#6D64C7
Closest named color: Dark Periwinkle (#665FD1). oklch(56% 0.149 284.6), rgb(109, 100, 199).
Aa
White text reads best on this color (4.88:1).
About this color
#6D64C7 is a medium-dark, vivid purple. In OKLCH its lightness is 56%, its chroma 0.149 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.024 away. White text reads best on it, at 4.88:1.
| Hue family | Purples |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.149) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.29:1 |
| White text | 4.88:1 |
Values
| HEX | #6D64C7 |
| RGB | rgb(109, 100, 199) |
| HSL | hsl(245, 47%, 59%) |
| OKLCH | oklch(56% 0.149 284.6) |
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 #6D64C7 | 4.88:1 | AA | Lc -79.1 | Fine for body text |
| Black text on #6D64C7 | 4.29:1 | AA large text | Lc 30.4 | Non-text elements, placeholder text |
| #6D64C7 text on white | 4.88:1 | AA | Lc 73.7 | Content text, not long reading |
| #6D64C7 text on black | 4.29:1 | AA large text | Lc -28.0 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E8E8F7
oklch(93.5% 0.02 286)
-
Step 200
200
#D6D6F1
oklch(88.4% 0.037 285.6)
-
Step 300
300
#BBBBEB
oklch(80.8% 0.067 284.8)
-
Step 400
400
#9997E1
oklch(70.7% 0.107 284.5)
-
Step 500
500
#817CD8
oklch(63.1% 0.136 284.3)
-
Step 600
600 (this color)
#6D64C7
oklch(56% 0.149 284.6)
-
Step 700
700
#5A51AB
oklch(49% 0.139 284.6)
-
Step 800
800
#4A438A
oklch(42.7% 0.114 285)
-
Step 900
900
#3D396F
oklch(37.7% 0.09 284.6)
-
Step 950
950
#242241
oklch(27.1% 0.057 284.9)
#6D64C7 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) | #3974CB | 0.068 |
| Deuteranopia (no green cones) | #356EC5 | 0.068 |
| Tritanopia (no blue cones) | #50798C | 0.127 |
| Achromatopsia (no color) | #717171 | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6D64C7
#6D64C7
oklch(56% 0.149 284.6)
- #807700
#807700
oklch(56% 0.118 104.3)
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 #6D64C7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.024
- Slate Blue #6A5ACD ΔE 0.028
- Light Indigo #6D5ACF ΔE 0.028
- Iris #6258C4 ΔE 0.036
- Deep Lavender #8D5EB7 ΔE 0.057
- Medium Slate Blue #7B68EE ΔE 0.063
- Royal Blue #4169E1 ΔE 0.066
- Purpley #8756E4 ΔE 0.068
Use #6D64C7 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.