#664010
Closest named color: Mud Brown (#60460F). oklch(40.7% 0.08 67.4), rgb(102, 64, 16).
Aa
White text reads best on this color (9.10:1).
About this color
#664010 is a dark, moderately saturated brown. In OKLCH its lightness is 41%, its chroma 0.080 and its hue 67°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.020 away. White text reads best on it, at 9.10:1.
| Hue family | Browns |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.080) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.30:1 |
| White text | 9.10:1 |
Values
| HEX | #664010 |
| RGB | rgb(102, 64, 16) |
| HSL | hsl(33, 73%, 23%) |
| OKLCH | oklch(40.7% 0.08 67.4) |
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 #664010 | 9.10:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #664010 | 2.30:1 | Fails | Lc 13.2 | Not readable |
| #664010 text on white | 9.10:1 | AAA | Lc 90.7 | Preferred for body text |
| #664010 text on black | 2.30:1 | Fails | Lc -11.6 | 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
#F0E8E1
oklch(93.5% 0.013 63.9)
-
Step 200
200
#E5D6C7
oklch(88.4% 0.026 67.5)
-
Step 300
300
#D6BBA1
oklch(80.8% 0.047 66)
-
Step 400
400
#C0986E
oklch(70.7% 0.074 67.5)
-
Step 500
500
#B07E46
oklch(63.1% 0.096 67.7)
-
Step 600
600
#9B6626
oklch(55.5% 0.104 67.3)
-
Step 700
700
#855518
oklch(49.2% 0.097 67.5)
-
Step 800
800 (this color)
#664010
oklch(40.7% 0.08 67.4)
-
Step 900
900
#583B1A
oklch(37.8% 0.063 67.4)
-
Step 950
950
#332310
oklch(27.1% 0.039 69.6)
#664010 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) | #4C4308 | 0.051 |
| Deuteranopia (no green cones) | #554C11 | 0.045 |
| Tritanopia (no blue cones) | #703737 | 0.063 |
| Achromatopsia (no color) | #484848 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #664010
#664010
oklch(40.7% 0.08 67.4)
- #214D73
#214D73
oklch(40.8% 0.08 247.4)
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 #664010, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.020
- Green Brown #544E03 ΔE 0.054
- Chestnut #742802 ΔE 0.059
- Olive Brown #645403 ΔE 0.060
- Milk Chocolate #7F4E1E ΔE 0.065
- Purple Brown #673A3F ΔE 0.067
- Medium Brown #7F5112 ΔE 0.071
- Saddle Brown #8B4513 ΔE 0.076
Use #664010 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.