#6645CA
Closest named color: Bluey Purple (#6241C7). oklch(50.4% 0.195 288.8), rgb(102, 69, 202).
Aa
White text reads best on this color (6.42:1).
About this color
#6645CA 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 0.012 away. White text reads best on it, at 6.42:1.
| Hue family | Purples |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.195) |
| Temperature | cool |
| Nearest name | Bluey Purple (#6241C7) |
| Black text | 3.26:1 |
| White text | 6.42:1 |
Values
| HEX | #6645CA |
| RGB | rgb(102, 69, 202) |
| HSL | hsl(255, 56%, 53%) |
| OKLCH | oklch(50.4% 0.195 288.8) |
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 #6645CA | 6.42:1 | AA | Lc -86.5 | Fine for body text |
| Black text on #6645CA | 3.26:1 | AA large text | Lc 22.7 | Dividers and decoration only |
| #6645CA text on white | 6.42:1 | AA | Lc 81.3 | Fine for body text |
| #6645CA text on black | 3.26:1 | AA large text | Lc -20.5 | 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
#D7D4FB
oklch(88.5% 0.053 288.8)
-
Step 300
300
#BEB7FA
oklch(80.9% 0.094 288.9)
-
Step 400
400
#9E8FF8
oklch(70.7% 0.15 288.5)
-
Step 500
500
#896EF5
oklch(63.1% 0.194 288.8)
-
Step 600
600
#7552E3
oklch(55.7% 0.209 288.9)
-
Step 700
700 (this color)
#6645CA
oklch(50.4% 0.195 288.8)
-
Step 800
800
#5037A0
oklch(42.8% 0.161 288.6)
-
Step 900
900
#42317F
oklch(37.8% 0.126 288.9)
-
Step 950
950
#261E4A
oklch(27.1% 0.079 288.4)
#6645CA 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) | #0061CE | 0.104 |
| Deuteranopia (no green cones) | #005BC7 | 0.101 |
| Tritanopia (no blue cones) | #436681 | 0.160 |
| Achromatopsia (no color) | #5F5F5F | 0.196 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6645CA
#6645CA
oklch(50.4% 0.195 288.8)
- #6A6900
#6A6900
oklch(50.5% 0.11 109.1)
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 #6645CA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Purple #6241C7 ΔE 0.012
- Blue With A Hint Of Purple #533CC6 ΔE 0.040
- Blurple #5539CC ΔE 0.040
- Iris #6258C4 ΔE 0.043
- Slate Blue #6A5ACD ΔE 0.047
- Burple #6832E3 ΔE 0.048
- Light Indigo #6D5ACF ΔE 0.049
- Purpley Blue #5F34E7 ΔE 0.055
Use #6645CA 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.