#A66398
Closest named color: Dark Lilac (#9C6DA5). oklch(59.2% 0.111 335), rgb(166, 99, 152).
Aa
Black text reads best on this color (4.85:1).
About this color
#A66398 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 59%, its chroma 0.111 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 0.031 away. Black text reads best on it, at 4.85:1.
| Hue family | Purples |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.111) |
| Temperature | in between |
| Nearest name | Dark Lilac (#9C6DA5) |
| Black text | 4.85:1 |
| White text | 4.32:1 |
Values
| HEX | #A66398 |
| RGB | rgb(166, 99, 152) |
| HSL | hsl(313, 27%, 52%) |
| OKLCH | oklch(59.2% 0.111 335) |
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 #A66398 | 4.32:1 | AA large text | Lc -75.2 | Fine for body text |
| Black text on #A66398 | 4.85:1 | AA | Lc 34.4 | Non-text elements, placeholder text |
| #A66398 text on white | 4.32:1 | AA large text | Lc 69.7 | Content text, not long reading |
| #A66398 text on black | 4.85:1 | 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
#F8F4F7
oklch(97.1% 0.006 334)
-
Step 100
100
#F0E6EE
oklch(93.5% 0.015 332.2)
-
Step 200
200
#E5D3E0
oklch(88.5% 0.026 335.5)
-
Step 300
300
#D6B5CE
oklch(80.9% 0.05 334.6)
-
Step 400
400
#C08EB5
oklch(70.7% 0.08 334.4)
-
Step 500
500
#B071A2
oklch(63.1% 0.103 335.2)
-
Step 600
600 (this color)
#A66398
oklch(59.2% 0.111 335)
-
Step 700
700
#844878
oklch(49.1% 0.104 334.9)
-
Step 800
800
#6B3C61
oklch(42.7% 0.084 335.3)
-
Step 900
900
#573350
oklch(37.6% 0.068 334.2)
-
Step 950
950
#331E2F
oklch(26.9% 0.043 333.8)
#A66398 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) | #63739A | 0.111 |
| Deuteranopia (no green cones) | #747D96 | 0.101 |
| Tritanopia (no blue cones) | #AC6677 | 0.055 |
| Achromatopsia (no color) | #7A7A7A | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66398
#A66398
oklch(59.2% 0.111 335)
- #3E9160
#3E9160
oklch(59.2% 0.111 155)
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 #A66398, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Lilac #9C6DA5 ΔE 0.031
- Light Plum #9D5783 ΔE 0.042
- Faded Purple #916E99 ΔE 0.043
- Soft Purple #A66FB5 ΔE 0.047
- Dark Lavender #856798 ΔE 0.057
- Mauve #AE7181 ΔE 0.061
- Deep Lilac #966EBD ΔE 0.062
- Amethyst #9B5FC0 ΔE 0.069
Use #A66398 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.