#644221
Closest named color: Mud Brown (#60460F). oklch(41.1% 0.067 63.2), rgb(100, 66, 33).
Aa
White text reads best on this color (8.96:1).
About this color
#644221 is a dark, muted brown. In OKLCH its lightness is 41%, its chroma 0.067 and its hue 63°. 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 8.96:1.
| Hue family | Browns |
| Lightness | dark (41%) |
| Chroma | muted (0.067) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.34:1 |
| White text | 8.96:1 |
Values
| HEX | #644221 |
| RGB | rgb(100, 66, 33) |
| HSL | hsl(30, 50%, 26%) |
| OKLCH | oklch(41.1% 0.067 63.2) |
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 #644221 | 8.96:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #644221 | 2.34:1 | Fails | Lc 13.6 | Not readable |
| #644221 text on white | 8.96:1 | AAA | Lc 90.4 | Preferred for body text |
| #644221 text on black | 2.34:1 | Fails | Lc -11.9 | 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
#D3BCA7
oklch(80.9% 0.039 64.6)
-
Step 400
400
#BD9978
oklch(70.8% 0.063 64.1)
-
Step 500
500
#AC7F55
oklch(63.1% 0.08 63.6)
-
Step 600
600
#97683A
oklch(55.7% 0.087 63.8)
-
Step 700
700
#81562C
oklch(49.1% 0.081 63.3)
-
Step 800
800 (this color)
#644221
oklch(41.1% 0.067 63.2)
-
Step 900
900
#553B23
oklch(37.6% 0.052 62.9)
-
Step 950
950
#322315
oklch(27% 0.033 63.7)
#644221 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) | #4D451E | 0.044 |
| Deuteranopia (no green cones) | #554C21 | 0.039 |
| Tritanopia (no blue cones) | #6D3A3A | 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°).
- #644221
#644221
oklch(41.1% 0.067 63.2)
- #274E6C
#274E6C
oklch(41% 0.067 243.7)
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 #644221, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.025
- Purple Brown #673A3F ΔE 0.056
- Green Brown #544E03 ΔE 0.057
- Olive Brown #645403 ΔE 0.063
- Chestnut #742802 ΔE 0.064
- Milk Chocolate #7F4E1E ΔE 0.065
- Medium Brown #7F5112 ΔE 0.072
- Brownish Purple #76424E ΔE 0.076
Use #644221 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.