#A166E1
Closest named color: Medium Purple (#9370DB). oklch(62.8% 0.183 303.7), rgb(161, 102, 225).
Aa
Black text reads best on this color (5.50:1).
About this color
#A166E1 is a medium-light, vivid purple. In OKLCH its lightness is 63%, its chroma 0.183 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Purple (#9370DB), ΔE 0.033 away. Black text reads best on it, at 5.50:1.
| Hue family | Purples |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.183) |
| Temperature | in between |
| Nearest name | Medium Purple (#9370DB) |
| Black text | 5.50:1 |
| White text | 3.81:1 |
Values
| HEX | #A166E1 |
| RGB | rgb(161, 102, 225) |
| HSL | hsl(269, 67%, 64%) |
| OKLCH | oklch(62.8% 0.183 303.7) |
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 #A166E1 | 3.81:1 | AA large text | Lc -70.8 | Content text, not long reading |
| Black text on #A166E1 | 5.50:1 | AA | Lc 38.8 | Non-text elements, placeholder text |
| #A166E1 text on white | 3.81:1 | AA large text | Lc 65.3 | Content text, not long reading |
| #A166E1 text on black | 5.50:1 | AA | Lc -36.3 | 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
#F7F4FC
oklch(97.2% 0.011 303.1)
-
Step 100
100
#EDE6F8
oklch(93.6% 0.025 303.5)
-
Step 200
200
#E0D2F5
oklch(88.6% 0.05 303.5)
-
Step 300
300
#CDB3F0
oklch(81% 0.089 303.9)
-
Step 400
400
#B488E9
oklch(70.7% 0.144 303.9)
-
Step 500
500 (this color)
#A166E1
oklch(62.8% 0.183 303.7)
-
Step 600
600
#8D4AD0
oklch(55.6% 0.199 303.5)
-
Step 700
700
#783AB4
oklch(49.1% 0.185 303.5)
-
Step 800
800
#623192
oklch(42.7% 0.154 303.7)
-
Step 900
900
#502D74
oklch(37.8% 0.119 304)
-
Step 950
950
#2F1B44
oklch(27.1% 0.076 304.3)
#A166E1 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) | #3881E5 | 0.141 |
| Deuteranopia (no green cones) | #4D82DE | 0.127 |
| Tritanopia (no blue cones) | #957E9A | 0.137 |
| Achromatopsia (no color) | #838383 | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A166E1
#A166E1
oklch(62.8% 0.183 303.7)
- #769700
#769700
oklch(62.8% 0.155 123.7)
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 #A166E1, closest first.
No curated palette has a color within ΔE 0.04 of #A166E1.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Purple #9370DB ΔE 0.033
- Lighter Purple #A55AF4 ΔE 0.039
- Light Urple #B36FF6 ΔE 0.047
- Amethyst #9B5FC0 ΔE 0.051
- Medium Orchid #BA55D3 ΔE 0.055
- Purpley #8756E4 ΔE 0.060
- Deep Lilac #966EBD ΔE 0.063
- Medium Slate Blue #7B68EE ΔE 0.065
Use #A166E1 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.