#643552
Closest named color: Purple Brown (#673A3F). oklch(39.9% 0.078 343.5), rgb(100, 53, 82).
Aa
White text reads best on this color (9.66:1).
About this color
#643552 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.078 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 9.66:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.078) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.17:1 |
| White text | 9.66:1 |
Values
| HEX | #643552 |
| RGB | rgb(100, 53, 82) |
| HSL | hsl(323, 31%, 30%) |
| OKLCH | oklch(39.9% 0.078 343.5) |
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 #643552 | 9.66:1 | AAA | Lc -96.4 | Preferred for body text |
| Black text on #643552 | 2.17:1 | Fails | Lc 11.8 | Not readable |
| #643552 text on white | 9.66:1 | AAA | Lc 92.2 | Preferred for body text |
| #643552 text on black | 2.17:1 | Fails | Lc -10.3 | 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
#F3E6ED
oklch(93.7% 0.017 343.6)
-
Step 200
200
#EAD1DF
oklch(88.5% 0.033 343)
-
Step 300
300
#DDB2CA
oklch(80.9% 0.059 343.9)
-
Step 400
400
#CA89B0
oklch(70.7% 0.094 343)
-
Step 500
500
#BB6A9C
oklch(63.1% 0.12 343.3)
-
Step 600
600
#A65187
oklch(55.7% 0.13 343.3)
-
Step 700
700
#8E4172
oklch(49.1% 0.121 343.5)
-
Step 800
800
#74365D
oklch(42.8% 0.101 343.6)
-
Step 900
900 (this color)
#643552
oklch(39.9% 0.078 343.5)
-
Step 950
950
#371C2D
oklch(27% 0.05 342.6)
#643552 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) | #384053 | 0.082 |
| Deuteranopia (no green cones) | #444751 | 0.074 |
| Tritanopia (no blue cones) | #693540 | 0.032 |
| Achromatopsia (no color) | #444444 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #643552
#643552
oklch(39.9% 0.078 343.5)
- #10543B
#10543B
oklch(39.8% 0.078 163.3)
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 #643552, 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 0.055
- Grape Purple #5D1451 ΔE 0.076
- Velvet #750851 ΔE 0.078
- Red Purple #820747 ΔE 0.084
- Merlot #730039 ΔE 0.084
- Wine #80013F ΔE 0.086
- Rich Purple #720058 ΔE 0.087
Use #643552 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.