#673C28
Closest named color: Purple Brown (#673A3F). oklch(40.4% 0.068 45.2), rgb(103, 60, 40).
Aa
White text reads best on this color (9.31:1).
About this color
#673C28 is a dark, muted brown. In OKLCH its lightness is 40%, its chroma 0.068 and its hue 45°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.037 away. White text reads best on it, at 9.31:1.
| Hue family | Browns |
| Lightness | dark (40%) |
| Chroma | muted (0.068) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.25:1 |
| White text | 9.31:1 |
Values
| HEX | #673C28 |
| RGB | rgb(103, 60, 40) |
| HSL | hsl(19, 44%, 28%) |
| OKLCH | oklch(40.4% 0.068 45.2) |
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 #673C28 | 9.31:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #673C28 | 2.25:1 | Fails | Lc 12.7 | Not readable |
| #673C28 text on white | 9.31:1 | AAA | Lc 91.3 | Preferred for body text |
| #673C28 text on black | 2.25:1 | Fails | Lc -11.1 | 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
#F9F4F2
oklch(97% 0.006 43.3)
-
Step 100
100
#F1E8E4
oklch(93.7% 0.011 45.7)
-
Step 200
200
#E7D5CD
oklch(88.5% 0.023 45.6)
-
Step 300
300
#D8B9AC
oklch(80.9% 0.04 44.1)
-
Step 400
400
#C39580
oklch(70.8% 0.063 45.7)
-
Step 500
500
#B37A5F
oklch(63.1% 0.082 46.1)
-
Step 600
600
#9E6246
oklch(55.6% 0.088 45.5)
-
Step 700
700
#875137
oklch(49.1% 0.082 46)
-
Step 800
800 (this color)
#673C28
oklch(40.4% 0.068 45.2)
-
Step 900
900
#593829
oklch(37.6% 0.053 45.1)
-
Step 950
950
#342118
oklch(26.9% 0.034 46.2)
#673C28 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) | #474126 | 0.061 |
| Deuteranopia (no green cones) | #524A28 | 0.054 |
| Tritanopia (no blue cones) | #703437 | 0.039 |
| Achromatopsia (no color) | #474747 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673C28
#673C28
oklch(40.4% 0.068 45.2)
- #135064
#135064
oklch(40.3% 0.068 224.8)
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 #673C28, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.037
- Mud Brown #60460F ΔE 0.047
- Chestnut #742802 ΔE 0.051
- Brownish Purple #76424E ΔE 0.064
- Red Brown #8B2E16 ΔE 0.073
- Rust Brown #8B3103 ΔE 0.073
- Milk Chocolate #7F4E1E ΔE 0.074
- Green Brown #544E03 ΔE 0.079
Use #673C28 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.