#558100
Closest named color: Olive Green (#677A04). oklch(55% 0.147 129.5), rgb(85, 129, 0).
Aa
White text reads best on this color (4.63:1).
About this color
#558100 is a medium-dark, vivid green. In OKLCH its lightness is 55%, its chroma 0.147 and its hue 129°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Olive Green (#677A04), ΔE 0.030 away. White text reads best on it, at 4.63:1.
| Hue family | Greens |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.147) |
| Temperature | in between |
| Nearest name | Olive Green (#677A04) |
| Black text | 4.52:1 |
| White text | 4.63:1 |
Values
| HEX | #558100 |
| RGB | rgb(85, 129, 0) |
| HSL | hsl(80, 100%, 25%) |
| OKLCH | oklch(55% 0.147 129.5) |
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 #558100 | 4.63:1 | AA | Lc -77.4 | Fine for body text |
| Black text on #558100 | 4.52:1 | AA | Lc 32.1 | Non-text elements, placeholder text |
| #558100 text on white | 4.63:1 | AA | Lc 72.0 | Content text, not long reading |
| #558100 text on black | 4.52:1 | AA | Lc -29.7 | 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
#F3F7F1
oklch(97.1% 0.009 134.9)
-
Step 100
100
#E6EDDF
oklch(93.7% 0.02 128.7)
-
Step 200
200
#D1DEC5
oklch(88.4% 0.036 129.7)
-
Step 300
300
#B3CA9D
oklch(81% 0.066 129.8)
-
Step 400
400
#8BAE65
oklch(70.7% 0.107 129.7)
-
Step 500
500
#6F9937
oklch(63.1% 0.136 129.3)
-
Step 600
600 (this color)
#558100
oklch(55% 0.147 129.5)
-
Step 700
700
#486E00
oklch(49.1% 0.131 129.4)
-
Step 800
800
#3A5A02
oklch(42.6% 0.113 129.6)
-
Step 900
900
#324A10
oklch(37.6% 0.088 129.5)
-
Step 950
950
#1D2C0B
oklch(27.1% 0.057 130.1)
#558100 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) | #887700 | 0.076 |
| Deuteranopia (no green cones) | #827417 | 0.075 |
| Tritanopia (no blue cones) | #587B6D | 0.115 |
| Achromatopsia (no color) | #757575 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #558100
#558100
oklch(55% 0.147 129.5)
- #8B55B1
#8B55B1
oklch(55% 0.147 309.5)
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 #558100, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Green #677A04 ΔE 0.030
- Dark Grass Green #388004 ΔE 0.030
- Sap Green #5C8B15 ΔE 0.031
- Murky Green #6C7A0E ΔE 0.037
- Mossy Green #638B27 ΔE 0.039
- Tree Green #2A7E19 ΔE 0.041
- Forest Green #228B22 ΔE 0.044
- Swamp Green #748500 ΔE 0.044
Use #558100 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.