#643256
Closest named color: Purple Brown (#673A3F). oklch(39.5% 0.087 338.7), rgb(100, 50, 86).
Aa
White text reads best on this color (9.84:1).
About this color
#643256 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.087 and its hue 339°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.051 away. White text reads best on it, at 9.84:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.087) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.13:1 |
| White text | 9.84:1 |
Values
| HEX | #643256 |
| RGB | rgb(100, 50, 86) |
| HSL | hsl(317, 33%, 29%) |
| OKLCH | oklch(39.5% 0.087 338.7) |
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 #643256 | 9.84:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #643256 | 2.13:1 | Fails | Lc 11.4 | Not readable |
| #643256 text on white | 9.84:1 | AAA | Lc 92.6 | Preferred for body text |
| #643256 text on black | 2.13:1 | Fails | Lc -9.9 | 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 900.
-
Step 50
50
#FAF3F7
oklch(97.1% 0.009 341.8)
-
Step 100
100
#F3E5EE
oklch(93.6% 0.019 338.7)
-
Step 200
200
#EAD0E1
oklch(88.4% 0.037 338.7)
-
Step 300
300
#DEB1CF
oklch(81% 0.065 338.8)
-
Step 400
400
#CC87B7
oklch(70.8% 0.105 338.7)
-
Step 500
500
#BD67A4
oklch(63.2% 0.133 339.1)
-
Step 600
600
#A84C8F
oklch(55.6% 0.146 339)
-
Step 700
700
#903D7A
oklch(49.2% 0.135 338.9)
-
Step 800
800
#753363
oklch(42.8% 0.112 339.1)
-
Step 900
900 (this color)
#643256
oklch(39.5% 0.087 338.7)
-
Step 950
950
#381B2F
oklch(27.1% 0.055 339.9)
#643256 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) | #343E57 | 0.089 |
| Deuteranopia (no green cones) | #414655 | 0.081 |
| Tritanopia (no blue cones) | #693340 | 0.040 |
| Achromatopsia (no color) | #434343 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #643256
#643256
oklch(39.5% 0.087 338.7)
- #085434
#085434
oklch(39.5% 0.088 158.5)
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 #643256, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.051
- Brownish Purple #76424E ΔE 0.064
- Grape Purple #5D1451 ΔE 0.067
- Velvet #750851 ΔE 0.070
- Rich Purple #720058 ΔE 0.077
- Red Purple #820747 ΔE 0.080
- Merlot #730039 ΔE 0.081
- Wine #80013F ΔE 0.083
Use #643256 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.