#559040
Closest named color: Fern Green (#548D44). oklch(59.4% 0.129 138.2), rgb(85, 144, 64).
Aa
Black text reads best on this color (5.44:1).
About this color
#559040 is a medium-dark, moderately saturated green. In OKLCH its lightness is 59%, its chroma 0.129 and its hue 138°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Fern Green (#548D44), ΔE 0.011 away. Black text reads best on it, at 5.44:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.129) |
| Temperature | in between |
| Nearest name | Fern Green (#548D44) |
| Black text | 5.44:1 |
| White text | 3.85:1 |
Values
| HEX | #559040 |
| RGB | rgb(85, 144, 64) |
| HSL | hsl(104, 38%, 41%) |
| OKLCH | oklch(59.4% 0.129 138.2) |
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 #559040 | 3.85:1 | AA large text | Lc -71.3 | Content text, not long reading |
| Black text on #559040 | 5.44:1 | AA | Lc 38.2 | Non-text elements, placeholder text |
| #559040 text on white | 3.85:1 | AA large text | Lc 65.8 | Content text, not long reading |
| #559040 text on black | 5.44:1 | AA | Lc -35.8 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F3F7F1
oklch(97.1% 0.009 134.9)
-
Step 100
100
#E4EDE1
oklch(93.6% 0.019 137.8)
-
Step 200
200
#CEDFC9
oklch(88.5% 0.035 138.6)
-
Step 300
300
#ADCBA4
oklch(80.9% 0.063 138.5)
-
Step 400
400
#81B072
oklch(70.8% 0.101 138.3)
-
Step 500
500 (this color)
#559040
oklch(59.4% 0.129 138.2)
-
Step 600
600
#45862C
oklch(55.7% 0.141 138.2)
-
Step 700
700
#36711E
oklch(49.1% 0.131 138.2)
-
Step 800
800
#2E5C1C
oklch(42.7% 0.107 138.1)
-
Step 900
900
#294C1D
oklch(37.8% 0.084 138.4)
-
Step 950
950
#192C12
oklch(26.9% 0.052 137.8)
#559040 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) | #948538 | 0.085 |
| Deuteranopia (no green cones) | #8C8046 | 0.085 |
| Tritanopia (no blue cones) | #528B7E | 0.089 |
| Achromatopsia (no color) | #828282 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #559040
#559040
oklch(59.4% 0.129 138.2)
- #9E64B0
#9E64B0
oklch(59.5% 0.128 317.9)
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 #559040, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern Green #548D44 ΔE 0.011
- Moss Green #658B38 ΔE 0.020
- Light Forest Green #4F9153 ΔE 0.021
- Mossy Green #638B27 ΔE 0.023
- Olive Drab #6B8E23 ΔE 0.029
- Sap Green #5C8B15 ΔE 0.031
- Swamp #698339 ΔE 0.041
- Khaki Green #728639 ΔE 0.041
Use #559040 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.