#7C66D3
Closest named color: Light Indigo (#6D5ACF). oklch(58.4% 0.161 289.7), rgb(124, 102, 211).
Aa
Black text reads best on this color (4.69:1).
About this color
#7C66D3 is a medium-dark, vivid purple. In OKLCH its lightness is 58%, its chroma 0.161 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Light Indigo (#6D5ACF), ΔE 0.039 away. Black text reads best on it, at 4.69:1.
| Hue family | Purples |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.161) |
| Temperature | cool |
| Nearest name | Light Indigo (#6D5ACF) |
| Black text | 4.69:1 |
| White text | 4.46:1 |
Values
| HEX | #7C66D3 |
| RGB | rgb(124, 102, 211) |
| HSL | hsl(252, 55%, 61%) |
| OKLCH | oklch(58.4% 0.161 289.7) |
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 #7C66D3 | 4.46:1 | AA large text | Lc -76.3 | Fine for body text |
| Black text on #7C66D3 | 4.69:1 | AA | Lc 33.3 | Non-text elements, placeholder text |
| #7C66D3 text on white | 4.46:1 | AA large text | Lc 70.8 | Content text, not long reading |
| #7C66D3 text on black | 4.69:1 | AA | Lc -30.9 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#E9E8F7
oklch(93.6% 0.02 289.1)
-
Step 200
200
#D8D5F3
oklch(88.5% 0.041 290.1)
-
Step 300
300
#BFB9ED
oklch(80.8% 0.073 289.9)
-
Step 400
400
#9F94E4
oklch(70.7% 0.116 289.4)
-
Step 500
500
#8977DC
oklch(63.1% 0.148 289.6)
-
Step 600
600 (this color)
#7C66D3
oklch(58.4% 0.161 289.7)
-
Step 700
700
#624CAE
oklch(49% 0.15 290.1)
-
Step 800
800
#503F8D
oklch(42.7% 0.124 290.2)
-
Step 900
900
#423671
oklch(37.7% 0.098 290.3)
-
Step 950
950
#262042
oklch(26.9% 0.062 289.7)
#7C66D3 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) | #3679D7 | 0.089 |
| Deuteranopia (no green cones) | #3875D1 | 0.086 |
| Tritanopia (no blue cones) | #647D93 | 0.133 |
| Achromatopsia (no color) | #777777 | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7C66D3
#7C66D3
oklch(58.4% 0.161 289.7)
- #818100
#818100
oklch(58.4% 0.127 109.8)
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 #7C66D3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Indigo #6D5ACF ΔE 0.039
- Dark Periwinkle #665FD1 ΔE 0.040
- Medium Slate Blue #7B68EE ΔE 0.041
- Slate Blue #6A5ACD ΔE 0.043
- Medium Purple #9370DB ΔE 0.047
- Purpley #8756E4 ΔE 0.047
- Deep Lavender #8D5EB7 ΔE 0.052
- Amethyst #9B5FC0 ΔE 0.059
Use #7C66D3 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.