#7A66CC
Closest named color: Light Indigo (#6D5ACF). oklch(57.8% 0.152 289.8), rgb(122, 102, 204).
Aa
Black text reads best on this color (4.59:1).
About this color
#7A66CC is a medium-dark, vivid purple. In OKLCH its lightness is 58%, its chroma 0.152 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Light Indigo (#6D5ACF), ΔE 0.038 away. Black text reads best on it, at 4.59:1.
| Hue family | Purples |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.152) |
| Temperature | cool |
| Nearest name | Light Indigo (#6D5ACF) |
| Black text | 4.59:1 |
| White text | 4.56:1 |
Values
| HEX | #7A66CC |
| RGB | rgb(122, 102, 204) |
| HSL | hsl(252, 50%, 60%) |
| OKLCH | oklch(57.8% 0.152 289.8) |
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 #7A66CC | 4.56:1 | AA | Lc -77.0 | Fine for body text |
| Black text on #7A66CC | 4.59:1 | AA | Lc 32.6 | Non-text elements, placeholder text |
| #7A66CC text on white | 4.56:1 | AA | Lc 71.5 | Content text, not long reading |
| #7A66CC text on black | 4.59:1 | AA | Lc -30.2 | 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
#F5F4FB
oklch(97% 0.009 292.8)
-
Step 100
100
#E9E8F7
oklch(93.6% 0.02 289.1)
-
Step 200
200
#D8D5F1
oklch(88.4% 0.038 290.5)
-
Step 300
300
#BFBAEB
oklch(81% 0.069 289.4)
-
Step 400
400
#9F95E0
oklch(70.7% 0.108 289.4)
-
Step 500
500
#8978D7
oklch(63% 0.14 290)
-
Step 600
600 (this color)
#7A66CC
oklch(57.8% 0.152 289.8)
-
Step 700
700
#614EAA
oklch(49% 0.142 289.6)
-
Step 800
800
#4F418A
oklch(42.8% 0.117 289.3)
-
Step 900
900
#42376E
oklch(37.7% 0.092 290.5)
-
Step 950
950
#262140
oklch(27% 0.057 289.5)
#7A66CC 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) | #3C78D0 | 0.082 |
| Deuteranopia (no green cones) | #3E73CA | 0.079 |
| Tritanopia (no blue cones) | #647B8F | 0.126 |
| Achromatopsia (no color) | #767676 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7A66CC
#7A66CC
oklch(57.8% 0.152 289.8)
- #7F7F00
#7F7F00
oklch(57.7% 0.126 109.8)
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 #7A66CC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Indigo #6D5ACF ΔE 0.038
- Dark Periwinkle #665FD1 ΔE 0.038
- Slate Blue #6A5ACD ΔE 0.041
- Deep Lavender #8D5EB7 ΔE 0.046
- Medium Slate Blue #7B68EE ΔE 0.051
- Medium Purple #9370DB ΔE 0.053
- Iris #6258C4 ΔE 0.055
- Purpley #8756E4 ΔE 0.056
Use #7A66CC 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.