#644121
Closest named color: Mud Brown (#60460F). oklch(40.8% 0.067 61.5), rgb(100, 65, 33).
Aa
White text reads best on this color (9.05:1).
About this color
#644121 is a dark, muted brown. In OKLCH its lightness is 41%, its chroma 0.067 and its hue 62°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.027 away. White text reads best on it, at 9.05:1.
| Hue family | Browns |
| Lightness | dark (41%) |
| Chroma | muted (0.067) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.31:1 |
| White text | 9.05:1 |
Values
| HEX | #644121 |
| RGB | rgb(100, 65, 33) |
| HSL | hsl(29, 50%, 26%) |
| OKLCH | oklch(40.8% 0.067 61.5) |
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 #644121 | 9.05:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #644121 | 2.31:1 | Fails | Lc 13.3 | Not readable |
| #644121 text on white | 9.05:1 | AAA | Lc 90.6 | Preferred for body text |
| #644121 text on black | 2.31:1 | Fails | Lc -11.7 | 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
#F8F5F2
oklch(97.2% 0.005 67.8)
-
Step 100
100
#F0E8E2
oklch(93.6% 0.012 59.6)
-
Step 200
200
#E4D6CB
oklch(88.4% 0.022 60.7)
-
Step 300
300
#D4BBA7
oklch(80.8% 0.04 60.9)
-
Step 400
400
#BE9879
oklch(70.7% 0.063 60.7)
-
Step 500
500
#AD7E56
oklch(63.1% 0.08 61)
-
Step 600
600
#98673B
oklch(55.6% 0.087 61.4)
-
Step 700
700
#82552D
oklch(49.1% 0.081 60.7)
-
Step 800
800 (this color)
#644121
oklch(40.8% 0.067 61.5)
-
Step 900
900
#563B24
oklch(37.7% 0.052 60.7)
-
Step 950
950
#322315
oklch(27% 0.033 63.7)
#644121 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) | #4C441E | 0.046 |
| Deuteranopia (no green cones) | #544C21 | 0.042 |
| Tritanopia (no blue cones) | #6D393A | 0.051 |
| Achromatopsia (no color) | #494949 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644121
#644121
oklch(40.8% 0.067 61.5)
- #254E6B
#254E6B
oklch(40.8% 0.067 241.8)
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 #644121, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.027
- Purple Brown #673A3F ΔE 0.054
- Green Brown #544E03 ΔE 0.060
- Chestnut #742802 ΔE 0.061
- Olive Brown #645403 ΔE 0.066
- Milk Chocolate #7F4E1E ΔE 0.067
- Medium Brown #7F5112 ΔE 0.074
- Brownish Purple #76424E ΔE 0.076
Use #644121 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.