#664405
Closest named color: Mud Brown (#60460F). oklch(41.5% 0.085 75.4), rgb(102, 68, 5).
Aa
White text reads best on this color (8.77:1).
About this color
#664405 is a dark, moderately saturated brown. In OKLCH its lightness is 41%, its chroma 0.085 and its hue 75°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.012 away. White text reads best on it, at 8.77:1.
| Hue family | Browns |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.085) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.39:1 |
| White text | 8.77:1 |
Values
| HEX | #664405 |
| RGB | rgb(102, 68, 5) |
| HSL | hsl(39, 91%, 21%) |
| OKLCH | oklch(41.5% 0.085 75.4) |
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 #664405 | 8.77:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #664405 | 2.39:1 | Fails | Lc 14.2 | Not readable |
| #664405 text on white | 8.77:1 | AAA | Lc 89.8 | Fine for body text |
| #664405 text on black | 2.39:1 | Fails | Lc -12.5 | 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
#F0E9E0
oklch(93.7% 0.014 74.4)
-
Step 200
200
#E4D7C6
oklch(88.5% 0.027 74.7)
-
Step 300
300
#D4BD9E
oklch(81% 0.049 75.2)
-
Step 400
400
#BE9A68
oklch(70.8% 0.079 75)
-
Step 500
500
#AD803C
oklch(63.1% 0.102 75.3)
-
Step 600
600
#986915
oklch(55.6% 0.11 75.7)
-
Step 700
700
#825703
oklch(49.1% 0.102 75.3)
-
Step 800
800 (this color)
#664405
oklch(41.5% 0.085 75.4)
-
Step 900
900
#563C13
oklch(37.7% 0.067 75.2)
-
Step 950
950
#32230D
oklch(26.9% 0.042 74.9)
#664405 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) | #504600 | 0.042 |
| Deuteranopia (no green cones) | #584E08 | 0.037 |
| Tritanopia (no blue cones) | #703B39 | 0.071 |
| Achromatopsia (no color) | #4B4B4B | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #664405
#664405
oklch(41.5% 0.085 75.4)
- #2A4D79
#2A4D79
oklch(41.6% 0.085 255)
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 #664405, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.012
- Green Brown #544E03 ΔE 0.043
- Olive Brown #645403 ΔE 0.046
- Milk Chocolate #7F4E1E ΔE 0.060
- Medium Brown #7F5112 ΔE 0.063
- Chestnut #742802 ΔE 0.071
- Mud #735C12 ΔE 0.074
- Saddle Brown #8B4513 ΔE 0.075
Use #664405 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.