#673E31
Closest named color: Purple Brown (#673A3F). oklch(40.9% 0.062 38.4), rgb(103, 62, 49).
Aa
White text reads best on this color (9.09:1).
About this color
#673E31 is a dark, muted red. In OKLCH its lightness is 41%, its chroma 0.062 and its hue 38°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.028 away. White text reads best on it, at 9.09:1.
| Hue family | Reds |
| Lightness | dark (41%) |
| Chroma | muted (0.062) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.31:1 |
| White text | 9.09:1 |
Values
| HEX | #673E31 |
| RGB | rgb(103, 62, 49) |
| HSL | hsl(14, 36%, 30%) |
| OKLCH | oklch(40.9% 0.062 38.4) |
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 #673E31 | 9.09:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #673E31 | 2.31:1 | Fails | Lc 13.2 | Not readable |
| #673E31 text on white | 9.09:1 | AAA | Lc 90.7 | Preferred for body text |
| #673E31 text on black | 2.31:1 | Fails | Lc -11.6 | 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
#F9F4F3
oklch(97.1% 0.006 31.1)
-
Step 100
100
#F1E8E5
oklch(93.7% 0.011 39.4)
-
Step 200
200
#E6D5D0
oklch(88.5% 0.02 37)
-
Step 300
300
#D6B9B0
oklch(80.8% 0.036 38)
-
Step 400
400
#C19587
oklch(70.7% 0.057 38.4)
-
Step 500
500
#B17A69
oklch(63.1% 0.074 37.9)
-
Step 600
600
#9C6250
oklch(55.5% 0.081 38)
-
Step 700
700
#855141
oklch(49% 0.075 37.9)
-
Step 800
800 (this color)
#673E31
oklch(40.9% 0.062 38.4)
-
Step 900
900
#58392F
oklch(37.8% 0.048 38.6)
-
Step 950
950
#34211B
oklch(27% 0.032 38.3)
#673E31 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) | #484330 | 0.058 |
| Deuteranopia (no green cones) | #524C31 | 0.054 |
| Tritanopia (no blue cones) | #70373B | 0.032 |
| Achromatopsia (no color) | #484848 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673E31
#673E31
oklch(40.9% 0.062 38.4)
- #1A5261
#1A5261
oklch(40.9% 0.062 219.1)
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 #673E31, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.028
- Mud Brown #60460F ΔE 0.053
- Brownish Purple #76424E ΔE 0.054
- Chestnut #742802 ΔE 0.059
- Milk Chocolate #7F4E1E ΔE 0.074
- Red Brown #8B2E16 ΔE 0.075
- Rust Brown #8B3103 ΔE 0.077
- Charcoal Grey #3C4142 ΔE 0.079
Use #673E31 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.