#673C08
Closest named color: Mud Brown (#60460F). oklch(40% 0.086 63.9), rgb(103, 60, 8).
Aa
White text reads best on this color (9.43:1).
About this color
#673C08 is a dark, moderately saturated brown. In OKLCH its lightness is 40%, its chroma 0.086 and its hue 64°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.029 away. White text reads best on it, at 9.43:1.
| Hue family | Browns |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.086) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.22:1 |
| White text | 9.43:1 |
Values
| HEX | #673C08 |
| RGB | rgb(103, 60, 8) |
| HSL | hsl(33, 86%, 22%) |
| OKLCH | oklch(40% 0.086 63.9) |
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 #673C08 | 9.43:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #673C08 | 2.22:1 | Fails | Lc 12.5 | Not readable |
| #673C08 text on white | 9.43:1 | AAA | Lc 91.5 | Preferred for body text |
| #673C08 text on black | 2.22:1 | Fails | Lc -10.9 | 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 900.
-
Step 50
50
#FAF4F0
oklch(97.1% 0.008 56.3)
-
Step 100
100
#F3E8DD
oklch(93.7% 0.019 67.6)
-
Step 200
200
#EBD5C1
oklch(88.6% 0.036 64.6)
-
Step 300
300
#DFB896
oklch(80.9% 0.064 62.8)
-
Step 400
400
#CD9259
oklch(70.6% 0.103 63.9)
-
Step 500
500
#C07620
oklch(63.2% 0.132 63.9)
-
Step 600
600
#A56000
oklch(55.5% 0.126 63.7)
-
Step 700
700
#8B5000
oklch(49% 0.111 63.7)
-
Step 800
800
#734100
oklch(42.7% 0.097 63.4)
-
Step 900
900 (this color)
#673C08
oklch(40% 0.086 63.9)
-
Step 950
950
#392005
oklch(27.1% 0.055 63.8)
#673C08 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) | #4A4000 | 0.058 |
| Deuteranopia (no green cones) | #544A09 | 0.052 |
| Tritanopia (no blue cones) | #713233 | 0.064 |
| Achromatopsia (no color) | #464646 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673C08
#673C08
oklch(40% 0.086 63.9)
- #144C72
#144C72
oklch(40.1% 0.085 243.4)
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 #673C08, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.029
- Chestnut #742802 ΔE 0.051
- Green Brown #544E03 ΔE 0.062
- Purple Brown #673A3F ΔE 0.067
- Olive Brown #645403 ΔE 0.069
- Milk Chocolate #7F4E1E ΔE 0.071
- Rust Brown #8B3103 ΔE 0.074
- Medium Brown #7F5112 ΔE 0.077
Use #673C08 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.