#644E1A
Closest named color: Mud Brown (#60460F). oklch(43.6% 0.074 85.5), rgb(100, 78, 26).
Aa
White text reads best on this color (7.93:1).
About this color
#644E1A is a dark, moderately saturated brown. In OKLCH its lightness is 44%, its chroma 0.074 and its hue 85°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.025 away. White text reads best on it, at 7.93:1.
| Hue family | Browns |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.074) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.64:1 |
| White text | 7.93:1 |
Values
| HEX | #644E1A |
| RGB | rgb(100, 78, 26) |
| HSL | hsl(42, 59%, 25%) |
| OKLCH | oklch(43.6% 0.074 85.5) |
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 #644E1A | 7.93:1 | AAA | Lc -92.1 | Preferred for body text |
| Black text on #644E1A | 2.64:1 | Fails | Lc 16.6 | Dividers and decoration only |
| #644E1A text on white | 7.93:1 | AAA | Lc 87.4 | Fine for body text |
| #644E1A text on black | 2.64:1 | Fails | Lc -14.7 | 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
#F7F5F1
oklch(97.1% 0.006 84.6)
-
Step 100
100
#EEE9E1
oklch(93.6% 0.012 79.8)
-
Step 200
200
#E0D8C8
oklch(88.4% 0.023 84.6)
-
Step 300
300
#CDBFA1
oklch(80.8% 0.044 85.9)
-
Step 400
400
#B49E6E
oklch(70.7% 0.07 86)
-
Step 500
500
#A28546
oklch(63% 0.089 85)
-
Step 600
600
#8D6E26
oklch(55.5% 0.096 84.9)
-
Step 700
700
#785C18
oklch(49.1% 0.09 85)
-
Step 800
800 (this color)
#644E1A
oklch(43.6% 0.074 85.5)
-
Step 900
900
#503F1A
oklch(37.7% 0.058 84.6)
-
Step 950
950
#2F2510
oklch(27% 0.037 84.4)
#644E1A 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) | #584E13 | 0.023 |
| Deuteranopia (no green cones) | #5D531C | 0.018 |
| Tritanopia (no blue cones) | #6D4743 | 0.066 |
| Achromatopsia (no color) | #515151 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644E1A
#644E1A
oklch(43.6% 0.074 85.5)
- #3E507B
#3E507B
oklch(43.6% 0.075 266.1)
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 #644E1A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.025
- Olive Brown #645403 ΔE 0.026
- Green Brown #544E03 ΔE 0.035
- Milk Chocolate #7F4E1E ΔE 0.051
- Medium Brown #7F5112 ΔE 0.051
- Mud #735C12 ΔE 0.052
- Greeny Brown #696006 ΔE 0.059
- Army Green #4B5D16 ΔE 0.060
Use #644E1A 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.