#558131
Closest named color: Swamp (#698339). oklch(55.3% 0.121 133.2), rgb(85, 129, 49).
Aa
White text reads best on this color (4.59:1).
About this color
#558131 is a medium-dark, moderately saturated green. In OKLCH its lightness is 55%, its chroma 0.121 and its hue 133°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Swamp (#698339), ΔE 0.029 away. White text reads best on it, at 4.59:1.
| Hue family | Greens |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.121) |
| Temperature | in between |
| Nearest name | Swamp (#698339) |
| Black text | 4.57:1 |
| White text | 4.59:1 |
Values
| HEX | #558131 |
| RGB | rgb(85, 129, 49) |
| HSL | hsl(93, 45%, 35%) |
| OKLCH | oklch(55.3% 0.121 133.2) |
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 #558131 | 4.59:1 | AA | Lc -77.2 | Fine for body text |
| Black text on #558131 | 4.57:1 | AA | Lc 32.3 | Non-text elements, placeholder text |
| #558131 text on white | 4.59:1 | AA | Lc 71.8 | Content text, not long reading |
| #558131 text on black | 4.57:1 | AA | Lc -29.9 | Dividers and decoration only |
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
#E6ECE2
oklch(93.6% 0.015 132.5)
-
Step 200
200
#D1DECA
oklch(88.5% 0.03 134.4)
-
Step 300
300
#B3C9A5
oklch(81% 0.055 133.3)
-
Step 400
400
#8BAD74
oklch(70.8% 0.088 133.3)
-
Step 500
500
#6E984F
oklch(63.1% 0.112 133.3)
-
Step 600
600 (this color)
#558131
oklch(55.3% 0.121 133.2)
-
Step 700
700
#466E24
oklch(49.2% 0.113 133.2)
-
Step 800
800
#3A5920
oklch(42.6% 0.092 133)
-
Step 900
900
#324A1F
oklch(37.8% 0.073 133)
-
Step 950
950
#1D2B13
oklch(26.9% 0.046 133.4)
#558131 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) | #867728 | 0.071 |
| Deuteranopia (no green cones) | #807437 | 0.071 |
| Tritanopia (no blue cones) | #557C70 | 0.090 |
| Achromatopsia (no color) | #757575 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #558131
#558131
oklch(55.3% 0.121 133.2)
- #8B5BA4
#8B5BA4
oklch(55.2% 0.121 313.2)
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 #558131, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Swamp #698339 ΔE 0.029
- Olive Green #677A04 ΔE 0.031
- Military Green #667C3E ΔE 0.033
- Murky Green #6C7A0E ΔE 0.033
- Fern Green #548D44 ΔE 0.036
- Moss Green #658B38 ΔE 0.037
- Mossy Green #638B27 ΔE 0.038
- Sap Green #5C8B15 ΔE 0.040
Use #558131 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.