#A66FEC
Closest named color: Light Urple (#B36FF6). oklch(65.4% 0.184 301.9), rgb(166, 111, 236).
Aa
Black text reads best on this color (6.10:1).
About this color
#A66FEC is a medium-light, vivid purple. In OKLCH its lightness is 65%, its chroma 0.184 and its hue 302°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Urple (#B36FF6), ΔE 0.026 away. Black text reads best on it, at 6.10:1.
| Hue family | Purples |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.184) |
| Temperature | in between |
| Nearest name | Light Urple (#B36FF6) |
| Black text | 6.10:1 |
| White text | 3.43:1 |
Values
| HEX | #A66FEC |
| RGB | rgb(166, 111, 236) |
| HSL | hsl(266, 77%, 68%) |
| OKLCH | oklch(65.4% 0.184 301.9) |
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 #A66FEC | 3.43:1 | AA large text | Lc -67.1 | Content text, not long reading |
| Black text on #A66FEC | 6.10:1 | AA | Lc 42.5 | Non-text elements, placeholder text |
| #A66FEC text on white | 3.43:1 | AA large text | Lc 61.6 | Content text, not long reading |
| #A66FEC text on black | 6.10:1 | AA | Lc -40.1 | 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
#EDE6F9
oklch(93.6% 0.026 302.6)
-
Step 200
200
#DFD2F5
oklch(88.5% 0.049 302.3)
-
Step 300
300
#CBB3F2
oklch(80.9% 0.091 301.8)
-
Step 400
400
#B189EB
oklch(70.7% 0.144 301.6)
-
Step 500
500 (this color)
#A66FEC
oklch(65.4% 0.184 301.9)
-
Step 600
600
#8B4BD2
oklch(55.6% 0.2 302.1)
-
Step 700
700
#763BB6
oklch(49.1% 0.186 301.9)
-
Step 800
800
#603293
oklch(42.7% 0.153 302.1)
-
Step 900
900
#4E2D75
oklch(37.6% 0.12 302.1)
-
Step 950
950
#2E1B45
oklch(27% 0.077 302.4)
#A66FEC 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) | #4189F0 | 0.135 |
| Deuteranopia (no green cones) | #538AE9 | 0.123 |
| Tritanopia (no blue cones) | #9987A3 | 0.139 |
| Achromatopsia (no color) | #8A8A8A | 0.185 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66FEC
#A66FEC
oklch(65.4% 0.184 301.9)
- #819E00
#819E00
oklch(65.3% 0.158 121.8)
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 #A66FEC, closest first.
No curated palette has a color within ΔE 0.04 of #A66FEC.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Urple #B36FF6 ΔE 0.026
- Medium Purple #9370DB ΔE 0.040
- Lighter Purple #A55AF4 ΔE 0.047
- Light Purple #BF77F6 ΔE 0.049
- Easter Purple #C071FE ΔE 0.051
- Periwinkle #8E82FE ΔE 0.057
- Medium Orchid #BA55D3 ΔE 0.067
- Lavender Blue #8B88F8 ΔE 0.067
Use #A66FEC 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.