#673D23
Closest named color: Mud Brown (#60460F). oklch(40.5% 0.071 51.3), rgb(103, 61, 35).
Aa
White text reads best on this color (9.25:1).
About this color
#673D23 is a dark, moderately saturated brown. In OKLCH its lightness is 40%, its chroma 0.071 and its hue 51°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.040 away. White text reads best on it, at 9.25:1.
| Hue family | Browns |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.071) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.26:1 |
| White text | 9.25:1 |
Values
| HEX | #673D23 |
| RGB | rgb(103, 61, 35) |
| HSL | hsl(23, 49%, 27%) |
| OKLCH | oklch(40.5% 0.071 51.3) |
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 #673D23 | 9.25:1 | AAA | Lc -95.5 | Preferred for body text |
| Black text on #673D23 | 2.26:1 | Fails | Lc 12.8 | Not readable |
| #673D23 text on white | 9.25:1 | AAA | Lc 91.1 | Preferred for body text |
| #673D23 text on black | 2.26:1 | Fails | Lc -11.2 | 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
#F1E8E3
oklch(93.7% 0.012 51.3)
-
Step 200
200
#E6D5CC
oklch(88.4% 0.023 49.9)
-
Step 300
300
#D7BAA9
oklch(80.9% 0.041 52.3)
-
Step 400
400
#C3957B
oklch(70.7% 0.067 50.8)
-
Step 500
500
#B37B59
oklch(63.2% 0.085 51.9)
-
Step 600
600
#9E633F
oklch(55.7% 0.092 51.3)
-
Step 700
700
#875231
oklch(49.2% 0.085 51.5)
-
Step 800
800 (this color)
#673D23
oklch(40.5% 0.071 51.3)
-
Step 900
900
#593926
oklch(37.7% 0.055 51.1)
-
Step 950
950
#342116
oklch(26.9% 0.035 50.8)
#673D23 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) | #494221 | 0.058 |
| Deuteranopia (no green cones) | #534B23 | 0.053 |
| Tritanopia (no blue cones) | #713537 | 0.045 |
| Achromatopsia (no color) | #474747 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673D23
#673D23
oklch(40.5% 0.071 51.3)
- #164F68
#164F68
oklch(40.4% 0.071 231.5)
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 #673D23, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.040
- Purple Brown #673A3F ΔE 0.045
- Chestnut #742802 ΔE 0.051
- Brownish Purple #76424E ΔE 0.069
- Milk Chocolate #7F4E1E ΔE 0.071
- Rust Brown #8B3103 ΔE 0.072
- Green Brown #544E03 ΔE 0.073
- Red Brown #8B2E16 ΔE 0.074
Use #673D23 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.