#6443A5
Closest named color: Rebecca Purple (#663399). oklch(47.1% 0.152 295.5), rgb(100, 67, 165).
Aa
White text reads best on this color (7.27:1).
About this color
#6443A5 is a medium-dark, vivid purple. In OKLCH its lightness is 47%, its chroma 0.152 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.038 away. White text reads best on it, at 7.27:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.88:1 |
| White text | 7.27:1 |
Values
| HEX | #6443A5 |
| RGB | rgb(100, 67, 165) |
| HSL | hsl(260, 42%, 45%) |
| OKLCH | oklch(47.1% 0.152 295.5) |
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 #6443A5 | 7.27:1 | AAA | Lc -89.8 | Fine for body text |
| Black text on #6443A5 | 2.88:1 | Fails | Lc 19.1 | Dividers and decoration only |
| #6443A5 text on white | 7.27:1 | AAA | Lc 84.9 | Fine for body text |
| #6443A5 text on black | 2.88:1 | Fails | Lc -17.1 | 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 700.
-
Step 50
50
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EBE7F7
oklch(93.6% 0.022 297.4)
-
Step 200
200
#DBD4F2
oklch(88.5% 0.041 296.2)
-
Step 300
300
#C4B8EB
oklch(81% 0.072 295.5)
-
Step 400
400
#A791E2
oklch(70.8% 0.118 295.7)
-
Step 500
500
#9274D9
oklch(63.2% 0.149 295.5)
-
Step 600
600
#7D5AC6
oklch(55.6% 0.162 295.6)
-
Step 700
700 (this color)
#6443A5
oklch(47.1% 0.152 295.5)
-
Step 800
800
#563D8B
oklch(42.8% 0.125 295.4)
-
Step 900
900
#47356F
oklch(37.8% 0.097 295.7)
-
Step 950
950
#291F41
oklch(26.9% 0.062 295.5)
#6443A5 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) | #0557A8 | 0.105 |
| Deuteranopia (no green cones) | #1855A3 | 0.098 |
| Tritanopia (no blue cones) | #54586D | 0.120 |
| Achromatopsia (no color) | #575757 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6443A5
#6443A5
oklch(47.1% 0.152 295.5)
- #596200
#596200
oklch(47.2% 0.108 115.8)
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 #6443A5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.038
- Bluey Purple #6241C7 ΔE 0.054
- Blueberry #464196 ΔE 0.057
- Blue With A Hint Of Purple #533CC6 ΔE 0.064
- Iris #6258C4 ΔE 0.066
- Dark Slate Blue #483D8B ΔE 0.066
- Twilight #4E518B ΔE 0.067
- Blurple #5539CC ΔE 0.072
Use #6443A5 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.