#643A60
Closest named color: Purple Brown (#673A3F). oklch(41.4% 0.081 330.4), rgb(100, 58, 96).
Aa
White text reads best on this color (9.06:1).
About this color
#643A60 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.081 and its hue 330°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.056 away. White text reads best on it, at 9.06:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.081) |
| Temperature | in between |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.31:1 |
| White text | 9.06:1 |
Values
| HEX | #643A60 |
| RGB | rgb(100, 58, 96) |
| HSL | hsl(306, 27%, 31%) |
| OKLCH | oklch(41.4% 0.081 330.4) |
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 #643A60 | 9.06:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #643A60 | 2.31:1 | Fails | Lc 13.3 | Not readable |
| #643A60 text on white | 9.06:1 | AAA | Lc 90.7 | Preferred for body text |
| #643A60 text on black | 2.31:1 | Fails | Lc -11.7 | 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
#E4D3E1
oklch(88.5% 0.026 331.6)
-
Step 300
300
#D3B6CF
oklch(80.9% 0.047 330.5)
-
Step 400
400
#BC90B7
oklch(70.7% 0.075 330.2)
-
Step 500
500
#AB73A5
oklch(63% 0.098 330.5)
-
Step 600
600
#965B90
oklch(55.6% 0.106 330.6)
-
Step 700
700
#804B7B
oklch(49.2% 0.098 330.4)
-
Step 800
800 (this color)
#643A60
oklch(41.4% 0.081 330.4)
-
Step 900
900
#553551
oklch(37.8% 0.063 331.2)
-
Step 950
950
#321F30
oklch(27.1% 0.041 330.4)
#643A60 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) | #384561 | 0.079 |
| Deuteranopia (no green cones) | #434B5F | 0.072 |
| Tritanopia (no blue cones) | #673D48 | 0.045 |
| Achromatopsia (no color) | #494949 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #643A60
#643A60
oklch(41.4% 0.081 330.4)
- #265833
#265833
oklch(41.5% 0.082 150)
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 #643A60, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.056
- Brownish Purple #76424E ΔE 0.057
- Dusty Grape #545775 ΔE 0.082
- Dusk #4E5481 ΔE 0.084
- Grape Purple #5D1451 ΔE 0.086
- Velvet #750851 ΔE 0.086
- Dark Slate Blue #483D8B ΔE 0.088
- Dark Mauve #874C62 ΔE 0.088
Use #643A60 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.