#643158
Closest named color: Purple Brown (#673A3F). oklch(39.4% 0.091 336.8), rgb(100, 49, 88).
Aa
White text reads best on this color (9.89:1).
About this color
#643158 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.091 and its hue 337°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.056 away. White text reads best on it, at 9.89:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.091) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.12:1 |
| White text | 9.89:1 |
Values
| HEX | #643158 |
| RGB | rgb(100, 49, 88) |
| HSL | hsl(314, 34%, 29%) |
| OKLCH | oklch(39.4% 0.091 336.8) |
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 #643158 | 9.89:1 | AAA | Lc -96.8 | Preferred for body text |
| Black text on #643158 | 2.12:1 | Fails | Lc 11.3 | Not readable |
| #643158 text on white | 9.89:1 | AAA | Lc 92.6 | Preferred for body text |
| #643158 text on black | 2.12:1 | Fails | Lc -9.8 | 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 900.
-
Step 50
50
#FAF3F8
oklch(97.1% 0.01 335.5)
-
Step 100
100
#F3E5EF
oklch(93.6% 0.02 335.7)
-
Step 200
200
#EAD0E2
oklch(88.4% 0.037 337)
-
Step 300
300
#DEB0D1
oklch(80.8% 0.069 336.6)
-
Step 400
400
#CC86BA
oklch(70.8% 0.109 336.6)
-
Step 500
500
#BD65A8
oklch(63% 0.14 336.8)
-
Step 600
600
#A84A93
oklch(55.5% 0.152 336.9)
-
Step 700
700
#903B7E
oklch(49.1% 0.141 336.5)
-
Step 800
800
#753166
oklch(42.6% 0.117 336.8)
-
Step 900
900 (this color)
#643158
oklch(39.4% 0.091 336.8)
-
Step 950
950
#381A31
oklch(27% 0.059 336.5)
#643158 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) | #323E59 | 0.093 |
| Deuteranopia (no green cones) | #404657 | 0.084 |
| Tritanopia (no blue cones) | #693340 | 0.044 |
| Achromatopsia (no color) | #434343 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #643158
#643158
oklch(39.4% 0.091 336.8)
- #075431
#075431
oklch(39.4% 0.091 156.6)
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 #643158, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.056
- Grape Purple #5D1451 ΔE 0.064
- Velvet #750851 ΔE 0.067
- Brownish Purple #76424E ΔE 0.068
- Rich Purple #720058 ΔE 0.074
- Red Purple #820747 ΔE 0.079
- Merlot #730039 ΔE 0.080
- Wine #80013F ΔE 0.083
Use #643158 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.