#66450D
Closest named color: Mud Brown (#60460F). oklch(41.8% 0.081 74.9), rgb(102, 69, 13).
Aa
White text reads best on this color (8.67:1).
About this color
#66450D is a dark, moderately saturated brown. In OKLCH its lightness is 42%, its chroma 0.081 and its hue 75°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.011 away. White text reads best on it, at 8.67:1.
| Hue family | Browns |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.081) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.42:1 |
| White text | 8.67:1 |
Values
| HEX | #66450D |
| RGB | rgb(102, 69, 13) |
| HSL | hsl(38, 77%, 23%) |
| OKLCH | oklch(41.8% 0.081 74.9) |
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 #66450D | 8.67:1 | AAA | Lc -94.1 | Preferred for body text |
| Black text on #66450D | 2.42:1 | Fails | Lc 14.4 | Not readable |
| #66450D text on white | 8.67:1 | AAA | Lc 89.5 | Fine for body text |
| #66450D text on black | 2.42:1 | Fails | Lc -12.7 | 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
#E4D7C6
oklch(88.5% 0.027 74.7)
-
Step 300
300
#D3BD9F
oklch(80.9% 0.048 75.5)
-
Step 400
400
#BD9A6A
oklch(70.7% 0.077 74.8)
-
Step 500
500
#AC8041
oklch(63% 0.097 74.2)
-
Step 600
600
#97691D
oklch(55.6% 0.106 74.9)
-
Step 700
700
#81570E
oklch(49.1% 0.098 74.5)
-
Step 800
800 (this color)
#66450D
oklch(41.8% 0.081 74.9)
-
Step 900
900
#553C16
oklch(37.6% 0.064 74.9)
-
Step 950
950
#32230E
oklch(26.9% 0.041 73.8)
#66450D 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) | #514703 | 0.041 |
| Deuteranopia (no green cones) | #594F0F | 0.036 |
| Tritanopia (no blue cones) | #703C3A | 0.068 |
| Achromatopsia (no color) | #4B4B4B | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66450D
#66450D
oklch(41.8% 0.081 74.9)
- #2C4E78
#2C4E78
oklch(41.9% 0.081 254.6)
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 #66450D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.011
- Green Brown #544E03 ΔE 0.043
- Olive Brown #645403 ΔE 0.045
- Milk Chocolate #7F4E1E ΔE 0.058
- Medium Brown #7F5112 ΔE 0.061
- Mud #735C12 ΔE 0.072
- Chestnut #742802 ΔE 0.072
- Saddle Brown #8B4513 ΔE 0.073
Use #66450D 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.