#556D57
Closest named color: Dark Moss Green (#606C38). oklch(50.9% 0.045 147.1), rgb(85, 109, 87).
Aa
White text reads best on this color (5.65:1).
About this color
#556D57 is a medium-dark, muted green. In OKLCH its lightness is 51%, its chroma 0.045 and its hue 147°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Moss Green (#606C38), ΔE 0.042 away. White text reads best on it, at 5.65:1.
| Hue family | Greens |
| Lightness | medium-dark (51%) |
| Chroma | muted (0.045) |
| Temperature | in between |
| Nearest name | Dark Moss Green (#606C38) |
| Black text | 3.71:1 |
| White text | 5.65:1 |
Values
| HEX | #556D57 |
| RGB | rgb(85, 109, 87) |
| HSL | hsl(125, 12%, 38%) |
| OKLCH | oklch(50.9% 0.045 147.1) |
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 #556D57 | 5.65:1 | AA | Lc -83.6 | Fine for body text |
| Black text on #556D57 | 3.71:1 | AA large text | Lc 25.8 | Dividers and decoration only |
| #556D57 text on white | 5.65:1 | AA | Lc 78.3 | Fine for body text |
| #556D57 text on black | 3.71:1 | AA large text | Lc -23.5 | 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
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E7EBE7
oklch(93.6% 0.007 145.5)
-
Step 200
200
#D4DBD5
oklch(88.4% 0.011 149.8)
-
Step 300
300
#B8C5B9
oklch(81% 0.022 147.6)
-
Step 400
400
#93A794
oklch(70.7% 0.035 146.6)
-
Step 500
500
#78917A
oklch(63% 0.044 147.2)
-
Step 600
600
#617B63
oklch(55.5% 0.048 146.9)
-
Step 700
700 (this color)
#556D57
oklch(50.9% 0.045 147.1)
-
Step 800
800
#425543
oklch(42.8% 0.038 146.2)
-
Step 900
900
#384639
oklch(37.8% 0.028 146.9)
-
Step 950
950
#212921
oklch(27% 0.018 145)
#556D57 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) | #6E6956 | 0.037 |
| Deuteranopia (no green cones) | #6A6658 | 0.036 |
| Tritanopia (no blue cones) | #526C67 | 0.026 |
| Achromatopsia (no color) | #676767 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #556D57
#556D57
oklch(50.9% 0.045 147.1)
- #745D73
#745D73
oklch(50.9% 0.044 327.6)
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 #556D57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Moss Green #606C38 ΔE 0.042
- Dim Gray #696969 ΔE 0.046
- Dark Olive Green #556B2F ΔE 0.052
- Slate #516572 ΔE 0.056
- Muddy Green #657432 ΔE 0.061
- Dark Taupe #7F684E ΔE 0.063
- Camo Green #526525 ΔE 0.063
- Dark Aquamarine #017371 ΔE 0.064
Use #556D57 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.