#C566E1
Closest named color: Bright Lilac (#C95EFB). oklch(66.9% 0.196 318), rgb(197, 102, 225).
Aa
Black text reads best on this color (6.36:1).
About this color
#C566E1 is a medium-light, vivid purple. In OKLCH its lightness is 67%, its chroma 0.196 and its hue 318°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bright Lilac (#C95EFB), ΔE 0.043 away. Black text reads best on it, at 6.36:1.
| Hue family | Purples |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.196) |
| Temperature | in between |
| Nearest name | Bright Lilac (#C95EFB) |
| Black text | 6.36:1 |
| White text | 3.30:1 |
Values
| HEX | #C566E1 |
| RGB | rgb(197, 102, 225) |
| HSL | hsl(286, 67%, 64%) |
| OKLCH | oklch(66.9% 0.196 318) |
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 #C566E1 | 3.30:1 | AA large text | Lc -65.3 | Content text, not long reading |
| Black text on #C566E1 | 6.36:1 | AA | Lc 44.2 | Non-text elements, placeholder text |
| #C566E1 text on white | 3.30:1 | AA large text | Lc 59.9 | Large or bold text, headings |
| #C566E1 text on black | 6.36:1 | AA | Lc -41.8 | 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
#F9F3FB
oklch(97.1% 0.012 317.7)
-
Step 100
100
#F2E4F6
oklch(93.5% 0.028 318.7)
-
Step 200
200
#E8CFF0
oklch(88.5% 0.052 317.9)
-
Step 300
300
#DBADE9
oklch(80.9% 0.096 318.2)
-
Step 400
400
#C87FDE
oklch(70.7% 0.154 318.1)
-
Step 500
500 (this color)
#C566E1
oklch(66.9% 0.196 318)
-
Step 600
600
#A43AC1
oklch(55.6% 0.212 318.1)
-
Step 700
700
#8C2AA7
oklch(49% 0.198 317.8)
-
Step 800
800
#722587
oklch(42.6% 0.164 318.1)
-
Step 900
900
#5C256C
oklch(37.6% 0.127 317.9)
-
Step 950
950
#36173F
oklch(27% 0.08 318.1)
#C566E1 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) | #4B87E5 | 0.181 |
| Deuteranopia (no green cones) | #6B91DE | 0.160 |
| Tritanopia (no blue cones) | #C5799A | 0.126 |
| Achromatopsia (no color) | #8D8D8D | 0.197 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C566E1
#C566E1
oklch(66.9% 0.196 318)
- #4EAF1C
#4EAF1C
oklch(66.9% 0.196 138)
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 #C566E1, closest first.
No curated palette has a color within ΔE 0.04 of #C566E1.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bright Lilac #C95EFB ΔE 0.043
- Light Purple #BF77F6 ΔE 0.044
- Medium Orchid #BA55D3 ΔE 0.044
- Light Urple #B36FF6 ΔE 0.045
- Easter Purple #C071FE ΔE 0.046
- Bright Lavender #C760FF ΔE 0.047
- Orchid #DA70D6 ΔE 0.051
- Heliotrope #D94FF5 ΔE 0.060
Use #C566E1 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.