#556B40
Closest named color: Dark Moss Green (#606C38). oklch(49.8% 0.07 130.6), rgb(85, 107, 64).
Aa
White text reads best on this color (5.89:1).
About this color
#556B40 is a medium-dark, muted green. In OKLCH its lightness is 50%, its chroma 0.070 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 0.018 away. White text reads best on it, at 5.89:1.
| Hue family | Greens |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.070) |
| Temperature | in between |
| Nearest name | Dark Moss Green (#606C38) |
| Black text | 3.56:1 |
| White text | 5.89:1 |
Values
| HEX | #556B40 |
| RGB | rgb(85, 107, 64) |
| HSL | hsl(91, 25%, 34%) |
| OKLCH | oklch(49.8% 0.07 130.6) |
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 #556B40 | 5.89:1 | AA | Lc -84.7 | Fine for body text |
| Black text on #556B40 | 3.56:1 | AA large text | Lc 24.6 | Dividers and decoration only |
| #556B40 text on white | 5.89:1 | AA | Lc 79.4 | Fine for body text |
| #556B40 text on black | 3.56:1 | AA large text | Lc -22.4 | 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
#E8EBE4
oklch(93.6% 0.01 125.7)
-
Step 200
200
#D5DCCF
oklch(88.5% 0.019 130.2)
-
Step 300
300
#B9C5AF
oklch(80.8% 0.033 130.7)
-
Step 400
400
#95A885
oklch(70.7% 0.054 130.9)
-
Step 500
500
#7B9266
oklch(63% 0.069 130.6)
-
Step 600
600
#647C4D
oklch(55.5% 0.075 130.5)
-
Step 700
700 (this color)
#556B40
oklch(49.8% 0.07 130.6)
-
Step 800
800
#445633
oklch(42.8% 0.059 130.7)
-
Step 900
900
#39472D
oklch(37.8% 0.046 131.3)
-
Step 950
950
#22291B
oklch(26.9% 0.027 129.6)
#556B40 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) | #6F653D | 0.041 |
| Deuteranopia (no green cones) | #6B6442 | 0.039 |
| Tritanopia (no blue cones) | #566860 | 0.052 |
| Achromatopsia (no color) | #646464 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #556B40
#556B40
oklch(49.8% 0.07 130.6)
- #6F5780
#6F5780
oklch(49.7% 0.07 310.7)
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 #556B40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Moss Green #606C38 ΔE 0.018
- Dark Olive Green #556B2F ΔE 0.021
- Camo Green #526525 ΔE 0.033
- Muddy Green #657432 ΔE 0.043
- Mud Green #606602 ΔE 0.048
- Greeny Brown #696006 ΔE 0.052
- Camouflage Green #4B6113 ΔE 0.053
- Brown Green #706C11 ΔE 0.054
Use #556B40 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.