#766ACD
Closest named color: Dark Periwinkle (#665FD1). oklch(58.2% 0.148 286.4), rgb(118, 106, 205).
Aa
Black text reads best on this color (4.71:1).
About this color
#766ACD is a medium-dark, vivid purple. In OKLCH its lightness is 58%, its chroma 0.148 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.040 away. Black text reads best on it, at 4.71:1.
| Hue family | Purples |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.148) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.71:1 |
| White text | 4.45:1 |
Values
| HEX | #766ACD |
| RGB | rgb(118, 106, 205) |
| HSL | hsl(247, 50%, 61%) |
| OKLCH | oklch(58.2% 0.148 286.4) |
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 #766ACD | 4.45:1 | AA large text | Lc -76.2 | Fine for body text |
| Black text on #766ACD | 4.71:1 | AA | Lc 33.3 | Non-text elements, placeholder text |
| #766ACD text on white | 4.45:1 | AA large text | Lc 70.7 | Content text, not long reading |
| #766ACD text on black | 4.71:1 | AA | Lc -30.9 | 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
#E8E8F7
oklch(93.5% 0.02 286)
-
Step 200
200
#D7D6F1
oklch(88.5% 0.037 287.3)
-
Step 300
300
#BDBBEA
oklch(81% 0.066 286.8)
-
Step 400
400
#9B96E0
oklch(70.6% 0.107 286.4)
-
Step 500
500
#847BD7
oklch(63.1% 0.136 286.3)
-
Step 600
600 (this color)
#766ACD
oklch(58.2% 0.148 286.4)
-
Step 700
700
#5D51AA
oklch(49.2% 0.137 286.4)
-
Step 800
800
#4C4389
oklch(42.8% 0.112 286.5)
-
Step 900
900
#3F396E
oklch(37.8% 0.088 286.5)
-
Step 950
950
#252240
oklch(27.1% 0.055 286.7)
#766ACD 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) | #427AD1 | 0.070 |
| Deuteranopia (no green cones) | #4075CB | 0.069 |
| Tritanopia (no blue cones) | #5C7E92 | 0.124 |
| Achromatopsia (no color) | #777777 | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #766ACD
#766ACD
oklch(58.2% 0.148 286.4)
- #857F00
#857F00
oklch(58.3% 0.125 106.4)
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 #766ACD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.040
- Light Indigo #6D5ACF ΔE 0.043
- Slate Blue #6A5ACD ΔE 0.045
- Medium Slate Blue #7B68EE ΔE 0.051
- Deep Lavender #8D5EB7 ΔE 0.053
- Medium Purple #9370DB ΔE 0.053
- Iris #6258C4 ΔE 0.058
- Deep Lilac #966EBD ΔE 0.060
Use #766ACD 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.