#7666CA
Closest named color: Dark Periwinkle (#665FD1). oklch(57.3% 0.149 288.1), rgb(118, 102, 202).
Aa
White text reads best on this color (4.64:1).
About this color
#7666CA is a medium-dark, vivid purple. In OKLCH its lightness is 57%, its chroma 0.149 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.034 away. White text reads best on it, at 4.64:1.
| Hue family | Purples |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.149) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.52:1 |
| White text | 4.64:1 |
Values
| HEX | #7666CA |
| RGB | rgb(118, 102, 202) |
| HSL | hsl(250, 49%, 60%) |
| OKLCH | oklch(57.3% 0.149 288.1) |
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 #7666CA | 4.64:1 | AA | Lc -77.5 | Fine for body text |
| Black text on #7666CA | 4.52:1 | AA | Lc 32.0 | Non-text elements, placeholder text |
| #7666CA text on white | 4.64:1 | AA | Lc 72.0 | Content text, not long reading |
| #7666CA text on black | 4.52:1 | AA | Lc -29.6 | 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
#E9E8F7
oklch(93.6% 0.02 289.1)
-
Step 200
200
#D7D6F1
oklch(88.5% 0.037 287.3)
-
Step 300
300
#BEBAEA
oklch(80.8% 0.067 288.6)
-
Step 400
400
#9D96E0
oklch(70.8% 0.107 287.7)
-
Step 500
500
#877AD7
oklch(63.2% 0.137 288.2)
-
Step 600
600 (this color)
#7666CA
oklch(57.3% 0.149 288.1)
-
Step 700
700
#5F50AA
oklch(49.2% 0.139 287.8)
-
Step 800
800
#4D4289
oklch(42.7% 0.114 287.7)
-
Step 900
900
#40386E
oklch(37.7% 0.09 288.1)
-
Step 950
950
#252140
oklch(26.9% 0.057 287.9)
#7666CA 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) | #3D77CE | 0.076 |
| Deuteranopia (no green cones) | #3D72C8 | 0.074 |
| Tritanopia (no blue cones) | #5E7B8E | 0.126 |
| Achromatopsia (no color) | #747474 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7666CA
#7666CA
oklch(57.3% 0.149 288.1)
- #807D00
#807D00
oklch(57.4% 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 #7666CA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.034
- Light Indigo #6D5ACF ΔE 0.035
- Slate Blue #6A5ACD ΔE 0.037
- Deep Lavender #8D5EB7 ΔE 0.048
- Iris #6258C4 ΔE 0.049
- Medium Slate Blue #7B68EE ΔE 0.055
- Medium Purple #9370DB ΔE 0.059
- Purpley #8756E4 ΔE 0.060
Use #7666CA 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.