#556C40
Closest named color: Dark Moss Green (#606C38). oklch(50.1% 0.072 131), rgb(85, 108, 64).
Aa
White text reads best on this color (5.82:1).
About this color
#556C40 is a medium-dark, moderately saturated green. In OKLCH its lightness is 50%, its chroma 0.072 and its hue 131°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Moss Green (#606C38), ΔE 0.017 away. White text reads best on it, at 5.82:1.
| Hue family | Greens |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.072) |
| Temperature | in between |
| Nearest name | Dark Moss Green (#606C38) |
| Black text | 3.60:1 |
| White text | 5.82:1 |
Values
| HEX | #556C40 |
| RGB | rgb(85, 108, 64) |
| HSL | hsl(91, 26%, 34%) |
| OKLCH | oklch(50.1% 0.072 131) |
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 #556C40 | 5.82:1 | AA | Lc -84.3 | Fine for body text |
| Black text on #556C40 | 3.60:1 | AA large text | Lc 25.0 | Dividers and decoration only |
| #556C40 text on white | 5.82:1 | AA | Lc 79.1 | Fine for body text |
| #556C40 text on black | 3.60:1 | AA large text | Lc -22.7 | 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
#F4F6F3
oklch(97.1% 0.004 134.8)
-
Step 100
100
#E7EBE4
oklch(93.5% 0.01 131.4)
-
Step 200
200
#D5DCCF
oklch(88.5% 0.019 130.2)
-
Step 300
300
#B9C6AF
oklch(81% 0.035 131.4)
-
Step 400
400
#95A884
oklch(70.7% 0.055 130.4)
-
Step 500
500
#7A9365
oklch(63.2% 0.072 131.4)
-
Step 600
600
#637D4C
oklch(55.6% 0.078 131.3)
-
Step 700
700 (this color)
#556C40
oklch(50.1% 0.072 131)
-
Step 800
800
#435633
oklch(42.7% 0.06 131.7)
-
Step 900
900
#39472D
oklch(37.8% 0.046 131.3)
-
Step 950
950
#21291A
oklch(26.8% 0.029 131)
#556C40 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) | #70663D | 0.042 |
| Deuteranopia (no green cones) | #6C6442 | 0.041 |
| Tritanopia (no blue cones) | #566961 | 0.053 |
| Achromatopsia (no color) | #656565 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #556C40
#556C40
oklch(50.1% 0.072 131)
- #715882
#715882
oklch(50.2% 0.071 311.1)
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 #556C40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Moss Green #606C38 ΔE 0.017
- Dark Olive Green #556B2F ΔE 0.020
- Camo Green #526525 ΔE 0.034
- Muddy Green #657432 ΔE 0.040
- Mud Green #606602 ΔE 0.047
- Brown Green #706C11 ΔE 0.053
- Greeny Brown #696006 ΔE 0.053
- Browny Green #6F6C0A ΔE 0.054
Use #556C40 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.