#7A66CB
Closest named color: Light Indigo (#6D5ACF). oklch(57.7% 0.151 290), rgb(122, 102, 203).
Aa
Black text reads best on this color (4.59:1).
About this color
#7A66CB is a medium-dark, vivid purple. In OKLCH its lightness is 58%, its chroma 0.151 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Light Indigo (#6D5ACF), ΔE 0.039 away. Black text reads best on it, at 4.59:1.
| Hue family | Purples |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Light Indigo (#6D5ACF) |
| Black text | 4.59:1 |
| White text | 4.57:1 |
Values
| HEX | #7A66CB |
| RGB | rgb(122, 102, 203) |
| HSL | hsl(252, 49%, 60%) |
| OKLCH | oklch(57.7% 0.151 290) |
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 #7A66CB | 4.57:1 | AA | Lc -77.0 | Fine for body text |
| Black text on #7A66CB | 4.59:1 | AA | Lc 32.5 | Non-text elements, placeholder text |
| #7A66CB text on white | 4.57:1 | AA | Lc 71.6 | Content text, not long reading |
| #7A66CB text on black | 4.59:1 | AA | Lc -30.1 | 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
#E9E8F6
oklch(93.6% 0.019 289.3)
-
Step 200
200
#D8D5F1
oklch(88.4% 0.038 290.5)
-
Step 300
300
#BFBAEA
oklch(80.9% 0.067 289.6)
-
Step 400
400
#A095E0
oklch(70.8% 0.108 290.1)
-
Step 500
500
#8979D7
oklch(63.2% 0.138 289.7)
-
Step 600
600 (this color)
#7A66CB
oklch(57.7% 0.151 290)
-
Step 700
700
#624EA9
oklch(49% 0.14 290.4)
-
Step 800
800
#4F4189
oklch(42.7% 0.115 289.5)
-
Step 900
900
#42376E
oklch(37.7% 0.092 290.5)
-
Step 950
950
#262140
oklch(27% 0.057 289.5)
#7A66CB 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) | #3D77CF | 0.081 |
| Deuteranopia (no green cones) | #3F73C9 | 0.078 |
| Tritanopia (no blue cones) | #647B8F | 0.125 |
| Achromatopsia (no color) | #757575 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7A66CB
#7A66CB
oklch(57.7% 0.151 290)
- #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 #7A66CB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Indigo #6D5ACF ΔE 0.039
- Dark Periwinkle #665FD1 ΔE 0.039
- Slate Blue #6A5ACD ΔE 0.041
- Deep Lavender #8D5EB7 ΔE 0.045
- Medium Slate Blue #7B68EE ΔE 0.053
- Medium Purple #9370DB ΔE 0.054
- Iris #6258C4 ΔE 0.054
- Purpley #8756E4 ΔE 0.057
Use #7A66CB 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.