#558B3E
Closest named color: Fern Green (#548D44). oklch(58.1% 0.123 137.2), rgb(85, 139, 62).
Aa
Black text reads best on this color (5.14:1).
About this color
#558B3E is a medium-dark, moderately saturated green. In OKLCH its lightness is 58%, its chroma 0.123 and its hue 137°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Fern Green (#548D44), ΔE 0.007 away. Black text reads best on it, at 5.14:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.123) |
| Temperature | in between |
| Nearest name | Fern Green (#548D44) |
| Black text | 5.14:1 |
| White text | 4.07:1 |
Values
| HEX | #558B3E |
| RGB | rgb(85, 139, 62) |
| HSL | hsl(102, 38%, 39%) |
| OKLCH | oklch(58.1% 0.123 137.2) |
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 #558B3E | 4.07:1 | AA large text | Lc -73.3 | Content text, not long reading |
| Black text on #558B3E | 5.14:1 | AA | Lc 36.3 | Non-text elements, placeholder text |
| #558B3E text on white | 4.07:1 | AA large text | Lc 67.8 | Content text, not long reading |
| #558B3E text on black | 5.14:1 | AA | Lc -33.8 | 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 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
#D0DECB
oklch(88.5% 0.03 137.4)
-
Step 300
300
#B0CAA7
oklch(81% 0.056 137.7)
-
Step 400
400
#86AE77
oklch(70.7% 0.089 137.4)
-
Step 500
500
#679953
oklch(63% 0.113 137.3)
-
Step 600
600 (this color)
#558B3E
oklch(58.1% 0.123 137.2)
-
Step 700
700
#3E6F29
oklch(49% 0.115 137.5)
-
Step 800
800
#345B23
oklch(42.8% 0.096 137.2)
-
Step 900
900
#2E4B22
oklch(37.9% 0.074 137.2)
-
Step 950
950
#1B2C14
oklch(27.1% 0.048 137.1)
#558B3E 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) | #8F8137 | 0.079 |
| Deuteranopia (no green cones) | #887C43 | 0.080 |
| Tritanopia (no blue cones) | #53867A | 0.087 |
| Achromatopsia (no color) | #7E7E7E | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #558B3E
#558B3E
oklch(58.1% 0.123 137.2)
- #9861AA
#9861AA
oklch(58% 0.124 317.5)
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 #558B3E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern Green #548D44 ΔE 0.007
- Moss Green #658B38 ΔE 0.018
- Mossy Green #638B27 ΔE 0.023
- Light Forest Green #4F9153 ΔE 0.025
- Swamp #698339 ΔE 0.030
- Sap Green #5C8B15 ΔE 0.030
- Olive Drab #6B8E23 ΔE 0.034
- Khaki Green #728639 ΔE 0.036
Use #558B3E 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.