#673A3F
Named color: Purple Brown. oklch(40.5% 0.064 13.2), rgb(103, 58, 63).
Aa
White text reads best on this color (9.31:1).
About this color
#673A3F is a dark, muted red. In OKLCH its lightness is 41%, its chroma 0.064 and its hue 13°. Its hue sits on the warm side of the wheel. It is the named color Purple Brown. White text reads best on it, at 9.31:1.
| Hue family | Reds |
| Lightness | dark (41%) |
| Chroma | muted (0.064) |
| Temperature | warm |
| Nearest name | Purple Brown |
| Black text | 2.25:1 |
| White text | 9.31:1 |
Values
| HEX | #673A3F |
| RGB | rgb(103, 58, 63) |
| HSL | hsl(353, 28%, 32%) |
| OKLCH | oklch(40.5% 0.064 13.2) |
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 #673A3F | 9.31:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #673A3F | 2.25:1 | Fails | Lc 12.6 | Not readable |
| #673A3F text on white | 9.31:1 | AAA | Lc 91.3 | Preferred for body text |
| #673A3F text on black | 2.25:1 | Fails | Lc -11.0 | 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
#F9F4F4
oklch(97.1% 0.005 17.2)
-
Step 100
100
#F1E7E8
oklch(93.6% 0.011 10.3)
-
Step 200
200
#E6D4D5
oklch(88.5% 0.02 13.7)
-
Step 300
300
#D8B7BA
oklch(80.9% 0.038 11.8)
-
Step 400
400
#C39296
oklch(70.8% 0.06 13.2)
-
Step 500
500
#B3767C
oklch(63.1% 0.077 13.1)
-
Step 600
600
#9E5E65
oklch(55.6% 0.084 13.1)
-
Step 700
700
#874E54
oklch(49.2% 0.077 13.5)
-
Step 800
800 (this color)
#673A3F
oklch(40.5% 0.064 13.2)
-
Step 900
900
#59363A
oklch(37.6% 0.051 12.3)
-
Step 950
950
#342022
oklch(27% 0.031 12.8)
#673A3F 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) | #42423F | 0.070 |
| Deuteranopia (no green cones) | #4D4A3E | 0.064 |
| Tritanopia (no blue cones) | #6F353C | 0.018 |
| Achromatopsia (no color) | #474747 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673A3F
#673A3F
oklch(40.5% 0.064 13.2)
- #0F5453
#0F5453
oklch(40.6% 0.064 193.4)
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 #673A3F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.042
- Chestnut #742802 ΔE 0.069
- Charcoal Grey #3C4142 ΔE 0.078
- Mud Brown #60460F ΔE 0.080
- Red Brown #8B2E16 ΔE 0.082
- Rust Brown #8B3103 ΔE 0.088
- Wine Red #7B0323 ΔE 0.089
- Reddy Brown #6E1005 ΔE 0.091
Use #673A3F 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.