#673F54
Closest named color: Purple Brown (#673A3F). oklch(42.2% 0.063 347.4), rgb(103, 63, 84).
Aa
White text reads best on this color (8.69:1).
About this color
#673F54 is a dark, muted red. In OKLCH its lightness is 42%, its chroma 0.063 and its hue 347°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.033 away. White text reads best on it, at 8.69:1.
| Hue family | Reds |
| Lightness | dark (42%) |
| Chroma | muted (0.063) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.41:1 |
| White text | 8.69:1 |
Values
| HEX | #673F54 |
| RGB | rgb(103, 63, 84) |
| HSL | hsl(329, 24%, 33%) |
| OKLCH | oklch(42.2% 0.063 347.4) |
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 #673F54 | 8.69:1 | AAA | Lc -94.2 | Preferred for body text |
| Black text on #673F54 | 2.41:1 | Fails | Lc 14.3 | Not readable |
| #673F54 text on white | 8.69:1 | AAA | Lc 89.7 | Fine for body text |
| #673F54 text on black | 2.41:1 | Fails | Lc -12.6 | 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 800.
-
Step 50
50
#F8F4F6
oklch(97.1% 0.005 345.3)
-
Step 100
100
#F0E7EB
oklch(93.6% 0.011 348.4)
-
Step 200
200
#E4D4DC
oklch(88.5% 0.021 345.7)
-
Step 300
300
#D4B7C5
oklch(80.8% 0.038 347.3)
-
Step 400
400
#BD92A7
oklch(70.7% 0.059 347.8)
-
Step 500
500
#AC7792
oklch(63.1% 0.075 347.5)
-
Step 600
600
#975F7C
oklch(55.6% 0.082 347.7)
-
Step 700
700
#804E69
oklch(49% 0.077 346.7)
-
Step 800
800 (this color)
#673F54
oklch(42.2% 0.063 347.4)
-
Step 900
900
#553746
oklch(37.7% 0.048 348.3)
-
Step 950
950
#322029
oklch(27% 0.032 348)
#673F54 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) | #424755 | 0.067 |
| Deuteranopia (no green cones) | #4C4E53 | 0.062 |
| Tritanopia (no blue cones) | #6C3E46 | 0.024 |
| Achromatopsia (no color) | #4B4B4B | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673F54
#673F54
oklch(42.2% 0.063 347.4)
- #265946
#265946
oklch(42.3% 0.064 166.4)
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 #673F54, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.033
- Brownish Purple #76424E ΔE 0.034
- Dark Mauve #874C62 ΔE 0.075
- Dusty Grape #545775 ΔE 0.077
- Charcoal Grey #3C4142 ΔE 0.085
- Dusk #4E5481 ΔE 0.088
- YInMn Blue #415A77 ΔE 0.096
- Twilight #4E518B ΔE 0.098
Use #673F54 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.