#A66599
Closest named color: Dark Lilac (#9C6DA5). oklch(59.6% 0.108 334.5), rgb(166, 101, 153).
Aa
Black text reads best on this color (4.94:1).
About this color
#A66599 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 60%, its chroma 0.108 and its hue 335°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Lilac (#9C6DA5), ΔE 0.027 away. Black text reads best on it, at 4.94:1.
| Hue family | Purples |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.108) |
| Temperature | in between |
| Nearest name | Dark Lilac (#9C6DA5) |
| Black text | 4.94:1 |
| White text | 4.24:1 |
Values
| HEX | #A66599 |
| RGB | rgb(166, 101, 153) |
| HSL | hsl(312, 27%, 52%) |
| OKLCH | oklch(59.6% 0.108 334.5) |
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 #A66599 | 4.24:1 | AA large text | Lc -74.6 | Content text, not long reading |
| Black text on #A66599 | 4.94:1 | AA | Lc 34.9 | Non-text elements, placeholder text |
| #A66599 text on white | 4.24:1 | AA large text | Lc 69.2 | Content text, not long reading |
| #A66599 text on black | 4.94:1 | AA | Lc -32.5 | 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 500.
-
Step 50
50
#F9F4F7
oklch(97.2% 0.007 340.4)
-
Step 100
100
#F1E6EE
oklch(93.6% 0.016 335.1)
-
Step 200
200
#E6D2E1
oklch(88.4% 0.03 334.4)
-
Step 300
300
#D7B4CF
oklch(80.9% 0.054 334.1)
-
Step 400
400
#C28DB6
oklch(70.8% 0.084 334.8)
-
Step 500
500 (this color)
#A66599
oklch(59.6% 0.108 334.5)
-
Step 600
600
#9C578F
oklch(55.6% 0.117 334.4)
-
Step 700
700
#85467A
oklch(49% 0.11 334)
-
Step 800
800
#6D3A63
oklch(42.7% 0.092 334.8)
-
Step 900
900
#583251
oklch(37.6% 0.072 333.9)
-
Step 950
950
#341E2F
oklch(27.1% 0.044 335.4)
#A66599 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) | #65759B | 0.107 |
| Deuteranopia (no green cones) | #757E97 | 0.098 |
| Tritanopia (no blue cones) | #AC6878 | 0.055 |
| Achromatopsia (no color) | #7B7B7B | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66599
#A66599
oklch(59.6% 0.108 334.5)
- #429261
#429261
oklch(59.6% 0.109 154.4)
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 #A66599, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Lilac #9C6DA5 ΔE 0.027
- Faded Purple #916E99 ΔE 0.040
- Soft Purple #A66FB5 ΔE 0.044
- Light Plum #9D5783 ΔE 0.046
- Dark Lavender #856798 ΔE 0.057
- Mauve #AE7181 ΔE 0.058
- Deep Lilac #966EBD ΔE 0.060
- Grey Purple #826D8C ΔE 0.068
Use #A66599 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.