#646340
Closest named color: Dark Moss Green (#606C38). oklch(49.1% 0.052 106.8), rgb(100, 99, 64).
Aa
White text reads best on this color (6.17:1).
About this color
#646340 is a medium-dark, muted brown. In OKLCH its lightness is 49%, its chroma 0.052 and its hue 107°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Moss Green (#606C38), ΔE 0.033 away. White text reads best on it, at 6.17:1.
| Hue family | Browns |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.052) |
| Temperature | warm |
| Nearest name | Dark Moss Green (#606C38) |
| Black text | 3.40:1 |
| White text | 6.17:1 |
Values
| HEX | #646340 |
| RGB | rgb(100, 99, 64) |
| HSL | hsl(58, 22%, 32%) |
| OKLCH | oklch(49.1% 0.052 106.8) |
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 #646340 | 6.17:1 | AA | Lc -86.0 | Fine for body text |
| Black text on #646340 | 3.40:1 | AA large text | Lc 23.3 | Dividers and decoration only |
| #646340 text on white | 6.17:1 | AA | Lc 80.8 | Fine for body text |
| #646340 text on black | 3.40:1 | AA large text | Lc -21.1 | 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 700.
-
Step 50
50
#F6F6F3
oklch(97.2% 0.004 106.5)
-
Step 100
100
#EAEAE5
oklch(93.6% 0.007 106.5)
-
Step 200
200
#DADAD0
oklch(88.6% 0.013 106.7)
-
Step 300
300
#C2C2B0
oklch(80.9% 0.025 106.9)
-
Step 400
400
#A3A386
oklch(70.8% 0.041 107.4)
-
Step 500
500
#8D8C68
oklch(63.1% 0.051 106.4)
-
Step 600
600
#77764F
oklch(55.7% 0.056 106.8)
-
Step 700
700 (this color)
#646340
oklch(49.1% 0.052 106.8)
-
Step 800
800
#525135
oklch(42.8% 0.043 106.3)
-
Step 900
900
#43432E
oklch(37.7% 0.034 107.9)
-
Step 950
950
#27271B
oklch(26.9% 0.021 107.7)
#646340 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) | #69603E | 0.011 |
| Deuteranopia (no green cones) | #696241 | 0.009 |
| Tritanopia (no blue cones) | #695F5A | 0.046 |
| Achromatopsia (no color) | #616161 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #646340
#646340
oklch(49.1% 0.052 106.8)
- #5E5D7D
#5E5D7D
oklch(49.2% 0.051 285.8)
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 #646340, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Moss Green #606C38 ΔE 0.033
- Dark Olive Green #556B2F ΔE 0.044
- Mud #735C12 ΔE 0.045
- Camo Green #526525 ΔE 0.048
- Greeny Brown #696006 ΔE 0.048
- Dark Taupe #7F684E ΔE 0.052
- Dirt Brown #836539 ΔE 0.052
- Mud Green #606602 ΔE 0.058
Use #646340 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.