#7A66D7
Closest named color: Medium Slate Blue (#7B68EE). oklch(58.5% 0.167 288.3), rgb(122, 102, 215).
Aa
Black text reads best on this color (4.70:1).
About this color
#7A66D7 is a medium-dark, vivid purple. In OKLCH its lightness is 58%, its chroma 0.167 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.035 away. Black text reads best on it, at 4.70:1.
| Hue family | Purples |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.167) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 4.70:1 |
| White text | 4.45:1 |
Values
| HEX | #7A66D7 |
| RGB | rgb(122, 102, 215) |
| HSL | hsl(251, 59%, 62%) |
| OKLCH | oklch(58.5% 0.167 288.3) |
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 #7A66D7 | 4.45:1 | AA large text | Lc -76.2 | Fine for body text |
| Black text on #7A66D7 | 4.70:1 | AA | Lc 33.4 | Non-text elements, placeholder text |
| #7A66D7 text on white | 4.45:1 | AA large text | Lc 70.7 | Content text, not long reading |
| #7A66D7 text on black | 4.70:1 | AA | Lc -31.0 | 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
#D7D5F4
oklch(88.4% 0.042 288.5)
-
Step 300
300
#BEB9EF
oklch(80.8% 0.076 288.8)
-
Step 400
400
#9D94E7
oklch(70.7% 0.12 287.9)
-
Step 500
500
#8777E0
oklch(63.1% 0.154 288.2)
-
Step 600
600 (this color)
#7A66D7
oklch(58.5% 0.167 288.3)
-
Step 700
700
#604CB2
oklch(49.1% 0.155 288.3)
-
Step 800
800
#4E3F90
oklch(42.7% 0.129 288.2)
-
Step 900
900
#403673
oklch(37.6% 0.101 288.1)
-
Step 950
950
#262043
oklch(27% 0.064 289.3)
#7A66D7 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) | #317ADB | 0.090 |
| Deuteranopia (no green cones) | #3174D4 | 0.088 |
| Tritanopia (no blue cones) | #5E7E95 | 0.138 |
| Achromatopsia (no color) | #777777 | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7A66D7
#7A66D7
oklch(58.5% 0.167 288.3)
- #838000
#838000
oklch(58.3% 0.126 108.1)
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 #7A66D7, closest first.
No curated palette has a color within ΔE 0.04 of #7A66D7.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.035
- Dark Periwinkle #665FD1 ΔE 0.038
- Light Indigo #6D5ACF ΔE 0.038
- Slate Blue #6A5ACD ΔE 0.042
- Purpley #8756E4 ΔE 0.045
- Medium Purple #9370DB ΔE 0.049
- Deep Lavender #8D5EB7 ΔE 0.058
- Iris #6258C4 ΔE 0.059
Use #7A66D7 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.