#558B5B
Closest named color: Dark Sage (#598556). oklch(58.6% 0.093 146.9), rgb(85, 139, 91).
Aa
Black text reads best on this color (5.23:1).
About this color
#558B5B is a medium-dark, moderately saturated green. In OKLCH its lightness is 59%, its chroma 0.093 and its hue 147°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.017 away. Black text reads best on it, at 5.23:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.093) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 5.23:1 |
| White text | 4.01:1 |
Values
| HEX | #558B5B |
| RGB | rgb(85, 139, 91) |
| HSL | hsl(127, 24%, 44%) |
| OKLCH | oklch(58.6% 0.093 146.9) |
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 #558B5B | 4.01:1 | AA large text | Lc -72.8 | Content text, not long reading |
| Black text on #558B5B | 5.23:1 | AA | Lc 36.8 | Non-text elements, placeholder text |
| #558B5B text on white | 4.01:1 | AA large text | Lc 67.3 | Content text, not long reading |
| #558B5B text on black | 5.23:1 | AA | Lc -34.3 | 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
#F3F6F3
oklch(97% 0.005 145.5)
-
Step 100
100
#E5ECE5
oklch(93.6% 0.012 145.5)
-
Step 200
200
#D0DED0
oklch(88.6% 0.024 145.4)
-
Step 300
300
#B0C8B1
oklch(80.8% 0.041 146.3)
-
Step 400
400
#85AC88
oklch(70.6% 0.067 146.8)
-
Step 500
500
#66986B
oklch(63.2% 0.086 146.9)
-
Step 600
600 (this color)
#558B5B
oklch(58.6% 0.093 146.9)
-
Step 700
700
#3D6E43
oklch(49.1% 0.086 146.9)
-
Step 800
800
#335A37
oklch(42.8% 0.072 146.5)
-
Step 900
900
#2D4A30
oklch(37.8% 0.056 146.8)
-
Step 950
950
#1B2B1C
oklch(27% 0.035 146.1)
#558B5B 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) | #8C8258 | 0.074 |
| Deuteranopia (no green cones) | #847D5E | 0.073 |
| Tritanopia (no blue cones) | #4E897F | 0.055 |
| Achromatopsia (no color) | #7F7F7F | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #558B5B
#558B5B
oklch(58.6% 0.093 146.9)
- #996899
#996899
oklch(58.6% 0.093 326.7)
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 #558B5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.017
- Light Forest Green #4F9153 ΔE 0.025
- Fern Green #548D44 ΔE 0.032
- Slate Green #658D6D ΔE 0.033
- Sea Green #2E8B57 ΔE 0.034
- Viridian #1E9167 ΔE 0.038
- Swamp #698339 ΔE 0.041
- Moss Green #658B38 ΔE 0.042
Use #558B5B 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.