#7666DB
Closest named color: Medium Slate Blue (#7B68EE). oklch(58.4% 0.172 286), rgb(118, 102, 219).
Aa
Black text reads best on this color (4.69:1).
About this color
#7666DB is a medium-dark, vivid purple. In OKLCH its lightness is 58%, its chroma 0.172 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.030 away. Black text reads best on it, at 4.69:1.
| Hue family | Purples |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.172) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 4.69:1 |
| White text | 4.47:1 |
Values
| HEX | #7666DB |
| RGB | rgb(118, 102, 219) |
| HSL | hsl(248, 62%, 63%) |
| OKLCH | oklch(58.4% 0.172 286) |
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 #7666DB | 4.47:1 | AA large text | Lc -76.3 | Fine for body text |
| Black text on #7666DB | 4.69:1 | AA | Lc 33.3 | Non-text elements, placeholder text |
| #7666DB text on white | 4.47:1 | AA large text | Lc 70.8 | Content text, not long reading |
| #7666DB text on black | 4.69:1 | 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
#F5F5FC
oklch(97.2% 0.009 286.2)
-
Step 100
100
#E8E8F9
oklch(93.6% 0.023 286)
-
Step 200
200
#D6D6F5
oklch(88.6% 0.042 285.5)
-
Step 300
300
#BCBAF1
oklch(80.9% 0.077 286.2)
-
Step 400
400
#9A94EA
oklch(70.6% 0.124 285.9)
-
Step 500
500
#8377E4
oklch(63.1% 0.159 285.9)
-
Step 600
600 (this color)
#7666DB
oklch(58.4% 0.172 286)
-
Step 700
700
#5C4CB5
oklch(49% 0.16 285.9)
-
Step 800
800
#4B3F93
oklch(42.7% 0.133 285.8)
-
Step 900
900
#3E3775
oklch(37.8% 0.103 285.5)
-
Step 950
950
#242045
oklch(26.9% 0.067 285.9)
#7666DB 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) | #297ADF | 0.089 |
| Deuteranopia (no green cones) | #2674D8 | 0.088 |
| Tritanopia (no blue cones) | #557F97 | 0.144 |
| Achromatopsia (no color) | #777777 | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7666DB
#7666DB
oklch(58.4% 0.172 286)
- #867F00
#867F00
oklch(58.4% 0.124 105.8)
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 #7666DB, closest first.
No curated palette has a color within ΔE 0.04 of #7666DB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.030
- Dark Periwinkle #665FD1 ΔE 0.034
- Light Indigo #6D5ACF ΔE 0.037
- Slate Blue #6A5ACD ΔE 0.040
- Purpley #8756E4 ΔE 0.045
- Medium Purple #9370DB ΔE 0.055
- Iris #6258C4 ΔE 0.058
- Cornflower #6A79F7 ΔE 0.059
Use #7666DB 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.