#6A64D9
Closest named color: Dark Periwinkle (#665FD1). oklch(57% 0.174 281.7), rgb(106, 100, 217).
Aa
White text reads best on this color (4.73:1).
About this color
#6A64D9 is a medium-dark, vivid purple. In OKLCH its lightness is 57%, its chroma 0.174 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.018 away. White text reads best on it, at 4.73:1.
| Hue family | Purples |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.174) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.43:1 |
| White text | 4.73:1 |
Values
| HEX | #6A64D9 |
| RGB | rgb(106, 100, 217) |
| HSL | hsl(243, 61%, 62%) |
| OKLCH | oklch(57% 0.174 281.7) |
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 #6A64D9 | 4.73:1 | AA | Lc -78.0 | Fine for body text |
| Black text on #6A64D9 | 4.43:1 | AA large text | Lc 31.5 | Non-text elements, placeholder text |
| #6A64D9 text on white | 4.73:1 | AA | Lc 72.6 | Content text, not long reading |
| #6A64D9 text on black | 4.43:1 | AA large text | Lc -29.1 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E7E8F9
oklch(93.5% 0.023 283.3)
-
Step 200
200
#D4D6F6
oklch(88.5% 0.044 282.6)
-
Step 300
300
#B8BBF3
oklch(80.9% 0.079 282.1)
-
Step 400
400
#9496EC
oklch(70.7% 0.125 281.7)
-
Step 500
500
#7C7AE6
oklch(63.2% 0.159 281.7)
-
Step 600
600 (this color)
#6A64D9
oklch(57% 0.174 281.7)
-
Step 700
700
#554EB8
oklch(49% 0.162 281.6)
-
Step 800
800
#464195
oklch(42.8% 0.134 281.8)
-
Step 900
900
#3A3877
oklch(37.8% 0.105 281.6)
-
Step 950
950
#222145
oklch(26.9% 0.066 282.3)
#6A64D9 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) | #1F77DD | 0.079 |
| Deuteranopia (no green cones) | #0E6FD7 | 0.082 |
| Tritanopia (no blue cones) | #3D7E95 | 0.148 |
| Achromatopsia (no color) | #737373 | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6A64D9
#6A64D9
oklch(57% 0.174 281.7)
- #867900
#867900
oklch(57% 0.119 101.9)
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 #6A64D9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.018
- Light Indigo #6D5ACF ΔE 0.027
- Slate Blue #6A5ACD ΔE 0.029
- Medium Slate Blue #7B68EE ΔE 0.042
- Iris #6258C4 ΔE 0.044
- Royal Blue #4169E1 ΔE 0.051
- Purpley #8756E4 ΔE 0.055
- Warm Blue #4B57DB ΔE 0.057
Use #6A64D9 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.