#7566C4
Closest named color: Dark Periwinkle (#665FD1). oklch(56.8% 0.141 288.4), rgb(117, 102, 196).
Aa
White text reads best on this color (4.71:1).
About this color
#7566C4 is a medium-dark, vivid purple. In OKLCH its lightness is 57%, its chroma 0.141 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.038 away. White text reads best on it, at 4.71:1.
| Hue family | Purples |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.141) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.45:1 |
| White text | 4.71:1 |
Values
| HEX | #7566C4 |
| RGB | rgb(117, 102, 196) |
| HSL | hsl(250, 44%, 58%) |
| OKLCH | oklch(56.8% 0.141 288.4) |
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 #7566C4 | 4.71:1 | AA | Lc -78.0 | Fine for body text |
| Black text on #7566C4 | 4.45:1 | AA large text | Lc 31.5 | Non-text elements, placeholder text |
| #7566C4 text on white | 4.71:1 | AA | Lc 72.6 | Content text, not long reading |
| #7566C4 text on black | 4.45:1 | AA large text | Lc -29.1 | 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
#D7D6F0
oklch(88.5% 0.036 287.4)
-
Step 300
300
#BEBBE8
oklch(81% 0.063 288)
-
Step 400
400
#9E96DC
oklch(70.7% 0.101 288.8)
-
Step 500
500
#877BD3
oklch(63.2% 0.13 288.4)
-
Step 600
600 (this color)
#7566C4
oklch(56.8% 0.141 288.4)
-
Step 700
700
#5F51A6
oklch(49.1% 0.132 288.1)
-
Step 800
800
#4E4386
oklch(42.8% 0.108 288.5)
-
Step 900
900
#40396B
oklch(37.7% 0.084 288.1)
-
Step 950
950
#26223F
oklch(27.2% 0.053 288.7)
#7566C4 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) | #4276C7 | 0.071 |
| Deuteranopia (no green cones) | #4271C2 | 0.068 |
| Tritanopia (no blue cones) | #5F798C | 0.117 |
| Achromatopsia (no color) | #737373 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7566C4
#7566C4
oklch(56.8% 0.141 288.4)
- #7E7C00
#7E7C00
oklch(56.9% 0.123 108.6)
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 #7566C4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.038
- Light Indigo #6D5ACF ΔE 0.039
- Slate Blue #6A5ACD ΔE 0.040
- Deep Lavender #8D5EB7 ΔE 0.045
- Iris #6258C4 ΔE 0.048
- Deep Lilac #966EBD ΔE 0.061
- Amethyst #9B5FC0 ΔE 0.064
- Medium Slate Blue #7B68EE ΔE 0.064
Use #7566C4 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.