#7A66DA
Closest named color: Medium Slate Blue (#7B68EE). oklch(58.7% 0.171 287.9), rgb(122, 102, 218).
Aa
Black text reads best on this color (4.74:1).
About this color
#7A66DA is a medium-dark, vivid purple. In OKLCH its lightness is 59%, its chroma 0.171 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.030 away. Black text reads best on it, at 4.74:1.
| Hue family | Purples |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.171) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 4.74:1 |
| White text | 4.42:1 |
Values
| HEX | #7A66DA |
| RGB | rgb(122, 102, 218) |
| HSL | hsl(250, 61%, 63%) |
| OKLCH | oklch(58.7% 0.171 287.9) |
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 #7A66DA | 4.42:1 | AA large text | Lc -75.9 | Fine for body text |
| Black text on #7A66DA | 4.74:1 | AA | Lc 33.6 | Non-text elements, placeholder text |
| #7A66DA text on white | 4.42:1 | AA large text | Lc 70.5 | Content text, not long reading |
| #7A66DA text on black | 4.74:1 | AA | Lc -31.2 | 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
#E9E8F8
oklch(93.6% 0.021 288.9)
-
Step 200
200
#D7D5F5
oklch(88.5% 0.044 288.3)
-
Step 300
300
#BDB9F0
oklch(80.8% 0.077 287.9)
-
Step 400
400
#9D93E9
oklch(70.6% 0.124 288.1)
-
Step 500
500
#8676E2
oklch(63% 0.158 287.8)
-
Step 600
600 (this color)
#7A66DA
oklch(58.7% 0.171 287.9)
-
Step 700
700
#5F4BB4
oklch(49% 0.16 287.8)
-
Step 800
800
#4E3E91
oklch(42.6% 0.131 288.4)
-
Step 900
900
#403674
oklch(37.7% 0.102 287.9)
-
Step 950
950
#252044
oklch(26.9% 0.065 287.6)
#7A66DA 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) | #2D7ADE | 0.092 |
| Deuteranopia (no green cones) | #2D75D7 | 0.090 |
| Tritanopia (no blue cones) | #5D7F96 | 0.142 |
| Achromatopsia (no color) | #787878 | 0.171 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7A66DA
#7A66DA
oklch(58.7% 0.171 287.9)
- #848100
#848100
oklch(58.7% 0.127 108.1)
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 #7A66DA, closest first.
No curated palette has a color within ΔE 0.04 of #7A66DA.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.030
- Dark Periwinkle #665FD1 ΔE 0.039
- Light Indigo #6D5ACF ΔE 0.039
- Purpley #8756E4 ΔE 0.042
- Slate Blue #6A5ACD ΔE 0.044
- Medium Purple #9370DB ΔE 0.049
- Cornflower #6A79F7 ΔE 0.061
- Iris #6258C4 ΔE 0.061
Use #7A66DA 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.