#644100
Closest named color: Mud Brown (#60460F). oklch(40.6% 0.086 74.5), rgb(100, 65, 0).
Aa
White text reads best on this color (9.13:1).
About this color
#644100 is a dark, moderately saturated brown. In OKLCH its lightness is 41%, its chroma 0.086 and its hue 75°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.015 away. White text reads best on it, at 9.13:1.
| Hue family | Browns |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.086) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.29:1 |
| White text | 9.13:1 |
Values
| HEX | #644100 |
| RGB | rgb(100, 65, 0) |
| HSL | hsl(39, 100%, 20%) |
| OKLCH | oklch(40.6% 0.086 74.5) |
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 #644100 | 9.13:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #644100 | 2.29:1 | Fails | Lc 13.2 | Not readable |
| #644100 text on white | 9.13:1 | AAA | Lc 90.8 | Preferred for body text |
| #644100 text on black | 2.29:1 | Fails | Lc -11.5 | 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
#F0E9DF
oklch(93.7% 0.015 77.1)
-
Step 200
200
#E4D7C5
oklch(88.5% 0.028 76.2)
-
Step 300
300
#D4BD9D
oklch(81% 0.051 76)
-
Step 400
400
#BE9A67
oklch(70.8% 0.08 75.5)
-
Step 500
500
#AE803B
oklch(63.2% 0.103 74.9)
-
Step 600
600
#996813
oklch(55.6% 0.111 74.5)
-
Step 700
700
#835601
oklch(49.1% 0.104 73.9)
-
Step 800
800 (this color)
#644100
oklch(40.6% 0.086 74.5)
-
Step 900
900
#563C13
oklch(37.7% 0.067 75.2)
-
Step 950
950
#33230D
oklch(27% 0.042 73)
#644100 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) | #4D4300 | 0.044 |
| Deuteranopia (no green cones) | #564B03 | 0.037 |
| Tritanopia (no blue cones) | #6E3836 | 0.071 |
| Achromatopsia (no color) | #484848 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644100
#644100
oklch(40.6% 0.086 74.5)
- #264A76
#264A76
oklch(40.5% 0.085 254.6)
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 #644100, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.015
- Green Brown #544E03 ΔE 0.046
- Olive Brown #645403 ΔE 0.055
- Chestnut #742802 ΔE 0.067
- Milk Chocolate #7F4E1E ΔE 0.069
- Medium Brown #7F5112 ΔE 0.072
- Purple Brown #673A3F ΔE 0.079
- Saddle Brown #8B4513 ΔE 0.081
Use #644100 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.