#673748
Closest named color: Purple Brown (#673A3F). oklch(40.3% 0.072 358.2), rgb(103, 55, 72).
Aa
White text reads best on this color (9.47:1).
About this color
#673748 is a dark, moderately saturated red. In OKLCH its lightness is 40%, its chroma 0.072 and its hue 358°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.019 away. White text reads best on it, at 9.47:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.072) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.21:1 |
| White text | 9.47:1 |
Values
| HEX | #673748 |
| RGB | rgb(103, 55, 72) |
| HSL | hsl(339, 30%, 31%) |
| OKLCH | oklch(40.3% 0.072 358.2) |
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 #673748 | 9.47:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #673748 | 2.21:1 | Fails | Lc 12.3 | Not readable |
| #673748 text on white | 9.47:1 | AAA | Lc 91.7 | Preferred for body text |
| #673748 text on black | 2.21:1 | Fails | Lc -10.7 | 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
#F9F4F5
oklch(97.1% 0.006 3.3)
-
Step 100
100
#F1E7EA
oklch(93.7% 0.012 357)
-
Step 200
200
#E7D3D9
oklch(88.5% 0.024 357.4)
-
Step 300
300
#D8B6C0
oklch(80.9% 0.041 358.5)
-
Step 400
400
#C490A0
oklch(70.8% 0.066 358.7)
-
Step 500
500
#B47389
oklch(63.1% 0.086 358)
-
Step 600
600
#9F5B73
oklch(55.6% 0.094 358)
-
Step 700
700
#884B60
oklch(49.2% 0.086 358.7)
-
Step 800
800 (this color)
#673748
oklch(40.3% 0.072 358.2)
-
Step 900
900
#5A3541
oklch(37.8% 0.056 359.2)
-
Step 950
950
#351F26
oklch(27% 0.036 359.2)
#673748 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) | #3E4049 | 0.077 |
| Deuteranopia (no green cones) | #4A4947 | 0.071 |
| Tritanopia (no blue cones) | #6E343D | 0.021 |
| Achromatopsia (no color) | #464646 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673748
#673748
oklch(40.3% 0.072 358.2)
- #075548
#075548
oklch(40.3% 0.072 177.3)
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 #673748, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.019
- Brownish Purple #76424E ΔE 0.044
- Chestnut #742802 ΔE 0.082
- Charcoal Grey #3C4142 ΔE 0.084
- Red Purple #820747 ΔE 0.086
- Merlot #730039 ΔE 0.086
- Wine #80013F ΔE 0.086
- Bordeaux #7B002C ΔE 0.086
Use #673748 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.