#7A66DF
Closest named color: Medium Slate Blue (#7B68EE). oklch(59% 0.177 287.3), rgb(122, 102, 223).
Aa
Black text reads best on this color (4.79:1).
About this color
#7A66DF is a medium-dark, vivid purple. In OKLCH its lightness is 59%, its chroma 0.177 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.023 away. Black text reads best on it, at 4.79:1.
| Hue family | Purples |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.177) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 4.79:1 |
| White text | 4.38:1 |
Values
| HEX | #7A66DF |
| RGB | rgb(122, 102, 223) |
| HSL | hsl(250, 65%, 64%) |
| OKLCH | oklch(59% 0.177 287.3) |
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 #7A66DF | 4.38:1 | AA large text | Lc -75.6 | Fine for body text |
| Black text on #7A66DF | 4.79:1 | AA | Lc 34.0 | Non-text elements, placeholder text |
| #7A66DF text on white | 4.38:1 | AA large text | Lc 70.1 | Content text, not long reading |
| #7A66DF text on black | 4.79:1 | AA | Lc -31.6 | 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
#E8E8F9
oklch(93.6% 0.023 286)
-
Step 200
200
#D7D5F6
oklch(88.5% 0.045 288.2)
-
Step 300
300
#BDB9F2
oklch(80.9% 0.08 287.7)
-
Step 400
400
#9C93EC
oklch(70.7% 0.128 287.3)
-
Step 500
500
#8576E5
oklch(63.1% 0.162 287)
-
Step 600
600 (this color)
#7A66DF
oklch(59% 0.177 287.3)
-
Step 700
700
#5F4AB7
oklch(49.1% 0.165 287.6)
-
Step 800
800
#4D3E94
oklch(42.7% 0.136 287.2)
-
Step 900
900
#403676
oklch(37.8% 0.105 287.4)
-
Step 950
950
#252045
oklch(27% 0.067 287.2)
#7A66DF 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) | #257CE3 | 0.096 |
| Deuteranopia (no green cones) | #2475DC | 0.095 |
| Tritanopia (no blue cones) | #5A8099 | 0.147 |
| Achromatopsia (no color) | #797979 | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7A66DF
#7A66DF
oklch(59% 0.177 287.3)
- #868200
#868200
oklch(59.1% 0.127 107.6)
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 #7A66DF, closest first.
No curated palette has a color within ΔE 0.04 of #7A66DF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.023
- Purpley #8756E4 ΔE 0.040
- Dark Periwinkle #665FD1 ΔE 0.042
- Light Indigo #6D5ACF ΔE 0.043
- Slate Blue #6A5ACD ΔE 0.047
- Medium Purple #9370DB ΔE 0.050
- Cornflower #6A79F7 ΔE 0.056
- Iris #6258C4 ΔE 0.066
Use #7A66DF 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.