#558303
Closest named color: Sap Green (#5C8B15). oklch(55.5% 0.148 130), rgb(85, 131, 3).
Aa
Black text reads best on this color (4.63:1).
About this color
#558303 is a medium-dark, vivid green. In OKLCH its lightness is 56%, its chroma 0.148 and its hue 130°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sap Green (#5C8B15), ΔE 0.026 away. Black text reads best on it, at 4.63:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.148) |
| Temperature | in between |
| Nearest name | Sap Green (#5C8B15) |
| Black text | 4.63:1 |
| White text | 4.53:1 |
Values
| HEX | #558303 |
| RGB | rgb(85, 131, 3) |
| HSL | hsl(82, 96%, 26%) |
| OKLCH | oklch(55.5% 0.148 130) |
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 #558303 | 4.53:1 | AA | Lc -76.7 | Fine for body text |
| Black text on #558303 | 4.63:1 | AA | Lc 32.9 | Non-text elements, placeholder text |
| #558303 text on white | 4.53:1 | AA | Lc 71.2 | Content text, not long reading |
| #558303 text on black | 4.63:1 | AA | Lc -30.5 | 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
#F3F7F0
oklch(97.1% 0.01 131.4)
-
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
#B2CA9D
oklch(80.9% 0.067 130.7)
-
Step 400
400
#8AAE65
oklch(70.7% 0.107 130.2)
-
Step 500
500
#6D9937
oklch(63% 0.137 130.1)
-
Step 600
600 (this color)
#558303
oklch(55.5% 0.148 130)
-
Step 700
700
#476E00
oklch(49% 0.131 129.8)
-
Step 800
800
#395A01
oklch(42.6% 0.114 130)
-
Step 900
900
#314A10
oklch(37.6% 0.088 130.1)
-
Step 950
950
#1D2C0B
oklch(27.1% 0.057 130.1)
#558303 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) | #8A7800 | 0.079 |
| Deuteranopia (no green cones) | #837519 | 0.077 |
| Tritanopia (no blue cones) | #587D6F | 0.116 |
| Achromatopsia (no color) | #767676 | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #558303
#558303
oklch(55.5% 0.148 130)
- #8E56B3
#8E56B3
oklch(55.6% 0.149 310.2)
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 #558303, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sap Green #5C8B15 ΔE 0.026
- Dark Grass Green #388004 ΔE 0.032
- Olive Green #677A04 ΔE 0.033
- Mossy Green #638B27 ΔE 0.034
- Murky Green #6C7A0E ΔE 0.039
- Forest Green #228B22 ΔE 0.041
- Swamp Green #748500 ΔE 0.042
- Tree Green #2A7E19 ΔE 0.044
Use #558303 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.