#643151
Closest named color: Purple Brown (#673A3F). oklch(39.1% 0.085 343.4), rgb(100, 49, 81).
Aa
White text reads best on this color (9.99:1).
About this color
#643151 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.085 and its hue 343°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.046 away. White text reads best on it, at 9.99:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.085) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.10:1 |
| White text | 9.99:1 |
Values
| HEX | #643151 |
| RGB | rgb(100, 49, 81) |
| HSL | hsl(322, 34%, 29%) |
| OKLCH | oklch(39.1% 0.085 343.4) |
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 #643151 | 9.99:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #643151 | 2.10:1 | Fails | Lc 11.0 | Not readable |
| #643151 text on white | 9.99:1 | AAA | Lc 92.9 | Preferred for body text |
| #643151 text on black | 2.10:1 | Fails | Lc -9.6 | 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
#F3E5ED
oklch(93.5% 0.018 342)
-
Step 200
200
#EBD0DF
oklch(88.4% 0.036 343.3)
-
Step 300
300
#DFB1CB
oklch(80.9% 0.063 343.7)
-
Step 400
400
#CD87B1
oklch(70.7% 0.101 343.2)
-
Step 500
500
#BF679E
oklch(63.2% 0.131 343.3)
-
Step 600
600
#AA4C88
oklch(55.6% 0.142 343.6)
-
Step 700
700
#913D74
oklch(49.1% 0.131 343)
-
Step 800
800
#76335E
oklch(42.7% 0.109 343.4)
-
Step 900
900 (this color)
#643151
oklch(39.1% 0.085 343.4)
-
Step 950
950
#381B2D
oklch(27% 0.053 343.3)
#643151 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) | #343D52 | 0.090 |
| Deuteranopia (no green cones) | #424550 | 0.081 |
| Tritanopia (no blue cones) | #6A313D | 0.036 |
| Achromatopsia (no color) | #424242 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #643151
#643151
oklch(39.1% 0.085 343.4)
- #005338
#005338
oklch(39.1% 0.084 163)
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 #643151, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.046
- Brownish Purple #76424E ΔE 0.063
- Grape Purple #5D1451 ΔE 0.067
- Velvet #750851 ΔE 0.069
- Merlot #730039 ΔE 0.076
- Red Purple #820747 ΔE 0.078
- Rich Purple #720058 ΔE 0.078
- Wine #80013F ΔE 0.080
Use #643151 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.