#643867
Closest named color: Brownish Purple (#76424E). oklch(41.4% 0.093 324.8), rgb(100, 56, 103).
Aa
White text reads best on this color (9.11:1).
About this color
#643867 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.093 and its hue 325°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.069 away. White text reads best on it, at 9.11:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.093) |
| Temperature | in between |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.30:1 |
| White text | 9.11:1 |
Values
| HEX | #643867 |
| RGB | rgb(100, 56, 103) |
| HSL | hsl(296, 30%, 31%) |
| OKLCH | oklch(41.4% 0.093 324.8) |
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 #643867 | 9.11:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #643867 | 2.30:1 | Fails | Lc 13.2 | Not readable |
| #643867 text on white | 9.11:1 | AAA | Lc 90.8 | Preferred for body text |
| #643867 text on black | 2.30:1 | Fails | Lc -11.6 | Not readable |
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 800.
-
Step 50
50
#F8F4F8
oklch(97.1% 0.007 325.6)
-
Step 100
100
#EFE6F0
oklch(93.5% 0.016 322.7)
-
Step 200
200
#E4D3E4
oklch(88.6% 0.029 325.8)
-
Step 300
300
#D3B5D4
oklch(80.9% 0.054 325.1)
-
Step 400
400
#BC8EBF
oklch(70.7% 0.087 324.4)
-
Step 500
500
#AB71AF
oklch(63.1% 0.112 324.5)
-
Step 600
600
#96589A
oklch(55.5% 0.121 324.9)
-
Step 700
700
#804884
oklch(49.1% 0.113 324.7)
-
Step 800
800 (this color)
#643867
oklch(41.4% 0.093 324.8)
-
Step 900
900
#553357
oklch(37.7% 0.074 324.9)
-
Step 950
950
#321E33
oklch(27% 0.047 325.1)
#643867 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) | #334569 | 0.087 |
| Deuteranopia (no green cones) | #3F4A66 | 0.078 |
| Tritanopia (no blue cones) | #663D4A | 0.055 |
| Achromatopsia (no color) | #484848 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #643867
#643867
oklch(41.4% 0.093 324.8)
- #265829
#265829
oklch(41.3% 0.093 144.8)
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 #643867, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.069
- Purple Brown #673A3F ΔE 0.070
- Dark Slate Blue #483D8B ΔE 0.078
- Grape Purple #5D1451 ΔE 0.083
- Dusk #4E5481 ΔE 0.084
- Velvet #750851 ΔE 0.084
- Twilight #4E518B ΔE 0.085
- Dusty Grape #545775 ΔE 0.086
Use #643867 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.