#558D57
Closest named color: Light Forest Green (#4F9153). oklch(59% 0.1 145), rgb(85, 141, 87).
Aa
Black text reads best on this color (5.33:1).
About this color
#558D57 is a medium-dark, moderately saturated green. In OKLCH its lightness is 59%, its chroma 0.100 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Forest Green (#4F9153), ΔE 0.016 away. Black text reads best on it, at 5.33:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.100) |
| Temperature | in between |
| Nearest name | Light Forest Green (#4F9153) |
| Black text | 5.33:1 |
| White text | 3.93:1 |
Values
| HEX | #558D57 |
| RGB | rgb(85, 141, 87) |
| HSL | hsl(122, 25%, 44%) |
| OKLCH | oklch(59% 0.1 145) |
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 #558D57 | 3.93:1 | AA large text | Lc -72.1 | Content text, not long reading |
| Black text on #558D57 | 5.33:1 | AA | Lc 37.4 | Non-text elements, placeholder text |
| #558D57 text on white | 3.93:1 | AA large text | Lc 66.6 | Content text, not long reading |
| #558D57 text on black | 5.33:1 | AA | Lc -35.0 | 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
#F3F7F3
oklch(97.2% 0.007 145.5)
-
Step 100
100
#E5ECE5
oklch(93.6% 0.012 145.5)
-
Step 200
200
#CFDECF
oklch(88.5% 0.026 145.4)
-
Step 300
300
#AFC9AF
oklch(80.9% 0.046 145.1)
-
Step 400
400
#85AD85
oklch(70.7% 0.072 144.8)
-
Step 500
500
#659866
oklch(63% 0.092 144.8)
-
Step 600
600 (this color)
#558D57
oklch(59% 0.1 145)
-
Step 700
700
#3C6E3E
oklch(49% 0.093 144.8)
-
Step 800
800
#325A34
oklch(42.7% 0.077 145.2)
-
Step 900
900
#2C4A2D
oklch(37.7% 0.061 145)
-
Step 950
950
#1A2B1B
oklch(26.9% 0.037 145.9)
#558D57 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) | #8F8453 | 0.077 |
| Deuteranopia (no green cones) | #877E5A | 0.077 |
| Tritanopia (no blue cones) | #4E8A7F | 0.061 |
| Achromatopsia (no color) | #808080 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #558D57
#558D57
oklch(59% 0.1 145)
- #9B689E
#9B689E
oklch(59% 0.099 324.8)
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 #558D57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Forest Green #4F9153 ΔE 0.016
- Dark Sage #598556 ΔE 0.024
- Fern Green #548D44 ΔE 0.024
- Sea Green #2E8B57 ΔE 0.034
- Moss Green #658B38 ΔE 0.035
- Slate Green #658D6D ΔE 0.038
- Viridian #1E9167 ΔE 0.039
- Swamp #698339 ΔE 0.039
Use #558D57 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.