#6443A8
Closest named color: Rebecca Purple (#663399). oklch(47.3% 0.155 294.8), rgb(100, 67, 168).
Aa
White text reads best on this color (7.21:1).
About this color
#6443A8 is a medium-dark, vivid purple. In OKLCH its lightness is 47%, its chroma 0.155 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.041 away. White text reads best on it, at 7.21:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.155) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.91:1 |
| White text | 7.21:1 |
Values
| HEX | #6443A8 |
| RGB | rgb(100, 67, 168) |
| HSL | hsl(260, 43%, 46%) |
| OKLCH | oklch(47.3% 0.155 294.8) |
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 #6443A8 | 7.21:1 | AAA | Lc -89.6 | Fine for body text |
| Black text on #6443A8 | 2.91:1 | Fails | Lc 19.3 | Dividers and decoration only |
| #6443A8 text on white | 7.21:1 | AAA | Lc 84.7 | Fine for body text |
| #6443A8 text on black | 2.91:1 | Fails | Lc -17.3 | 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EAE7F7
oklch(93.5% 0.022 294.6)
-
Step 200
200
#DAD4F3
oklch(88.4% 0.043 294.4)
-
Step 300
300
#C3B8ED
oklch(81% 0.075 294.2)
-
Step 400
400
#A691E4
oklch(70.8% 0.121 294.8)
-
Step 500
500
#9173DC
oklch(63.1% 0.155 294.7)
-
Step 600
600
#7C59C9
oklch(55.5% 0.167 294.8)
-
Step 700
700 (this color)
#6443A8
oklch(47.3% 0.155 294.8)
-
Step 800
800
#553C8D
oklch(42.7% 0.129 294.5)
-
Step 900
900
#463470
oklch(37.6% 0.1 295)
-
Step 950
950
#291F42
oklch(27% 0.064 294.9)
#6443A8 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) | #0058AB | 0.106 |
| Deuteranopia (no green cones) | #1256A6 | 0.101 |
| Tritanopia (no blue cones) | #53596F | 0.122 |
| Achromatopsia (no color) | #575757 | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6443A8
#6443A8
oklch(47.3% 0.155 294.8)
- #5A6200
#5A6200
oklch(47.3% 0.107 115.2)
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 #6443A8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.041
- Bluey Purple #6241C7 ΔE 0.050
- Blueberry #464196 ΔE 0.059
- Blue With A Hint Of Purple #533CC6 ΔE 0.060
- Iris #6258C4 ΔE 0.063
- Blurple #5539CC ΔE 0.068
- Dark Slate Blue #483D8B ΔE 0.069
- Twilight #4E518B ΔE 0.071
Use #6443A8 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.