#646C36
Closest named color: Dark Moss Green (#606C38). oklch(51.1% 0.077 116.1), rgb(100, 108, 54).
Aa
White text reads best on this color (5.61:1).
About this color
#646C36 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 51%, its chroma 0.077 and its hue 116°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Moss Green (#606C38), ΔE 0.006 away. White text reads best on it, at 5.61:1.
| Hue family | Yellows |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.077) |
| Temperature | in between |
| Nearest name | Dark Moss Green (#606C38) |
| Black text | 3.74:1 |
| White text | 5.61:1 |
Values
| HEX | #646C36 |
| RGB | rgb(100, 108, 54) |
| HSL | hsl(69, 33%, 32%) |
| OKLCH | oklch(51.1% 0.077 116.1) |
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 #646C36 | 5.61:1 | AA | Lc -83.3 | Fine for body text |
| Black text on #646C36 | 3.74:1 | AA large text | Lc 26.0 | Dividers and decoration only |
| #646C36 text on white | 5.61:1 | AA | Lc 78.0 | Fine for body text |
| #646C36 text on black | 3.74:1 | AA large text | Lc -23.7 | 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
#F5F6F2
oklch(97.1% 0.005 117.9)
-
Step 100
100
#E9EBE3
oklch(93.6% 0.011 118)
-
Step 200
200
#D8DBCC
oklch(88.5% 0.02 116)
-
Step 300
300
#BFC4A9
oklch(80.9% 0.037 115.8)
-
Step 400
400
#9EA67B
oklch(70.8% 0.06 116.5)
-
Step 500
500
#879059
oklch(63.2% 0.077 116.2)
-
Step 600
600
#71793E
oklch(55.5% 0.083 115.5)
-
Step 700
700 (this color)
#646C36
oklch(51.1% 0.077 116.1)
-
Step 800
800
#4D5329
oklch(42.6% 0.063 115.8)
-
Step 900
900
#404525
oklch(37.7% 0.05 116.1)
-
Step 950
950
#252816
oklch(26.8% 0.031 116.3)
#646C36 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) | #726731 | 0.024 |
| Deuteranopia (no green cones) | #726839 | 0.026 |
| Tritanopia (no blue cones) | #69675F | 0.066 |
| Achromatopsia (no color) | #676767 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #646C36
#646C36
oklch(51.1% 0.077 116.1)
- #6A5D8E
#6A5D8E
oklch(51.1% 0.078 295.7)
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 #646C36, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Moss Green #606C38 ΔE 0.006
- Dark Olive Green #556B2F ΔE 0.025
- Muddy Green #657432 ΔE 0.026
- Brown Green #706C11 ΔE 0.032
- Browny Green #6F6C0A ΔE 0.034
- Mud Green #606602 ΔE 0.039
- Camo Green #526525 ΔE 0.040
- Greeny Brown #696006 ΔE 0.041
Use #646C36 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.