#766AC3
Closest named color: Dark Periwinkle (#665FD1). oklch(57.6% 0.134 287.6), rgb(118, 106, 195).
Aa
Black text reads best on this color (4.61:1).
About this color
#766AC3 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 58%, its chroma 0.134 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.046 away. Black text reads best on it, at 4.61:1.
| Hue family | Purples |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.134) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.61:1 |
| White text | 4.54:1 |
Values
| HEX | #766AC3 |
| RGB | rgb(118, 106, 195) |
| HSL | hsl(248, 43%, 59%) |
| OKLCH | oklch(57.6% 0.134 287.6) |
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 #766AC3 | 4.54:1 | AA | Lc -76.9 | Fine for body text |
| Black text on #766AC3 | 4.61:1 | AA | Lc 32.7 | Non-text elements, placeholder text |
| #766AC3 text on white | 4.54:1 | AA | Lc 71.4 | Content text, not long reading |
| #766AC3 text on black | 4.61:1 | 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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E9E8F5
oklch(93.6% 0.017 289.6)
-
Step 200
200
#D7D6EF
oklch(88.5% 0.034 287.5)
-
Step 300
300
#BEBBE6
oklch(80.9% 0.06 288.2)
-
Step 400
400
#9D97DA
oklch(70.7% 0.097 287.7)
-
Step 500
500
#867CCF
oklch(63% 0.123 287.9)
-
Step 600
600 (this color)
#766AC3
oklch(57.6% 0.134 287.6)
-
Step 700
700
#5E52A2
oklch(49% 0.124 287.8)
-
Step 800
800
#4D4484
oklch(42.8% 0.103 287.7)
-
Step 900
900
#403A6A
oklch(37.8% 0.08 287.6)
-
Step 950
950
#25223E
oklch(27% 0.051 287.4)
#766AC3 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) | #4978C6 | 0.063 |
| Deuteranopia (no green cones) | #4974C1 | 0.061 |
| Tritanopia (no blue cones) | #617C8D | 0.113 |
| Achromatopsia (no color) | #767676 | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #766AC3
#766AC3
oklch(57.6% 0.134 287.6)
- #817E00
#817E00
oklch(57.7% 0.124 108.1)
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 #766AC3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.046
- Deep Lavender #8D5EB7 ΔE 0.047
- Light Indigo #6D5ACF ΔE 0.049
- Slate Blue #6A5ACD ΔE 0.050
- Deep Lilac #966EBD ΔE 0.055
- Iris #6258C4 ΔE 0.058
- Medium Purple #9370DB ΔE 0.061
- Amethyst #9B5FC0 ΔE 0.064
Use #766AC3 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.