#643448
Closest named color: Purple Brown (#673A3F). oklch(39.3% 0.073 354.6), rgb(100, 52, 72).
Aa
White text reads best on this color (9.87:1).
About this color
#643448 is a dark, moderately saturated red. In OKLCH its lightness is 39%, its chroma 0.073 and its hue 355°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.027 away. White text reads best on it, at 9.87:1.
| Hue family | Reds |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.073) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.12:1 |
| White text | 9.87:1 |
Values
| HEX | #643448 |
| RGB | rgb(100, 52, 72) |
| HSL | hsl(335, 32%, 30%) |
| OKLCH | oklch(39.3% 0.073 354.6) |
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 #643448 | 9.87:1 | AAA | Lc -96.8 | Preferred for body text |
| Black text on #643448 | 2.12:1 | Fails | Lc 11.3 | Not readable |
| #643448 text on white | 9.87:1 | AAA | Lc 92.7 | Preferred for body text |
| #643448 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
#F3E6EA
oklch(93.6% 0.015 356.6)
-
Step 200
200
#EBD1DA
oklch(88.5% 0.031 354.8)
-
Step 300
300
#DFB2C3
oklch(80.9% 0.057 353.8)
-
Step 400
400
#CD8AA4
oklch(70.8% 0.088 354.6)
-
Step 500
500
#BE6B8D
oklch(63.1% 0.113 354.8)
-
Step 600
600
#A95277
oklch(55.6% 0.121 355)
-
Step 700
700
#914264
oklch(49.2% 0.113 355)
-
Step 800
800
#763752
oklch(42.8% 0.094 354.8)
-
Step 900
900 (this color)
#643448
oklch(39.3% 0.073 354.6)
-
Step 950
950
#381C28
oklch(26.9% 0.047 353.6)
#643448 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) | #3A3E49 | 0.080 |
| Deuteranopia (no green cones) | #464647 | 0.073 |
| Tritanopia (no blue cones) | #6B323B | 0.024 |
| Achromatopsia (no color) | #434343 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #643448
#643448
oklch(39.3% 0.073 354.6)
- #025243
#025243
oklch(39.2% 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 #643448, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.027
- Brownish Purple #76424E ΔE 0.054
- Merlot #730039 ΔE 0.080
- Grape Purple #5D1451 ΔE 0.081
- Velvet #750851 ΔE 0.082
- Charcoal Grey #3C4142 ΔE 0.082
- Bordeaux #7B002C ΔE 0.084
- Wine #80013F ΔE 0.084
Use #643448 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.