#766ECB
Closest named color: Dark Periwinkle (#665FD1). oklch(58.8% 0.139 285.2), rgb(118, 110, 203).
Aa
Black text reads best on this color (4.86:1).
About this color
#766ECB is a medium-dark, moderately saturated purple. In OKLCH its lightness is 59%, its chroma 0.139 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.049 away. Black text reads best on it, at 4.86:1.
| Hue family | Purples |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.139) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.86:1 |
| White text | 4.31:1 |
Values
| HEX | #766ECB |
| RGB | rgb(118, 110, 203) |
| HSL | hsl(245, 47%, 61%) |
| OKLCH | oklch(58.8% 0.139 285.2) |
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 #766ECB | 4.31:1 | AA large text | Lc -75.2 | Fine for body text |
| Black text on #766ECB | 4.86:1 | AA | Lc 34.3 | Non-text elements, placeholder text |
| #766ECB text on white | 4.31:1 | AA large text | Lc 69.7 | Content text, not long reading |
| #766ECB text on black | 4.86:1 | AA | Lc -31.9 | 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
#E8E8F6
oklch(93.5% 0.019 286)
-
Step 200
200
#D6D6F0
oklch(88.4% 0.036 285.7)
-
Step 300
300
#BCBCE8
oklch(81% 0.062 284.9)
-
Step 400
400
#9A98DD
oklch(70.8% 0.1 284.9)
-
Step 500
500
#827DD3
oklch(63.1% 0.127 284.8)
-
Step 600
600 (this color)
#766ECB
oklch(58.8% 0.139 285.2)
-
Step 700
700
#5B53A6
oklch(49.2% 0.129 285)
-
Step 800
800
#4A4486
oklch(42.6% 0.107 285.1)
-
Step 900
900
#3E3A6C
oklch(37.8% 0.084 285.3)
-
Step 950
950
#24223F
oklch(27% 0.053 285.4)
#766ECB 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) | #4A7CCE | 0.061 |
| Deuteranopia (no green cones) | #4877C9 | 0.060 |
| Tritanopia (no blue cones) | #5D8193 | 0.118 |
| Achromatopsia (no color) | #7A7A7A | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #766ECB
#766ECB
oklch(58.8% 0.139 285.2)
- #888000
#888000
oklch(58.8% 0.125 105.2)
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 #766ECB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.049
- Medium Purple #9370DB ΔE 0.052
- Light Indigo #6D5ACF ΔE 0.054
- Deep Lilac #966EBD ΔE 0.055
- Slate Blue #6A5ACD ΔE 0.055
- Deep Lavender #8D5EB7 ΔE 0.056
- Medium Slate Blue #7B68EE ΔE 0.057
- Iris #6258C4 ΔE 0.066
Use #766ECB 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.