#C666E5
Closest named color: Bright Lilac (#C95EFB). oklch(67.2% 0.2 317.2), rgb(198, 102, 229).
Aa
Black text reads best on this color (6.43:1).
About this color
#C666E5 is a medium-light, vivid purple. In OKLCH its lightness is 67%, its chroma 0.200 and its hue 317°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bright Lilac (#C95EFB), ΔE 0.038 away. Black text reads best on it, at 6.43:1.
| Hue family | Purples |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.200) |
| Temperature | in between |
| Nearest name | Bright Lilac (#C95EFB) |
| Black text | 6.43:1 |
| White text | 3.26:1 |
Values
| HEX | #C666E5 |
| RGB | rgb(198, 102, 229) |
| HSL | hsl(285, 71%, 65%) |
| OKLCH | oklch(67.2% 0.2 317.2) |
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 #C666E5 | 3.26:1 | AA large text | Lc -64.9 | Content text, not long reading |
| Black text on #C666E5 | 6.43:1 | AA | Lc 44.6 | Non-text elements, placeholder text |
| #C666E5 text on white | 3.26:1 | AA large text | Lc 59.5 | Large or bold text, headings |
| #C666E5 text on black | 6.43:1 | AA | Lc -42.3 | 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 400.
-
Step 50
50
#FAF2FD
oklch(97% 0.017 316.9)
-
Step 100
100
#F4E3FA
oklch(93.6% 0.036 317.3)
-
Step 200
200
#ECCBF8
oklch(88.4% 0.07 317)
-
Step 300
300
#E2A7F6
oklch(81% 0.125 317.4)
-
Step 400
400 (this color)
#C666E5
oklch(67.2% 0.2 317.2)
-
Step 500
500
#C43FEC
oklch(63.1% 0.256 317.1)
-
Step 600
600
#AF00D7
oklch(55.7% 0.271 317.4)
-
Step 700
700
#9300B6
oklch(49% 0.239 317.1)
-
Step 800
800
#7A0097
oklch(42.8% 0.208 317.3)
-
Step 900
900
#63117A
oklch(37.7% 0.168 317.1)
-
Step 950
950
#3A0E47
oklch(26.9% 0.106 317.3)
#C666E5 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) | #4888E9 | 0.184 |
| Deuteranopia (no green cones) | #6A91E2 | 0.161 |
| Tritanopia (no blue cones) | #C57A9C | 0.129 |
| Achromatopsia (no color) | #8E8E8E | 0.202 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C666E5
#C666E5
oklch(67.2% 0.2 317.2)
- #50B00F
#50B00F
oklch(67.2% 0.2 137.2)
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 #C666E5, closest first.
No curated palette has a color within ΔE 0.04 of #C666E5.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bright Lilac #C95EFB ΔE 0.038
- Light Purple #BF77F6 ΔE 0.041
- Easter Purple #C071FE ΔE 0.041
- Bright Lavender #C760FF ΔE 0.042
- Light Urple #B36FF6 ΔE 0.043
- Medium Orchid #BA55D3 ΔE 0.047
- Orchid #DA70D6 ΔE 0.052
- Heliotrope #D94FF5 ΔE 0.055
Use #C666E5 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.