#643A65
Closest named color: Brownish Purple (#76424E). oklch(41.6% 0.087 326.2), rgb(100, 58, 101).
Aa
White text reads best on this color (8.99:1).
About this color
#643A65 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.087 and its hue 326°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.063 away. White text reads best on it, at 8.99:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.087) |
| Temperature | in between |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.33:1 |
| White text | 8.99:1 |
Values
| HEX | #643A65 |
| RGB | rgb(100, 58, 101) |
| HSL | hsl(299, 27%, 31%) |
| OKLCH | oklch(41.6% 0.087 326.2) |
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 #643A65 | 8.99:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #643A65 | 2.33:1 | Fails | Lc 13.5 | Not readable |
| #643A65 text on white | 8.99:1 | AAA | Lc 90.5 | Preferred for body text |
| #643A65 text on black | 2.33:1 | Fails | Lc -11.8 | 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
#EFE7EF
oklch(93.7% 0.014 325.7)
-
Step 200
200
#E3D3E3
oklch(88.5% 0.028 325.8)
-
Step 300
300
#D2B6D2
oklch(80.9% 0.05 326)
-
Step 400
400
#BB8FBC
oklch(70.6% 0.081 325.7)
-
Step 500
500
#AA73AB
oklch(63.2% 0.103 326.1)
-
Step 600
600
#955A96
oklch(55.6% 0.113 326.4)
-
Step 700
700
#7F4A80
oklch(49.1% 0.104 326.4)
-
Step 800
800 (this color)
#643A65
oklch(41.6% 0.087 326.2)
-
Step 900
900
#543455
oklch(37.7% 0.068 325.8)
-
Step 950
950
#311F32
oklch(27% 0.043 324.9)
#643A65 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) | #364667 | 0.082 |
| Deuteranopia (no green cones) | #414B64 | 0.074 |
| Tritanopia (no blue cones) | #663E4A | 0.051 |
| Achromatopsia (no color) | #494949 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #643A65
#643A65
oklch(41.6% 0.087 326.2)
- #29582E
#29582E
oklch(41.6% 0.086 146)
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 #643A65, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.063
- Purple Brown #673A3F ΔE 0.064
- Dusk #4E5481 ΔE 0.081
- Dusty Grape #545775 ΔE 0.081
- Dark Slate Blue #483D8B ΔE 0.081
- Twilight #4E518B ΔE 0.083
- Grape Purple #5D1451 ΔE 0.087
- Velvet #750851 ΔE 0.087
Use #643A65 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.