#644F44
Closest named color: Brownish Purple (#76424E). oklch(44.6% 0.033 49.1), rgb(100, 79, 68).
Aa
White text reads best on this color (7.65:1).
About this color
#644F44 is a dark, muted brown. In OKLCH its lightness is 45%, its chroma 0.033 and its hue 49°. Its hue sits on the warm side of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.054 away. White text reads best on it, at 7.65:1.
| Hue family | Browns |
| Lightness | dark (45%) |
| Chroma | muted (0.033) |
| Temperature | warm |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.74:1 |
| White text | 7.65:1 |
Values
| HEX | #644F44 |
| RGB | rgb(100, 79, 68) |
| HSL | hsl(21, 19%, 33%) |
| OKLCH | oklch(44.6% 0.033 49.1) |
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 #644F44 | 7.65:1 | AAA | Lc -91.3 | Preferred for body text |
| Black text on #644F44 | 2.74:1 | Fails | Lc 17.4 | Dividers and decoration only |
| #644F44 text on white | 7.65:1 | AAA | Lc 86.6 | Fine for body text |
| #644F44 text on black | 2.74:1 | Fails | Lc -15.5 | Dividers and decoration only |
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
#F7F5F4
oklch(97.1% 0.003 48.7)
-
Step 100
100
#EDE9E7
oklch(93.7% 0.005 48.7)
-
Step 200
200
#DFD7D3
oklch(88.4% 0.01 48.6)
-
Step 300
300
#CCBDB6
oklch(80.9% 0.02 46.8)
-
Step 400
400
#B29B90
oklch(70.7% 0.032 47.2)
-
Step 500
500
#9E8375
oklch(63.1% 0.039 49)
-
Step 600
600
#896C5D
oklch(55.6% 0.044 48.7)
-
Step 700
700
#745A4D
oklch(49% 0.04 47.9)
-
Step 800
800 (this color)
#644F44
oklch(44.6% 0.033 49.1)
-
Step 900
900
#4D3E36
oklch(37.7% 0.025 49.6)
-
Step 950
950
#2D241F
oklch(26.9% 0.016 50.7)
#644F44 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) | #555143 | 0.026 |
| Deuteranopia (no green cones) | #595544 | 0.025 |
| Tritanopia (no blue cones) | #6A4C4C | 0.021 |
| Achromatopsia (no color) | #535353 | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644F44
#644F44
oklch(44.6% 0.033 49.1)
- #415863
#415863
oklch(44.6% 0.033 228.9)
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 #644F44, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.054
- Purple Brown #673A3F ΔE 0.058
- Mud Brown #60460F ΔE 0.062
- Milk Chocolate #7F4E1E ΔE 0.063
- Medium Brown #7F5112 ΔE 0.072
- Olive Brown #645403 ΔE 0.072
- Dusty Grape #545775 ΔE 0.077
- Green Brown #544E03 ΔE 0.079
Use #644F44 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.