#7A66C8
Closest named color: Light Indigo (#6D5ACF). oklch(57.5% 0.147 290.4), rgb(122, 102, 200).
Aa
White text reads best on this color (4.60:1).
About this color
#7A66C8 is a medium-dark, vivid purple. In OKLCH its lightness is 58%, its chroma 0.147 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Indigo (#6D5ACF), ΔE 0.040 away. White text reads best on it, at 4.60:1.
| Hue family | Purples |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.147) |
| Temperature | in between |
| Nearest name | Light Indigo (#6D5ACF) |
| Black text | 4.56:1 |
| White text | 4.60:1 |
Values
| HEX | #7A66C8 |
| RGB | rgb(122, 102, 200) |
| HSL | hsl(252, 47%, 59%) |
| OKLCH | oklch(57.5% 0.147 290.4) |
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 #7A66C8 | 4.60:1 | AA | Lc -77.2 | Fine for body text |
| Black text on #7A66C8 | 4.56:1 | AA | Lc 32.3 | Non-text elements, placeholder text |
| #7A66C8 text on white | 4.60:1 | AA | Lc 71.8 | Content text, not long reading |
| #7A66C8 text on black | 4.56:1 | AA | Lc -29.9 | Dividers and decoration only |
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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E9E8F6
oklch(93.6% 0.019 289.3)
-
Step 200
200
#D8D6F0
oklch(88.6% 0.036 289.2)
-
Step 300
300
#C0BAE9
oklch(81% 0.066 290.7)
-
Step 400
400
#A095DE
oklch(70.7% 0.106 290.3)
-
Step 500
500
#8A79D4
oklch(63.1% 0.134 290.6)
-
Step 600
600 (this color)
#7A66C8
oklch(57.5% 0.147 290.4)
-
Step 700
700
#624FA7
oklch(49.1% 0.136 290.4)
-
Step 800
800
#504187
oklch(42.7% 0.113 290.7)
-
Step 900
900
#42386C
oklch(37.7% 0.087 290.5)
-
Step 950
950
#26213F
oklch(26.9% 0.055 289.9)
#7A66C8 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) | #4077CB | 0.079 |
| Deuteranopia (no green cones) | #4273C6 | 0.076 |
| Tritanopia (no blue cones) | #657A8D | 0.122 |
| Achromatopsia (no color) | #757575 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7A66C8
#7A66C8
oklch(57.5% 0.147 290.4)
- #7D7F00
#7D7F00
oklch(57.6% 0.126 110.9)
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 #7A66C8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Indigo #6D5ACF ΔE 0.040
- Dark Periwinkle #665FD1 ΔE 0.041
- Deep Lavender #8D5EB7 ΔE 0.042
- Slate Blue #6A5ACD ΔE 0.042
- Iris #6258C4 ΔE 0.054
- Medium Purple #9370DB ΔE 0.055
- Deep Lilac #966EBD ΔE 0.056
- Amethyst #9B5FC0 ΔE 0.057
Use #7A66C8 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.