#644010
Closest named color: Mud Brown (#60460F). oklch(40.4% 0.079 69), rgb(100, 64, 16).
Aa
White text reads best on this color (9.19:1).
About this color
#644010 is a dark, moderately saturated brown. In OKLCH its lightness is 40%, its chroma 0.079 and its hue 69°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.019 away. White text reads best on it, at 9.19:1.
| Hue family | Browns |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.079) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.28:1 |
| White text | 9.19:1 |
Values
| HEX | #644010 |
| RGB | rgb(100, 64, 16) |
| HSL | hsl(34, 72%, 23%) |
| OKLCH | oklch(40.4% 0.079 69) |
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 #644010 | 9.19:1 | AAA | Lc -95.4 | Preferred for body text |
| Black text on #644010 | 2.28:1 | Fails | Lc 13.0 | Not readable |
| #644010 text on white | 9.19:1 | AAA | Lc 91.0 | Preferred for body text |
| #644010 text on black | 2.28:1 | Fails | Lc -11.3 | 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
#E5D7C8
oklch(88.6% 0.026 69.4)
-
Step 300
300
#D5BCA1
oklch(80.9% 0.047 69.3)
-
Step 400
400
#BF996E
oklch(70.8% 0.074 69.6)
-
Step 500
500
#AE7F47
oklch(63.1% 0.093 69.6)
-
Step 600
600
#9A6727
oklch(55.6% 0.102 68.6)
-
Step 700
700
#835519
oklch(49% 0.095 68.6)
-
Step 800
800 (this color)
#644010
oklch(40.4% 0.079 69)
-
Step 900
900
#573B1A
oklch(37.7% 0.062 68.4)
-
Step 950
950
#332310
oklch(27.1% 0.039 69.6)
#644010 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 | 0.047 |
| Deuteranopia (no green cones) | #554B11 | 0.041 |
| Tritanopia (no blue cones) | #6E3737 | 0.064 |
| Achromatopsia (no color) | #484848 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644010
#644010
oklch(40.4% 0.079 69)
- #234B71
#234B71
oklch(40.3% 0.079 249.3)
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 #644010, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.019
- Green Brown #544E03 ΔE 0.052
- Olive Brown #645403 ΔE 0.061
- Chestnut #742802 ΔE 0.061
- Purple Brown #673A3F ΔE 0.068
- Milk Chocolate #7F4E1E ΔE 0.069
- Medium Brown #7F5112 ΔE 0.074
- Saddle Brown #8B4513 ΔE 0.080
Use #644010 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.