#518D11
Closest named color: Sap Green (#5C8B15). oklch(58% 0.159 133.5), rgb(81, 141, 17).
Aa
Black text reads best on this color (5.16:1).
About this color
#518D11 is a medium-dark, vivid green. In OKLCH its lightness is 58%, its chroma 0.159 and its hue 134°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sap Green (#5C8B15), ΔE 0.013 away. Black text reads best on it, at 5.16:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.159) |
| Temperature | in between |
| Nearest name | Sap Green (#5C8B15) |
| Black text | 5.16:1 |
| White text | 4.06:1 |
Values
| HEX | #518D11 |
| RGB | rgb(81, 141, 17) |
| HSL | hsl(89, 78%, 31%) |
| OKLCH | oklch(58% 0.159 133.5) |
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 #518D11 | 4.06:1 | AA large text | Lc -73.1 | Content text, not long reading |
| Black text on #518D11 | 5.16:1 | AA | Lc 36.5 | Non-text elements, placeholder text |
| #518D11 text on white | 4.06:1 | AA large text | Lc 67.6 | Content text, not long reading |
| #518D11 text on black | 5.16:1 | AA | Lc -34.1 | 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
#E4EDDF
oklch(93.5% 0.021 134.1)
-
Step 200
200
#CFDFC5
oklch(88.5% 0.039 133.2)
-
Step 300
300
#AECB9C
oklch(80.8% 0.071 133.6)
-
Step 400
400
#83B064
oklch(70.7% 0.115 133.6)
-
Step 500
500
#649C36
oklch(63.2% 0.146 133.5)
-
Step 600
600 (this color)
#518D11
oklch(58% 0.159 133.5)
-
Step 700
700
#3D7000
oklch(49% 0.14 133.6)
-
Step 800
800
#315C00
oklch(42.6% 0.122 133.6)
-
Step 900
900
#2C4C0F
oklch(37.8% 0.095 133.5)
-
Step 950
950
#1A2C0B
oklch(26.9% 0.059 133.2)
#518D11 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) | #938100 | 0.092 |
| Deuteranopia (no green cones) | #8B7C22 | 0.092 |
| Tritanopia (no blue cones) | #518778 | 0.119 |
| Achromatopsia (no color) | #7E7E7E | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #518D11
#518D11
oklch(58% 0.159 133.5)
- #9B59BB
#9B59BB
oklch(58% 0.158 313.6)
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 #518D11, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sap Green #5C8B15 ΔE 0.013
- Mossy Green #638B27 ΔE 0.027
- Olive Drab #6B8E23 ΔE 0.034
- Forest Green #228B22 ΔE 0.036
- Dark Yellow Green #728F02 ΔE 0.040
- Fern Green #548D44 ΔE 0.041
- Moss Green #658B38 ΔE 0.041
- Kelley Green #009337 ΔE 0.042
Use #518D11 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.