#66490D
Closest named color: Mud Brown (#60460F). oklch(42.6% 0.082 80.2), rgb(102, 73, 13).
Aa
White text reads best on this color (8.32:1).
About this color
#66490D is a dark, moderately saturated brown. In OKLCH its lightness is 43%, its chroma 0.082 and its hue 80°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.015 away. White text reads best on it, at 8.32:1.
| Hue family | Browns |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.082) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.52:1 |
| White text | 8.32:1 |
Values
| HEX | #66490D |
| RGB | rgb(102, 73, 13) |
| HSL | hsl(40, 77%, 23%) |
| OKLCH | oklch(42.6% 0.082 80.2) |
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 #66490D | 8.32:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #66490D | 2.52:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #66490D text on white | 8.32:1 | AAA | Lc 88.5 | Fine for body text |
| #66490D text on black | 2.52:1 | Fails | Lc -13.6 | 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
#F8F5F1
oklch(97.1% 0.006 75.4)
-
Step 100
100
#EFE9E0
oklch(93.6% 0.014 78.3)
-
Step 200
200
#E2D8C6
oklch(88.5% 0.027 82.4)
-
Step 300
300
#D1BE9E
oklch(80.9% 0.048 80.7)
-
Step 400
400
#BA9C69
oklch(70.8% 0.077 80.3)
-
Step 500
500
#A8833E
oklch(63.2% 0.098 80.9)
-
Step 600
600
#946B18
oklch(55.6% 0.107 79.6)
-
Step 700
700
#7E5907
oklch(49.1% 0.099 79.7)
-
Step 800
800 (this color)
#66490D
oklch(42.6% 0.082 80.2)
-
Step 900
900
#533D15
oklch(37.6% 0.063 79.5)
-
Step 950
950
#31240E
oklch(27% 0.04 78.9)
#66490D 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) | #544A02 | 0.035 |
| Deuteranopia (no green cones) | #5B5110 | 0.029 |
| Tritanopia (no blue cones) | #70413E | 0.071 |
| Achromatopsia (no color) | #4E4E4E | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66490D
#66490D
oklch(42.6% 0.082 80.2)
- #344F7B
#344F7B
oklch(42.7% 0.081 259.8)
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 #66490D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.015
- Olive Brown #645403 ΔE 0.034
- Green Brown #544E03 ΔE 0.037
- Milk Chocolate #7F4E1E ΔE 0.053
- Medium Brown #7F5112 ΔE 0.055
- Mud #735C12 ΔE 0.061
- Greeny Brown #696006 ΔE 0.069
- Army Green #4B5D16 ΔE 0.070
Use #66490D 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.