#646344
Closest named color: Dark Moss Green (#606C38). oklch(49.2% 0.046 106.4), rgb(100, 99, 68).
Aa
White text reads best on this color (6.15:1).
About this color
#646344 is a medium-dark, muted brown. In OKLCH its lightness is 49%, its chroma 0.046 and its hue 106°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Moss Green (#606C38), ΔE 0.037 away. White text reads best on it, at 6.15:1.
| Hue family | Browns |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.046) |
| Temperature | warm |
| Nearest name | Dark Moss Green (#606C38) |
| Black text | 3.41:1 |
| White text | 6.15:1 |
Values
| HEX | #646344 |
| RGB | rgb(100, 99, 68) |
| HSL | hsl(58, 19%, 33%) |
| OKLCH | oklch(49.2% 0.046 106.4) |
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 #646344 | 6.15:1 | AA | Lc -85.9 | Fine for body text |
| Black text on #646344 | 3.41:1 | AA large text | Lc 23.3 | Dividers and decoration only |
| #646344 text on white | 6.15:1 | AA | Lc 80.7 | Fine for body text |
| #646344 text on black | 3.41:1 | 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
#F5F5F3
oklch(97% 0.003 106.4)
-
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
#C2C2B1
oklch(80.9% 0.023 106.9)
-
Step 400
400
#A3A289
oklch(70.6% 0.035 105.4)
-
Step 500
500
#8C8C6C
oklch(63.1% 0.046 107.6)
-
Step 600
600
#777653
oklch(55.7% 0.051 106.6)
-
Step 700
700 (this color)
#646344
oklch(49.2% 0.046 106.4)
-
Step 800
800
#515138
oklch(42.8% 0.039 107.9)
-
Step 900
900
#434330
oklch(37.7% 0.031 107.8)
-
Step 950
950
#27271C
oklch(26.9% 0.019 107.6)
#646344 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) | #686142 | 0.008 |
| Deuteranopia (no green cones) | #696245 | 0.009 |
| Tritanopia (no blue cones) | #695F5B | 0.042 |
| Achromatopsia (no color) | #616161 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #646344
#646344
oklch(49.2% 0.046 106.4)
- #5F5D7B
#5F5D7B
oklch(49.2% 0.048 287.6)
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 #646344, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Moss Green #606C38 ΔE 0.037
- Dark Olive Green #556B2F ΔE 0.049
- Mud #735C12 ΔE 0.050
- Dark Taupe #7F684E ΔE 0.050
- Camo Green #526525 ΔE 0.052
- Dirt Brown #836539 ΔE 0.053
- Greeny Brown #696006 ΔE 0.054
- Dim Gray #696969 ΔE 0.055
Use #646344 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.