#6B64D4
Closest named color: Dark Periwinkle (#665FD1). oklch(56.7% 0.167 282.5), rgb(107, 100, 212).
Aa
White text reads best on this color (4.77:1).
About this color
#6B64D4 is a medium-dark, vivid purple. In OKLCH its lightness is 57%, its chroma 0.167 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.015 away. White text reads best on it, at 4.77:1.
| Hue family | Purples |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.167) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.39:1 |
| White text | 4.77:1 |
Values
| HEX | #6B64D4 |
| RGB | rgb(107, 100, 212) |
| HSL | hsl(244, 57%, 61%) |
| OKLCH | oklch(56.7% 0.167 282.5) |
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 #6B64D4 | 4.77:1 | AA | Lc -78.3 | Fine for body text |
| Black text on #6B64D4 | 4.39:1 | AA large text | Lc 31.2 | Non-text elements, placeholder text |
| #6B64D4 text on white | 4.77:1 | AA | Lc 72.9 | Content text, not long reading |
| #6B64D4 text on black | 4.39:1 | AA large text | Lc -28.8 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E7E8F8
oklch(93.5% 0.022 283.1)
-
Step 200
200
#D4D6F5
oklch(88.4% 0.043 282.6)
-
Step 300
300
#B9BBF0
oklch(80.9% 0.075 282.9)
-
Step 400
400
#9696E9
oklch(70.7% 0.12 282.9)
-
Step 500
500
#7D7AE2
oklch(63% 0.153 282.4)
-
Step 600
600 (this color)
#6B64D4
oklch(56.7% 0.167 282.5)
-
Step 700
700
#574FB4
oklch(49% 0.155 282.6)
-
Step 800
800
#474192
oklch(42.6% 0.129 282.8)
-
Step 900
900
#3B3874
oklch(37.6% 0.1 282.7)
-
Step 950
950
#222144
oklch(26.9% 0.064 282.5)
#6B64D4 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) | #2876D8 | 0.076 |
| Deuteranopia (no green cones) | #1F6FD2 | 0.078 |
| Tritanopia (no blue cones) | #447D92 | 0.144 |
| Achromatopsia (no color) | #737373 | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B64D4
#6B64D4
oklch(56.7% 0.167 282.5)
- #847800
#847800
oklch(56.6% 0.119 102.5)
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 #6B64D4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.015
- Light Indigo #6D5ACF ΔE 0.024
- Slate Blue #6A5ACD ΔE 0.025
- Iris #6258C4 ΔE 0.040
- Medium Slate Blue #7B68EE ΔE 0.047
- Royal Blue #4169E1 ΔE 0.055
- Purpley #8756E4 ΔE 0.058
- Warm Blue #4B57DB ΔE 0.059
Use #6B64D4 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.