#643449
Closest named color: Purple Brown (#673A3F). oklch(39.3% 0.074 353.4), rgb(100, 52, 73).
Aa
White text reads best on this color (9.86:1).
About this color
#643449 is a dark, moderately saturated red. In OKLCH its lightness is 39%, its chroma 0.074 and its hue 353°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.028 away. White text reads best on it, at 9.86:1.
| Hue family | Reds |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.074) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.12:1 |
| White text | 9.86:1 |
Values
| HEX | #643449 |
| RGB | rgb(100, 52, 73) |
| HSL | hsl(334, 32%, 30%) |
| OKLCH | oklch(39.3% 0.074 353.4) |
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 #643449 | 9.86:1 | AAA | Lc -96.8 | Preferred for body text |
| Black text on #643449 | 2.12:1 | Fails | Lc 11.3 | Not readable |
| #643449 text on white | 9.86:1 | AAA | Lc 92.6 | Preferred for body text |
| #643449 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
#FAF3F6
oklch(97% 0.008 349.2)
-
Step 100
100
#F3E6EB
oklch(93.7% 0.016 352)
-
Step 200
200
#EBD1DB
oklch(88.5% 0.032 352.5)
-
Step 300
300
#DEB2C3
oklch(80.8% 0.055 353.3)
-
Step 400
400
#CD89A5
oklch(70.7% 0.09 353.3)
-
Step 500
500
#BE6B8F
oklch(63.1% 0.114 353.4)
-
Step 600
600
#A95179
oklch(55.6% 0.124 353.3)
-
Step 700
700
#914266
oklch(49.2% 0.114 353.5)
-
Step 800
800
#763653
oklch(42.7% 0.096 353.5)
-
Step 900
900 (this color)
#643449
oklch(39.3% 0.074 353.4)
-
Step 950
950
#381C28
oklch(26.9% 0.047 353.6)
#643449 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) | #3A3E4A | 0.080 |
| Deuteranopia (no green cones) | #464648 | 0.073 |
| Tritanopia (no blue cones) | #6A323C | 0.024 |
| Achromatopsia (no color) | #434343 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #643449
#643449
oklch(39.3% 0.074 353.4)
- #035242
#035242
oklch(39.2% 0.074 173.5)
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 #643449, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.028
- Brownish Purple #76424E ΔE 0.055
- Grape Purple #5D1451 ΔE 0.080
- Merlot #730039 ΔE 0.080
- Velvet #750851 ΔE 0.081
- Charcoal Grey #3C4142 ΔE 0.083
- Red Purple #820747 ΔE 0.084
- Wine #80013F ΔE 0.084
Use #643449 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.