#7B66F3
Closest named color: Medium Slate Blue (#7B68EE). oklch(60.5% 0.203 285.4), rgb(123, 102, 243).
Aa
Black text reads best on this color (5.03:1).
About this color
#7B66F3 is a medium-dark, vivid purple. In OKLCH its lightness is 60%, its chroma 0.203 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.009 away. Black text reads best on it, at 5.03:1.
| Hue family | Purples |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.203) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 5.03:1 |
| White text | 4.16:1 |
Values
| HEX | #7B66F3 |
| RGB | rgb(123, 102, 243) |
| HSL | hsl(249, 85%, 68%) |
| OKLCH | oklch(60.5% 0.203 285.4) |
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 #7B66F3 | 4.16:1 | AA large text | Lc -73.8 | Content text, not long reading |
| Black text on #7B66F3 | 5.03:1 | AA | Lc 35.8 | Non-text elements, placeholder text |
| #7B66F3 text on white | 4.16:1 | AA large text | Lc 68.3 | Content text, not long reading |
| #7B66F3 text on black | 5.03:1 | AA | Lc -33.3 | 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 500.
-
Step 50
50
#F4F4FE
oklch(97% 0.013 286.1)
-
Step 100
100
#E7E8FD
oklch(93.7% 0.028 283.7)
-
Step 200
200
#D5D5FD
oklch(88.6% 0.055 285.2)
-
Step 300
300
#BAB8FE
oklch(80.9% 0.098 285.3)
-
Step 400
400
#998FFE
oklch(70.7% 0.159 285.7)
-
Step 500
500 (this color)
#7B66F3
oklch(60.5% 0.203 285.4)
-
Step 600
600
#6E51EB
oklch(55.5% 0.22 285.3)
-
Step 700
700
#5D40CD
oklch(49.1% 0.205 285.5)
-
Step 800
800
#4B36A5
oklch(42.6% 0.169 285.3)
-
Step 900
900
#3E3183
oklch(37.7% 0.132 285.4)
-
Step 950
950
#241E4D
oklch(27.1% 0.084 285.2)
#7B66F3 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) | #0080F8 | 0.106 |
| Deuteranopia (no green cones) | #0078F0 | 0.104 |
| Tritanopia (no blue cones) | #4F87A3 | 0.171 |
| Achromatopsia (no color) | #7C7C7C | 0.204 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7B66F3
#7B66F3
oklch(60.5% 0.203 285.4)
- #8D8500
#8D8500
oklch(60.4% 0.128 105.4)
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 #7B66F3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.009
- Purpley #8756E4 ΔE 0.042
- Cornflower #6A79F7 ΔE 0.047
- Medium Purple #9370DB ΔE 0.061
- Dark Periwinkle #665FD1 ΔE 0.063
- Light Indigo #6D5ACF ΔE 0.064
- Slate Blue #6A5ACD ΔE 0.069
- Lighter Purple #A55AF4 ΔE 0.071
Use #7B66F3 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.