, at 4.64:1.
| Hue family | Purples |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.144) |
| Temperature | in between |
| Nearest name | Deep Lavender (#8D5EB7) |
| Black text | 4.64:1 |
| White text | 4.51:1 |
Values
| HEX | #8166C6 |
| RGB | rgb(129, 102, 198) |
| HSL | hsl(257, 46%, 59%) |
| OKLCH | oklch(58% 0.144 294.4) |
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 #8166C6 | 4.51:1 | AA | Lc -76.6 | Fine for body text |
| Black text on #8166C6 | 4.64:1 | AA | Lc 32.9 | Non-text elements, placeholder text |
| #8166C6 text on white | 4.51:1 | AA | Lc 71.2 | Content text, not long reading |
| #8166C6 text on black | 4.64:1 | AA | Lc -30.5 | 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
#EAE8F6
oklch(93.7% 0.019 292.6)
-
Step 200
200
#DAD5EF
oklch(88.5% 0.036 294.5)
-
Step 300
300
#C3B9E7
oklch(80.9% 0.065 294.9)
-
Step 400
400
#A494DB
oklch(70.7% 0.103 293.9)
-
Step 500
500
#8F78D1
oklch(63.2% 0.132 294.2)
-
Step 600
600 (this color)
#8166C6
oklch(58% 0.144 294.4)
-
Step 700
700
#674EA4
oklch(49.2% 0.134 294.4)
-
Step 800
800
#544085
oklch(42.7% 0.111 294.6)
-
Step 900
900
#45376A
oklch(37.7% 0.086 294.6)
-
Step 950
950
#28203E
oklch(26.8% 0.055 294.7)
#8166C6 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) | #4477C9 | 0.085 |
| Deuteranopia (no green cones) | #4975C4 | 0.081 |
| Tritanopia (no blue cones) | #71798D | 0.116 |
| Achromatopsia (no color) | #767676 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #8166C6
#8166C6
oklch(58% 0.144 294.4)
- #798200
#798200
oklch(57.9% 0.131 114.5)
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 #8166C6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Lavender #8D5EB7 ΔE 0.033
- Deep Lilac #966EBD ΔE 0.046
- Amethyst #9B5FC0 ΔE 0.046
- Medium Purple #9370DB ΔE 0.049
- Light Indigo #6D5ACF ΔE 0.049
- Dark Periwinkle #665FD1 ΔE 0.051
- Slate Blue #6A5ACD ΔE 0.052
- Medium Slate Blue #7B68EE ΔE 0.061
Use #8166C6 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.