#643148
Closest named color: Purple Brown (#673A3F). oklch(38.8% 0.079 353), rgb(100, 49, 72).
Aa
White text reads best on this color (10.12:1).
About this color
#643148 is a dark, moderately saturated red. In OKLCH its lightness is 39%, its chroma 0.079 and its hue 353°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.034 away. White text reads best on it, at 10.12:1.
| Hue family | Reds |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.079) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.07:1 |
| White text | 10.12:1 |
Values
| HEX | #643148 |
| RGB | rgb(100, 49, 72) |
| HSL | hsl(333, 34%, 29%) |
| OKLCH | oklch(38.8% 0.079 353) |
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 #643148 | 10.12:1 | AAA | Lc -97.3 | Preferred for body text |
| Black text on #643148 | 2.07:1 | Fails | Lc 10.7 | Not readable |
| #643148 text on white | 10.12:1 | AAA | Lc 93.2 | Preferred for body text |
| #643148 text on black | 2.07:1 | Fails | Lc -9.3 | 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
#F4E5EB
oklch(93.6% 0.018 351.2)
-
Step 200
200
#ECD1DB
oklch(88.6% 0.033 353.4)
-
Step 300
300
#E0B1C4
oklch(80.8% 0.06 352.4)
-
Step 400
400
#CF88A6
oklch(70.8% 0.094 352.8)
-
Step 500
500
#C16890
oklch(63.1% 0.122 352.8)
-
Step 600
600
#AC4E7A
oklch(55.6% 0.132 353)
-
Step 700
700
#933F67
oklch(49.1% 0.122 352.8)
-
Step 800
800
#783454
oklch(42.7% 0.102 352.8)
-
Step 900
900 (this color)
#643148
oklch(38.8% 0.079 353)
-
Step 950
950
#391B29
oklch(26.9% 0.051 351.7)
#643148 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) | #373C49 | 0.086 |
| Deuteranopia (no green cones) | #444547 | 0.079 |
| Tritanopia (no blue cones) | #6B2F39 | 0.028 |
| Achromatopsia (no color) | #424242 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #643148
#643148
oklch(38.8% 0.079 353)
- #005141
#005141
oklch(38.8% 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 #643148, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.034
- Brownish Purple #76424E ΔE 0.060
- Grape Purple #5D1451 ΔE 0.073
- Merlot #730039 ΔE 0.074
- Velvet #750851 ΔE 0.075
- Wine #80013F ΔE 0.079
- Bordeaux #7B002C ΔE 0.079
- Red Purple #820747 ΔE 0.079
Use #643148 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.