#673F34
Closest named color: Purple Brown (#673A3F). oklch(41.2% 0.059 36.1), rgb(103, 63, 52).
Aa
White text reads best on this color (8.98:1).
About this color
#673F34 is a dark, muted red. In OKLCH its lightness is 41%, its chroma 0.059 and its hue 36°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.026 away. White text reads best on it, at 8.98:1.
| Hue family | Reds |
| Lightness | dark (41%) |
| Chroma | muted (0.059) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.33:1 |
| White text | 8.98:1 |
Values
| HEX | #673F34 |
| RGB | rgb(103, 63, 52) |
| HSL | hsl(13, 33%, 30%) |
| OKLCH | oklch(41.2% 0.059 36.1) |
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 #673F34 | 8.98:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #673F34 | 2.33:1 | Fails | Lc 13.5 | Not readable |
| #673F34 text on white | 8.98:1 | AAA | Lc 90.5 | Preferred for body text |
| #673F34 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
#F8F4F3
oklch(97% 0.005 34.3)
-
Step 100
100
#F0E8E5
oklch(93.6% 0.01 41.9)
-
Step 200
200
#E5D5D0
oklch(88.5% 0.019 38.1)
-
Step 300
300
#D6B9B1
oklch(80.8% 0.035 35.9)
-
Step 400
400
#C09589
oklch(70.7% 0.055 36.1)
-
Step 500
500
#B07A6C
oklch(63.1% 0.071 35.1)
-
Step 600
600
#9B6353
oklch(55.7% 0.077 36.7)
-
Step 700
700
#845244
oklch(49.2% 0.071 36.4)
-
Step 800
800 (this color)
#673F34
oklch(41.2% 0.059 36.1)
-
Step 900
900
#573930
oklch(37.7% 0.046 37.4)
-
Step 950
950
#33211C
oklch(26.9% 0.03 36.2)
#673F34 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) | #494433 | 0.056 |
| Deuteranopia (no green cones) | #524C34 | 0.052 |
| Tritanopia (no blue cones) | #6F393C | 0.028 |
| Achromatopsia (no color) | #494949 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673F34
#673F34
oklch(41.2% 0.059 36.1)
- #1D5360
#1D5360
oklch(41.3% 0.06 216.6)
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 #673F34, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.026
- Brownish Purple #76424E ΔE 0.050
- Mud Brown #60460F ΔE 0.055
- Chestnut #742802 ΔE 0.062
- Milk Chocolate #7F4E1E ΔE 0.074
- Red Brown #8B2E16 ΔE 0.076
- Charcoal Grey #3C4142 ΔE 0.078
- Rust Brown #8B3103 ΔE 0.078
Use #673F34 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.