#7D66DD
Closest named color: Medium Slate Blue (#7B68EE). oklch(59.1% 0.174 288.8), rgb(125, 102, 221).
Aa
Black text reads best on this color (4.81:1).
About this color
#7D66DD is a medium-dark, vivid purple. In OKLCH its lightness is 59%, its chroma 0.174 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.026 away. Black text reads best on it, at 4.81:1.
| Hue family | Purples |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.174) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 4.81:1 |
| White text | 4.35:1 |
Values
| HEX | #7D66DD |
| RGB | rgb(125, 102, 221) |
| HSL | hsl(252, 64%, 63%) |
| OKLCH | oklch(59.1% 0.174 288.8) |
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 #7D66DD | 4.35:1 | AA large text | Lc -75.4 | Fine for body text |
| Black text on #7D66DD | 4.81:1 | AA | Lc 34.2 | Non-text elements, placeholder text |
| #7D66DD text on white | 4.35:1 | AA large text | Lc 69.9 | Content text, not long reading |
| #7D66DD text on black | 4.81:1 | AA | Lc -31.7 | 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
#E9E8F9
oklch(93.7% 0.023 288.7)
-
Step 200
200
#D7D5F5
oklch(88.5% 0.044 288.3)
-
Step 300
300
#BEB9F1
oklch(80.9% 0.079 288.6)
-
Step 400
400
#9E93EA
oklch(70.8% 0.125 288.6)
-
Step 500
500
#8875E3
oklch(63.1% 0.161 288.9)
-
Step 600
600 (this color)
#7D66DD
oklch(59.1% 0.174 288.8)
-
Step 700
700
#614AB5
oklch(49.1% 0.162 288.9)
-
Step 800
800
#4F3D92
oklch(42.6% 0.134 289.2)
-
Step 900
900
#413575
oklch(37.6% 0.106 288.9)
-
Step 950
950
#262044
oklch(27% 0.065 288.9)
#7D66DD 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) | #2A7BE1 | 0.097 |
| Deuteranopia (no green cones) | #2C76DA | 0.095 |
| Tritanopia (no blue cones) | #608098 | 0.145 |
| Achromatopsia (no color) | #797979 | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7D66DD
#7D66DD
oklch(59.1% 0.174 288.8)
- #858300
#858300
oklch(59.2% 0.128 108.7)
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 #7D66DD, closest first.
No curated palette has a color within ΔE 0.04 of #7D66DD.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.026
- Purpley #8756E4 ΔE 0.039
- Light Indigo #6D5ACF ΔE 0.044
- Dark Periwinkle #665FD1 ΔE 0.044
- Medium Purple #9370DB ΔE 0.045
- Slate Blue #6A5ACD ΔE 0.049
- Cornflower #6A79F7 ΔE 0.059
- Deep Lavender #8D5EB7 ΔE 0.064
Use #7D66DD 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.