#558A00
Closest named color: Sap Green (#5C8B15). oklch(57.4% 0.158 131.3), rgb(85, 138, 0).
Aa
Black text reads best on this color (5.02:1).
About this color
#558A00 is a medium-dark, vivid green. In OKLCH its lightness is 57%, its chroma 0.158 and its hue 131°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sap Green (#5C8B15), ΔE 0.012 away. Black text reads best on it, at 5.02:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.158) |
| Temperature | in between |
| Nearest name | Sap Green (#5C8B15) |
| Black text | 5.02:1 |
| White text | 4.18:1 |
Values
| HEX | #558A00 |
| RGB | rgb(85, 138, 0) |
| HSL | hsl(83, 100%, 27%) |
| OKLCH | oklch(57.4% 0.158 131.3) |
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 #558A00 | 4.18:1 | AA large text | Lc -74.0 | Content text, not long reading |
| Black text on #558A00 | 5.02:1 | AA | Lc 35.6 | Non-text elements, placeholder text |
| #558A00 text on white | 4.18:1 | AA large text | Lc 68.5 | Content text, not long reading |
| #558A00 text on black | 5.02:1 | AA | Lc -33.1 | 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
#F3F7F0
oklch(97.1% 0.01 131.4)
-
Step 100
100
#E5EDDF
oklch(93.6% 0.02 131.5)
-
Step 200
200
#D0DFC4
oklch(88.5% 0.04 131.1)
-
Step 300
300
#B0CB9B
oklch(81% 0.072 131.8)
-
Step 400
400
#87AF62
oklch(70.6% 0.114 131.2)
-
Step 500
500
#699B32
oklch(63.2% 0.145 131.3)
-
Step 600
600 (this color)
#558A00
oklch(57.4% 0.158 131.3)
-
Step 700
700
#436F00
oklch(49% 0.135 131.5)
-
Step 800
800
#365B00
oklch(42.7% 0.117 131.5)
-
Step 900
900
#2F4B0C
oklch(37.7% 0.094 131.1)
-
Step 950
950
#1C2C0A
oklch(27% 0.059 130.8)
#558A00 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) | #917E00 | 0.088 |
| Deuteranopia (no green cones) | #897B19 | 0.084 |
| Tritanopia (no blue cones) | #578474 | 0.119 |
| Achromatopsia (no color) | #7C7C7C | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #558A00
#558A00
oklch(57.4% 0.158 131.3)
- #9658BB
#9658BB
oklch(57.3% 0.158 311.3)
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 #558A00, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sap Green #5C8B15 ΔE 0.012
- Mossy Green #638B27 ΔE 0.027
- Olive Drab #6B8E23 ΔE 0.035
- Forest Green #228B22 ΔE 0.038
- Dark Yellow Green #728F02 ΔE 0.040
- Swamp Green #748500 ΔE 0.041
- Moss Green #658B38 ΔE 0.041
- Fern Green #548D44 ΔE 0.043
Use #558A00 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.