#673B54
Closest named color: Purple Brown (#673A3F). oklch(41.4% 0.071 345.5), rgb(103, 59, 84).
Aa
White text reads best on this color (9.01:1).
About this color
#673B54 is a dark, moderately saturated red. In OKLCH its lightness is 41%, its chroma 0.071 and its hue 346°. 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 9.01:1.
| Hue family | Reds |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.071) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.33:1 |
| White text | 9.01:1 |
Values
| HEX | #673B54 |
| RGB | rgb(103, 59, 84) |
| HSL | hsl(326, 27%, 32%) |
| OKLCH | oklch(41.4% 0.071 345.5) |
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 #673B54 | 9.01:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #673B54 | 2.33:1 | Fails | Lc 13.5 | Not readable |
| #673B54 text on white | 9.01:1 | AAA | Lc 90.5 | Preferred for body text |
| #673B54 text on black | 2.33:1 | Fails | Lc -11.8 | 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 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
#E5D3DC
oklch(88.4% 0.023 345.8)
-
Step 300
300
#D5B6C6
oklch(80.8% 0.041 345.6)
-
Step 400
400
#C090AA
oklch(70.7% 0.067 345.3)
-
Step 500
500
#AF7495
oklch(63.1% 0.086 345.2)
-
Step 600
600
#9A5C7F
oklch(55.6% 0.093 345.6)
-
Step 700
700
#834C6B
oklch(49.1% 0.085 345.8)
-
Step 800
800 (this color)
#673B54
oklch(41.4% 0.071 345.5)
-
Step 900
900
#573548
oklch(37.7% 0.056 345.5)
-
Step 950
950
#331F2A
oklch(26.9% 0.036 345.7)
#673B54 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) | #3E4555 | 0.075 |
| Deuteranopia (no green cones) | #494C53 | 0.070 |
| Tritanopia (no blue cones) | #6C3B44 | 0.028 |
| Achromatopsia (no color) | #494949 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673B54
#673B54
oklch(41.4% 0.071 345.5)
- #1D5842
#1D5842
oklch(41.5% 0.072 165)
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 #673B54, 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 0.040
- Dark Mauve #874C62 ΔE 0.081
- Dusty Grape #545775 ΔE 0.085
- Charcoal Grey #3C4142 ΔE 0.088
- Velvet #750851 ΔE 0.089
- Red Purple #820747 ΔE 0.090
- Grape Purple #5D1451 ΔE 0.093
Use #673B54 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.