#558F4A
Closest named color: Fern Green (#548D44). oklch(59.3% 0.117 140.5), rgb(85, 143, 74).
Aa
Black text reads best on this color (5.41:1).
About this color
#558F4A is a medium-dark, moderately saturated green. In OKLCH its lightness is 59%, its chroma 0.117 and its hue 141°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Fern Green (#548D44), ΔE 0.008 away. Black text reads best on it, at 5.41:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.117) |
| Temperature | in between |
| Nearest name | Fern Green (#548D44) |
| Black text | 5.41:1 |
| White text | 3.87:1 |
Values
| HEX | #558F4A |
| RGB | rgb(85, 143, 74) |
| HSL | hsl(110, 32%, 43%) |
| OKLCH | oklch(59.3% 0.117 140.5) |
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 #558F4A | 3.87:1 | AA large text | Lc -71.6 | Content text, not long reading |
| Black text on #558F4A | 5.41:1 | AA | Lc 38.0 | Non-text elements, placeholder text |
| #558F4A text on white | 3.87:1 | AA large text | Lc 66.1 | Content text, not long reading |
| #558F4A text on black | 5.41:1 | AA | Lc -35.6 | 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
#E5EDE3
oklch(93.7% 0.016 139.4)
-
Step 200
200
#CFDECC
oklch(88.4% 0.029 140.5)
-
Step 300
300
#AFCAAA
oklch(81% 0.053 140.7)
-
Step 400
400
#84AE7C
oklch(70.7% 0.084 140.5)
-
Step 500
500
#649A5A
oklch(63.2% 0.109 140.6)
-
Step 600
600 (this color)
#558F4A
oklch(59.3% 0.117 140.5)
-
Step 700
700
#3B6F31
oklch(49% 0.109 140.5)
-
Step 800
800
#315B29
oklch(42.7% 0.091 140.5)
-
Step 900
900
#2C4B26
oklch(37.8% 0.071 140.4)
-
Step 950
950
#1A2C17
oklch(27.1% 0.045 140.9)
#558F4A 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) | #928544 | 0.082 |
| Deuteranopia (no green cones) | #8A7F4E | 0.082 |
| Tritanopia (no blue cones) | #508B7F | 0.078 |
| Achromatopsia (no color) | #818181 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #558F4A
#558F4A
oklch(59.3% 0.117 140.5)
- #9D65A9
#9D65A9
oklch(59.2% 0.118 320.4)
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 #558F4A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern Green #548D44 ΔE 0.008
- Light Forest Green #4F9153 ΔE 0.011
- Moss Green #658B38 ΔE 0.022
- Mossy Green #638B27 ΔE 0.032
- Swamp #698339 ΔE 0.037
- Olive Drab #6B8E23 ΔE 0.038
- Dark Sage #598556 ΔE 0.038
- Khaki Green #728639 ΔE 0.038
Use #558F4A 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.