#643653
Closest named color: Purple Brown (#673A3F). oklch(40.1% 0.077 342.7), rgb(100, 54, 83).
Aa
White text reads best on this color (9.56:1).
About this color
#643653 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.077 and its hue 343°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.039 away. White text reads best on it, at 9.56:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.077) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.19:1 |
| White text | 9.56:1 |
Values
| HEX | #643653 |
| RGB | rgb(100, 54, 83) |
| HSL | hsl(322, 30%, 30%) |
| OKLCH | oklch(40.1% 0.077 342.7) |
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 #643653 | 9.56:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #643653 | 2.19:1 | Fails | Lc 12.0 | Not readable |
| #643653 text on white | 9.56:1 | AAA | Lc 91.9 | Preferred for body text |
| #643653 text on black | 2.19:1 | Fails | Lc -10.5 | 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
#F9F3F7
oklch(97% 0.008 337.4)
-
Step 100
100
#F2E6ED
oklch(93.6% 0.016 341.4)
-
Step 200
200
#E9D1DF
oklch(88.5% 0.032 341.8)
-
Step 300
300
#DCB2CB
oklch(80.8% 0.059 342)
-
Step 400
400
#C989B0
oklch(70.6% 0.093 342.5)
-
Step 500
500
#BA6B9D
oklch(63.1% 0.118 342.5)
-
Step 600
600
#A55187
oklch(55.5% 0.129 342.8)
-
Step 700
700
#8D4273
oklch(49.2% 0.119 342.5)
-
Step 800
800
#73365D
oklch(42.7% 0.1 343.1)
-
Step 900
900 (this color)
#643653
oklch(40.1% 0.077 342.7)
-
Step 950
950
#371C2D
oklch(27% 0.05 342.6)
#643653 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) | #394154 | 0.080 |
| Deuteranopia (no green cones) | #454852 | 0.073 |
| Tritanopia (no blue cones) | #693641 | 0.032 |
| Achromatopsia (no color) | #454545 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #643653
#643653
oklch(40.1% 0.077 342.7)
- #14553B
#14553B
oklch(40.2% 0.078 162)
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 #643653, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.039
- Brownish Purple #76424E ΔE 0.054
- Grape Purple #5D1451 ΔE 0.078
- Velvet #750851 ΔE 0.080
- Red Purple #820747 ΔE 0.085
- Merlot #730039 ΔE 0.087
- Charcoal Grey #3C4142 ΔE 0.087
- Wine #80013F ΔE 0.088
Use #643653 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.