#558D4A
Closest named color: Fern Green (#548D44). oklch(58.8% 0.114 140.4), rgb(85, 141, 74).
Aa
Black text reads best on this color (5.29:1).
About this color
#558D4A is a medium-dark, moderately saturated green. In OKLCH its lightness is 59%, its chroma 0.114 and its hue 140°. 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 5.29:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.114) |
| Temperature | in between |
| Nearest name | Fern Green (#548D44) |
| Black text | 5.29:1 |
| White text | 3.96:1 |
Values
| HEX | #558D4A |
| RGB | rgb(85, 141, 74) |
| HSL | hsl(110, 31%, 42%) |
| OKLCH | oklch(58.8% 0.114 140.4) |
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 #558D4A | 3.96:1 | AA large text | Lc -72.4 | Content text, not long reading |
| Black text on #558D4A | 5.29:1 | AA | Lc 37.2 | Non-text elements, placeholder text |
| #558D4A text on white | 3.96:1 | AA large text | Lc 66.9 | Content text, not long reading |
| #558D4A text on black | 5.29:1 | AA | Lc -34.8 | 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
#E5ECE3
oklch(93.5% 0.014 138.7)
-
Step 200
200
#CFDECC
oklch(88.4% 0.029 140.5)
-
Step 300
300
#AFC9AA
oklch(80.8% 0.051 140.6)
-
Step 400
400
#85AE7D
oklch(70.8% 0.083 140.5)
-
Step 500
500
#65995B
oklch(63% 0.106 140.5)
-
Step 600
600 (this color)
#558D4A
oklch(58.8% 0.114 140.4)
-
Step 700
700
#3D6F33
oklch(49.1% 0.105 140.4)
-
Step 800
800
#325B2A
oklch(42.8% 0.09 140.4)
-
Step 900
900
#2D4A27
oklch(37.6% 0.067 140.2)
-
Step 950
950
#1A2C17
oklch(27.1% 0.045 140.9)
#558D4A 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) | #908345 | 0.080 |
| Deuteranopia (no green cones) | #887E4E | 0.079 |
| Tritanopia (no blue cones) | #51897D | 0.076 |
| Achromatopsia (no color) | #808080 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #558D4A
#558D4A
oklch(58.8% 0.114 140.4)
- #9B65A6
#9B65A6
oklch(58.9% 0.114 320.7)
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 #558D4A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern Green #548D44 ΔE 0.007
- Light Forest Green #4F9153 ΔE 0.013
- Moss Green #658B38 ΔE 0.022
- Mossy Green #638B27 ΔE 0.032
- Dark Sage #598556 ΔE 0.033
- Swamp #698339 ΔE 0.033
- Sea Green #2E8B57 ΔE 0.035
- Khaki Green #728639 ΔE 0.036
Use #558D4A 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.