#673D0B
Closest named color: Mud Brown (#60460F). oklch(40.2% 0.084 64.3), rgb(103, 61, 11).
Aa
White text reads best on this color (9.33:1).
About this color
#673D0B is a dark, moderately saturated brown. In OKLCH its lightness is 40%, its chroma 0.084 and its hue 64°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.027 away. White text reads best on it, at 9.33:1.
| Hue family | Browns |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.084) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.24:1 |
| White text | 9.33:1 |
Values
| HEX | #673D0B |
| RGB | rgb(103, 61, 11) |
| HSL | hsl(33, 81%, 22%) |
| OKLCH | oklch(40.2% 0.084 64.3) |
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 #673D0B | 9.33:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #673D0B | 2.24:1 | Fails | Lc 12.7 | Not readable |
| #673D0B text on white | 9.33:1 | AAA | Lc 91.3 | Preferred for body text |
| #673D0B text on black | 2.24:1 | 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
#F9F5F1
oklch(97.2% 0.007 67.7)
-
Step 100
100
#F1E8E0
oklch(93.6% 0.015 64.3)
-
Step 200
200
#E6D6C7
oklch(88.5% 0.027 65.6)
-
Step 300
300
#D8BBA0
oklch(81% 0.05 65)
-
Step 400
400
#C3966C
oklch(70.6% 0.078 64)
-
Step 500
500
#B47C44
oklch(63.2% 0.101 64.2)
-
Step 600
600
#9F6422
oklch(55.6% 0.109 64.4)
-
Step 700
700
#885314
oklch(49.2% 0.102 64.7)
-
Step 800
800 (this color)
#673D0B
oklch(40.2% 0.084 64.3)
-
Step 900
900
#5A3918
oklch(37.7% 0.066 63.2)
-
Step 950
950
#35220F
oklch(27.1% 0.042 64.3)
#673D0B 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) | #4A4102 | 0.058 |
| Deuteranopia (no green cones) | #544B0C | 0.052 |
| Tritanopia (no blue cones) | #713334 | 0.064 |
| Achromatopsia (no color) | #474747 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673D0B
#673D0B
oklch(40.2% 0.084 64.3)
- #174C72
#174C72
oklch(40.2% 0.084 244.2)
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 #673D0B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.027
- Chestnut #742802 ΔE 0.052
- Green Brown #544E03 ΔE 0.060
- Purple Brown #673A3F ΔE 0.067
- Olive Brown #645403 ΔE 0.067
- Milk Chocolate #7F4E1E ΔE 0.069
- Rust Brown #8B3103 ΔE 0.074
- Medium Brown #7F5112 ΔE 0.075
Use #673D0B 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.