#7C66FB
Closest named color: Medium Slate Blue (#7B68EE). oklch(61.1% 0.213 284.9), rgb(124, 102, 251).
Aa
Black text reads best on this color (5.15:1).
About this color
#7C66FB is a medium-dark, vivid purple. In OKLCH its lightness is 61%, its chroma 0.213 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.020 away. Black text reads best on it, at 5.15:1.
| Hue family | Purples |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.213) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 5.15:1 |
| White text | 4.07:1 |
Values
| HEX | #7C66FB |
| RGB | rgb(124, 102, 251) |
| HSL | hsl(249, 95%, 69%) |
| OKLCH | oklch(61.1% 0.213 284.9) |
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 #7C66FB | 4.07:1 | AA large text | Lc -73.0 | Content text, not long reading |
| Black text on #7C66FB | 5.15:1 | AA | Lc 36.6 | Non-text elements, placeholder text |
| #7C66FB text on white | 4.07:1 | AA large text | Lc 67.5 | Content text, not long reading |
| #7C66FB text on black | 5.15:1 | AA | Lc -34.1 | 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
#F4F4FF
oklch(97% 0.015 286.1)
-
Step 100
100
#E7E8FE
oklch(93.7% 0.03 283.7)
-
Step 200
200
#D4D5FF
oklch(88.6% 0.058 284.1)
-
Step 300
300
#B9B8FF
oklch(80.9% 0.1 284.6)
-
Step 400
400
#988FFF
oklch(70.7% 0.16 285.2)
-
Step 500
500 (this color)
#7C66FB
oklch(61.1% 0.213 284.9)
-
Step 600
600
#6E4EF1
oklch(55.6% 0.231 285.1)
-
Step 700
700
#5C3DD2
oklch(49.1% 0.215 284.8)
-
Step 800
800
#4B34AA
oklch(42.7% 0.178 284.9)
-
Step 900
900
#3E3086
oklch(37.8% 0.138 285.2)
-
Step 950
950
#241D4F
oklch(27.1% 0.088 285.2)
#7C66FB 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) | #0082FF | 0.107 |
| Deuteranopia (no green cones) | #0079F8 | 0.104 |
| Tritanopia (no blue cones) | #4B89A7 | 0.178 |
| Achromatopsia (no color) | #7E7E7E | 0.214 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7C66FB
#7C66FB
oklch(61.1% 0.213 284.9)
- #908700
#908700
oklch(61.2% 0.13 104.9)
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 #7C66FB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.020
- Cornflower #6A79F7 ΔE 0.048
- Purpley #8756E4 ΔE 0.049
- Medium Purple #9370DB ΔE 0.068
- Lighter Purple #A55AF4 ΔE 0.070
- Periwinkle #8E82FE ΔE 0.072
- Dark Periwinkle #665FD1 ΔE 0.074
- Light Indigo #6D5ACF ΔE 0.075
Use #7C66FB 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.