#643D60
Closest named color: Brownish Purple (#76424E). oklch(41.9% 0.075 330.5), rgb(100, 61, 96).
Aa
White text reads best on this color (8.82:1).
About this color
#643D60 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.075 and its hue 331°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.052 away. White text reads best on it, at 8.82:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.075) |
| Temperature | in between |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.37:1 |
| White text | 8.82:1 |
Values
| HEX | #643D60 |
| RGB | rgb(100, 61, 96) |
| HSL | hsl(306, 24%, 32%) |
| OKLCH | oklch(41.9% 0.075 330.5) |
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 #643D60 | 8.82:1 | AAA | Lc -94.5 | Preferred for body text |
| Black text on #643D60 | 2.37:1 | Fails | Lc 13.9 | Not readable |
| #643D60 text on white | 8.82:1 | AAA | Lc 90.0 | Preferred for body text |
| #643D60 text on black | 2.37:1 | Fails | Lc -12.2 | 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
#F8F4F7
oklch(97.1% 0.006 334)
-
Step 100
100
#EFE7EE
oklch(93.6% 0.013 329.6)
-
Step 200
200
#E3D4E1
oklch(88.6% 0.024 330)
-
Step 300
300
#D2B7CE
oklch(80.9% 0.044 330.9)
-
Step 400
400
#BA91B5
oklch(70.7% 0.07 330.4)
-
Step 500
500
#A975A3
oklch(63.1% 0.091 330.6)
-
Step 600
600
#945D8E
oklch(55.6% 0.098 330.7)
-
Step 700
700
#7E4D79
oklch(49.2% 0.091 330.5)
-
Step 800
800 (this color)
#643D60
oklch(41.9% 0.075 330.5)
-
Step 900
900
#533650
oklch(37.7% 0.058 330.3)
-
Step 950
950
#31202F
oklch(27.1% 0.037 330.6)
#643D60 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) | #3C4761 | 0.072 |
| Deuteranopia (no green cones) | #454C5F | 0.066 |
| Tritanopia (no blue cones) | #67404A | 0.041 |
| Achromatopsia (no color) | #4A4A4A | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #643D60
#643D60
oklch(41.9% 0.075 330.5)
- #2B5837
#2B5837
oklch(41.8% 0.074 150.7)
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 #643D60, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.052
- Purple Brown #673A3F ΔE 0.054
- Dusty Grape #545775 ΔE 0.075
- Dusk #4E5481 ΔE 0.078
- Dark Mauve #874C62 ΔE 0.083
- Twilight #4E518B ΔE 0.085
- Dark Slate Blue #483D8B ΔE 0.089
- Charcoal Grey #3C4142 ΔE 0.092
Use #643D60 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.