#643146
Closest named color: Purple Brown (#673A3F). oklch(38.7% 0.078 355.3), rgb(100, 49, 70).
Aa
White text reads best on this color (10.14:1).
About this color
#643146 is a dark, moderately saturated red. In OKLCH its lightness is 39%, its chroma 0.078 and its hue 355°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.032 away. White text reads best on it, at 10.14:1.
| Hue family | Reds |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.078) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.06:1 |
| White text | 10.14:1 |
Values
| HEX | #643146 |
| RGB | rgb(100, 49, 70) |
| HSL | hsl(335, 34%, 29%) |
| OKLCH | oklch(38.7% 0.078 355.3) |
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 #643146 | 10.14:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #643146 | 2.06:1 | Fails | Lc 10.7 | Not readable |
| #643146 text on white | 10.14:1 | AAA | Lc 93.3 | Preferred for body text |
| #643146 text on black | 2.06:1 | Fails | Lc -9.2 | 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
#FAF3F6
oklch(97% 0.008 349.2)
-
Step 100
100
#F4E5EA
oklch(93.5% 0.018 355.1)
-
Step 200
200
#ECD1DA
oklch(88.6% 0.032 355.6)
-
Step 300
300
#E0B2C2
oklch(80.9% 0.057 355.7)
-
Step 400
400
#CF88A3
oklch(70.7% 0.093 355.3)
-
Step 500
500
#C1698D
oklch(63.1% 0.119 355.1)
-
Step 600
600
#AC4F77
oklch(55.6% 0.129 355.1)
-
Step 700
700
#943F64
oklch(49.2% 0.122 355.3)
-
Step 800
800
#783551
oklch(42.8% 0.099 355.8)
-
Step 900
900 (this color)
#643146
oklch(38.7% 0.078 355.3)
-
Step 950
950
#391C27
oklch(27.1% 0.048 356.6)
#643146 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) | #383C47 | 0.085 |
| Deuteranopia (no green cones) | #454545 | 0.078 |
| Tritanopia (no blue cones) | #6B2E39 | 0.024 |
| Achromatopsia (no color) | #414141 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #643146
#643146
oklch(38.7% 0.078 355.3)
- #005142
#005142
oklch(38.8% 0.073 174.7)
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 #643146, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.032
- Brownish Purple #76424E ΔE 0.060
- Merlot #730039 ΔE 0.074
- Grape Purple #5D1451 ΔE 0.075
- Velvet #750851 ΔE 0.077
- Bordeaux #7B002C ΔE 0.078
- Wine #80013F ΔE 0.079
- Red Purple #820747 ΔE 0.080
Use #643146 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.