#6D6CDB
Closest named color: Dark Periwinkle (#665FD1). oklch(58.8% 0.165 280.4), rgb(109, 108, 219).
Aa
Black text reads best on this color (4.81:1).
About this color
#6D6CDB is a medium-dark, vivid purple. In OKLCH its lightness is 59%, its chroma 0.165 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.036 away. Black text reads best on it, at 4.81:1.
| Hue family | Purples |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.165) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.81:1 |
| White text | 4.35:1 |
Values
| HEX | #6D6CDB |
| RGB | rgb(109, 108, 219) |
| HSL | hsl(241, 61%, 64%) |
| OKLCH | oklch(58.8% 0.165 280.4) |
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 #6D6CDB | 4.35:1 | AA large text | Lc -75.4 | Fine for body text |
| Black text on #6D6CDB | 4.81:1 | AA | Lc 34.1 | Non-text elements, placeholder text |
| #6D6CDB text on white | 4.35:1 | AA large text | Lc 70.0 | Content text, not long reading |
| #6D6CDB text on black | 4.81:1 | AA | Lc -31.7 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E7E9F8
oklch(93.7% 0.02 279.9)
-
Step 200
200
#D3D7F5
oklch(88.5% 0.041 279.5)
-
Step 300
300
#B7BCF0
oklch(80.9% 0.073 280.3)
-
Step 400
400
#9397E9
oklch(70.6% 0.119 280.7)
-
Step 500
500
#7A7CE2
oklch(63.2% 0.151 280.3)
-
Step 600
600 (this color)
#6D6CDB
oklch(58.8% 0.165 280.4)
-
Step 700
700
#5451B4
oklch(49.2% 0.153 280.6)
-
Step 800
800
#444392
oklch(42.8% 0.127 280.2)
-
Step 900
900
#393974
oklch(37.7% 0.099 280.6)
-
Step 950
950
#212244
oklch(27% 0.062 280.1)
#6D6CDB 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) | #357DDF | 0.067 |
| Deuteranopia (no green cones) | #2B75D9 | 0.069 |
| Tritanopia (no blue cones) | #428499 | 0.143 |
| Achromatopsia (no color) | #797979 | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6D6CDB
#6D6CDB
oklch(58.8% 0.165 280.4)
- #8D7D00
#8D7D00
oklch(58.6% 0.122 100.3)
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 #6D6CDB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.036
- Medium Slate Blue #7B68EE ΔE 0.037
- Light Indigo #6D5ACF ΔE 0.045
- Slate Blue #6A5ACD ΔE 0.047
- Cornflower #6A79F7 ΔE 0.049
- Royal Blue #4169E1 ΔE 0.056
- Medium Purple #9370DB ΔE 0.061
- Iris #6258C4 ΔE 0.061
Use #6D6CDB 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.