#558E42
Closest named color: Fern Green (#548D44). oklch(58.9% 0.124 138.4), rgb(85, 142, 66).
Aa
Black text reads best on this color (5.33:1).
About this color
#558E42 is a medium-dark, moderately saturated green. In OKLCH its lightness is 59%, its chroma 0.124 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 0.004 away. Black text reads best on it, at 5.33:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.124) |
| Temperature | in between |
| Nearest name | Fern Green (#548D44) |
| Black text | 5.33:1 |
| White text | 3.93:1 |
Values
| HEX | #558E42 |
| RGB | rgb(85, 142, 66) |
| HSL | hsl(105, 37%, 41%) |
| OKLCH | oklch(58.9% 0.124 138.4) |
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 #558E42 | 3.93:1 | AA large text | Lc -72.1 | Content text, not long reading |
| Black text on #558E42 | 5.33:1 | AA | Lc 37.5 | Non-text elements, placeholder text |
| #558E42 text on white | 3.93:1 | AA large text | Lc 66.6 | Content text, not long reading |
| #558E42 text on black | 5.33:1 | AA | Lc -35.1 | 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 600.
-
Step 50
50
#F3F7F2
oklch(97.2% 0.008 139.4)
-
Step 100
100
#E5EDE2
oklch(93.7% 0.017 137)
-
Step 200
200
#CFDECB
oklch(88.4% 0.03 139.1)
-
Step 300
300
#AFCAA7
oklch(80.9% 0.056 138.6)
-
Step 400
400
#85AE78
oklch(70.7% 0.088 138.3)
-
Step 500
500
#659A54
oklch(63.2% 0.115 138.4)
-
Step 600
600 (this color)
#558E42
oklch(58.9% 0.124 138.4)
-
Step 700
700
#3C702A
oklch(49.2% 0.116 138.5)
-
Step 800
800
#325B24
oklch(42.7% 0.096 138.4)
-
Step 900
900
#2C4B22
oklch(37.7% 0.075 138.5)
-
Step 950
950
#1A2C15
oklch(27% 0.047 139.1)
#558E42 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) | #92833B | 0.083 |
| Deuteranopia (no green cones) | #8A7E47 | 0.083 |
| Tritanopia (no blue cones) | #528A7D | 0.085 |
| Achromatopsia (no color) | #808080 | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #558E42
#558E42
oklch(58.9% 0.124 138.4)
- #9C63AC
#9C63AC
oklch(58.9% 0.125 318.6)
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 #558E42, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern Green #548D44 ΔE 0.004
- Moss Green #658B38 ΔE 0.018
- Light Forest Green #4F9153 ΔE 0.019
- Mossy Green #638B27 ΔE 0.024
- Olive Drab #6B8E23 ΔE 0.032
- Sap Green #5C8B15 ΔE 0.033
- Swamp #698339 ΔE 0.035
- Khaki Green #728639 ΔE 0.038
Use #558E42 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.