#6644C9
Closest named color: Bluey Purple (#6241C7). oklch(50.2% 0.195 289.2), rgb(102, 68, 201).
Aa
White text reads best on this color (6.49:1).
About this color
#6644C9 is a medium-dark, vivid purple. In OKLCH its lightness is 50%, its chroma 0.195 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Bluey Purple (#6241C7), ΔE 0.010 away. White text reads best on it, at 6.49:1.
| Hue family | Purples |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.195) |
| Temperature | cool |
| Nearest name | Bluey Purple (#6241C7) |
| Black text | 3.23:1 |
| White text | 6.49:1 |
Values
| HEX | #6644C9 |
| RGB | rgb(102, 68, 201) |
| HSL | hsl(255, 55%, 53%) |
| OKLCH | oklch(50.2% 0.195 289.2) |
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 #6644C9 | 6.49:1 | AA | Lc -86.7 | Fine for body text |
| Black text on #6644C9 | 3.23:1 | AA large text | Lc 22.4 | Dividers and decoration only |
| #6644C9 text on white | 6.49:1 | AA | Lc 81.6 | Fine for body text |
| #6644C9 text on black | 3.23:1 | AA large text | Lc -20.3 | 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 700.
-
Step 50
50
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#E9E7FC
oklch(93.6% 0.028 290.2)
-
Step 200
200
#D7D4FA
oklch(88.4% 0.052 288.9)
-
Step 300
300
#BEB7FA
oklch(80.9% 0.094 288.9)
-
Step 400
400
#9F8EF8
oklch(70.6% 0.152 289.3)
-
Step 500
500
#8A6EF4
oklch(63.1% 0.193 289.3)
-
Step 600
600
#7551E3
oklch(55.5% 0.21 289)
-
Step 700
700 (this color)
#6644C9
oklch(50.2% 0.195 289.2)
-
Step 800
800
#5136A0
oklch(42.7% 0.163 289.4)
-
Step 900
900
#42317F
oklch(37.8% 0.126 288.9)
-
Step 950
950
#261D4A
oklch(26.9% 0.08 289)
#6644C9 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) | #0061CD | 0.105 |
| Deuteranopia (no green cones) | #005BC6 | 0.103 |
| Tritanopia (no blue cones) | #446581 | 0.158 |
| Achromatopsia (no color) | #5E5E5E | 0.196 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6644C9
#6644C9
oklch(50.2% 0.195 289.2)
- #696800
#696800
oklch(50.2% 0.109 109.1)
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 #6644C9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Purple #6241C7 ΔE 0.010
- Blue With A Hint Of Purple #533CC6 ΔE 0.038
- Blurple #5539CC ΔE 0.039
- Iris #6258C4 ΔE 0.045
- Burple #6832E3 ΔE 0.048
- Slate Blue #6A5ACD ΔE 0.049
- Light Indigo #6D5ACF ΔE 0.051
- Purpley Blue #5F34E7 ΔE 0.055
Use #6644C9 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.