#558D31
Closest named color: Mossy Green (#638B27). oklch(58.4% 0.138 135.2), rgb(85, 141, 49).
Aa
Black text reads best on this color (5.24:1).
About this color
#558D31 is a medium-dark, moderately saturated green. In OKLCH its lightness is 58%, its chroma 0.138 and its hue 135°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Mossy Green (#638B27), ΔE 0.015 away. Black text reads best on it, at 5.24:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.138) |
| Temperature | in between |
| Nearest name | Mossy Green (#638B27) |
| Black text | 5.24:1 |
| White text | 4.00:1 |
Values
| HEX | #558D31 |
| RGB | rgb(85, 141, 49) |
| HSL | hsl(97, 48%, 37%) |
| OKLCH | oklch(58.4% 0.138 135.2) |
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 #558D31 | 4.00:1 | AA large text | Lc -72.7 | Content text, not long reading |
| Black text on #558D31 | 5.24:1 | AA | Lc 36.9 | Non-text elements, placeholder text |
| #558D31 text on white | 4.00:1 | AA large text | Lc 67.2 | Content text, not long reading |
| #558D31 text on black | 5.24:1 | AA | Lc -34.5 | 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
#F3F7F1
oklch(97.1% 0.009 134.9)
-
Step 100
100
#E5EDE1
oklch(93.7% 0.018 134.9)
-
Step 200
200
#CFDFC8
oklch(88.5% 0.035 136)
-
Step 300
300
#B0CAA2
oklch(80.9% 0.062 134.7)
-
Step 400
400
#85AF6F
oklch(70.7% 0.1 135.3)
-
Step 500
500
#669A48
oklch(63% 0.126 135.3)
-
Step 600
600 (this color)
#558D31
oklch(58.4% 0.138 135.2)
-
Step 700
700
#3E7019
oklch(49.2% 0.128 135.1)
-
Step 800
800
#335B18
oklch(42.6% 0.106 135.2)
-
Step 900
900
#2D4B1B
oklch(37.7% 0.082 135.3)
-
Step 950
950
#1B2C11
oklch(27% 0.052 135.1)
#558D31 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) | #928226 | 0.084 |
| Deuteranopia (no green cones) | #8A7D38 | 0.084 |
| Tritanopia (no blue cones) | #54887A | 0.099 |
| Achromatopsia (no color) | #7F7F7F | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #558D31
#558D31
oklch(58.4% 0.138 135.2)
- #9A5FB3
#9A5FB3
oklch(58.4% 0.139 315.1)
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 #558D31, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mossy Green #638B27 ΔE 0.015
- Sap Green #5C8B15 ΔE 0.017
- Fern Green #548D44 ΔE 0.019
- Moss Green #658B38 ΔE 0.022
- Olive Drab #6B8E23 ΔE 0.026
- Light Forest Green #4F9153 ΔE 0.034
- Dark Yellow Green #728F02 ΔE 0.039
- Swamp #698339 ΔE 0.040
Use #558D31 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.