#556B39
Closest named color: Dark Olive Green (#556B2F). oklch(49.7% 0.078 128.4), rgb(85, 107, 57).
Aa
White text reads best on this color (5.91:1).
About this color
#556B39 is a medium-dark, moderately saturated green. In OKLCH its lightness is 50%, its chroma 0.078 and its hue 128°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Olive Green (#556B2F), ΔE 0.012 away. White text reads best on it, at 5.91:1.
| Hue family | Greens |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.078) |
| Temperature | in between |
| Nearest name | Dark Olive Green (#556B2F) |
| Black text | 3.54:1 |
| White text | 5.91:1 |
Values
| HEX | #556B39 |
| RGB | rgb(85, 107, 57) |
| HSL | hsl(86, 30%, 32%) |
| OKLCH | oklch(49.7% 0.078 128.4) |
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 #556B39 | 5.91:1 | AA | Lc -84.8 | Fine for body text |
| Black text on #556B39 | 3.54:1 | AA large text | Lc 24.5 | Dividers and decoration only |
| #556B39 text on white | 5.91:1 | AA | Lc 79.6 | Fine for body text |
| #556B39 text on black | 3.54:1 | AA large text | Lc -22.3 | 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
#D5DCCD
oklch(88.5% 0.022 127.4)
-
Step 300
300
#B9C6AC
oklch(80.9% 0.038 129)
-
Step 400
400
#95A880
oklch(70.6% 0.06 128.5)
-
Step 500
500
#7B9360
oklch(63.1% 0.078 128.9)
-
Step 600
600
#647D46
oklch(55.6% 0.085 128.8)
-
Step 700
700 (this color)
#556B39
oklch(49.7% 0.078 128.4)
-
Step 800
800
#44562E
oklch(42.7% 0.066 128.7)
-
Step 900
900
#394729
oklch(37.7% 0.052 129)
-
Step 950
950
#222A18
oklch(27.2% 0.034 127.9)
#556B39 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) | #6F6535 | 0.041 |
| Deuteranopia (no green cones) | #6C643C | 0.041 |
| Tritanopia (no blue cones) | #57675F | 0.061 |
| Achromatopsia (no color) | #646464 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #556B39
#556B39
oklch(49.7% 0.078 128.4)
- #6F5685
#6F5685
oklch(49.7% 0.079 308.1)
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 #556B39, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive Green #556B2F ΔE 0.012
- Dark Moss Green #606C38 ΔE 0.016
- Camo Green #526525 ΔE 0.026
- Muddy Green #657432 ΔE 0.039
- Mud Green #606602 ΔE 0.039
- Greeny Brown #696006 ΔE 0.046
- Camouflage Green #4B6113 ΔE 0.047
- Brown Green #706C11 ΔE 0.048
Use #556B39 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.