#509243
Closest named color: Fern Green (#548D44). oklch(59.7% 0.132 140.4), rgb(80, 146, 67).
Aa
Black text reads best on this color (5.53:1).
About this color
#509243 is a medium-dark, moderately saturated green. In OKLCH its lightness is 60%, its chroma 0.132 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Fern Green (#548D44), ΔE 0.015 away. Black text reads best on it, at 5.53:1.
| Hue family | Greens |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.132) |
| Temperature | in between |
| Nearest name | Fern Green (#548D44) |
| Black text | 5.53:1 |
| White text | 3.79:1 |
Values
| HEX | #509243 |
| RGB | rgb(80, 146, 67) |
| HSL | hsl(110, 37%, 42%) |
| OKLCH | oklch(59.7% 0.132 140.4) |
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 #509243 | 3.79:1 | AA large text | Lc -70.8 | Content text, not long reading |
| Black text on #509243 | 5.53:1 | AA | Lc 38.8 | Non-text elements, placeholder text |
| #509243 text on white | 3.79:1 | AA large text | Lc 65.3 | Content text, not long reading |
| #509243 text on black | 5.53:1 | AA | Lc -36.4 | 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 500.
-
Step 50
50
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E3EDE1
oklch(93.5% 0.019 140.5)
-
Step 200
200
#CDDFC9
oklch(88.4% 0.035 140)
-
Step 300
300
#ABCBA4
oklch(80.8% 0.064 140)
-
Step 400
400
#7DB173
oklch(70.8% 0.104 140.5)
-
Step 500
500 (this color)
#509243
oklch(59.7% 0.132 140.4)
-
Step 600
600
#3E872F
oklch(55.7% 0.143 140.4)
-
Step 700
700
#2F7221
oklch(49.1% 0.133 140.5)
-
Step 800
800
#285D1E
oklch(42.7% 0.11 140.6)
-
Step 900
900
#264C1E
oklch(37.6% 0.085 140.2)
-
Step 950
950
#172D12
oklch(27.1% 0.055 139.9)
#509243 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) | #96873C | 0.092 |
| Deuteranopia (no green cones) | #8C8149 | 0.090 |
| Tritanopia (no blue cones) | #4A8E80 | 0.087 |
| Achromatopsia (no color) | #838383 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #509243
#509243
oklch(59.7% 0.132 140.4)
- #A263AF
#A263AF
oklch(59.7% 0.131 320.6)
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 #509243, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern Green #548D44 ΔE 0.015
- Light Forest Green #4F9153 ΔE 0.020
- Moss Green #658B38 ΔE 0.027
- Mossy Green #638B27 ΔE 0.029
- Olive Drab #6B8E23 ΔE 0.034
- Sap Green #5C8B15 ΔE 0.034
- Sea Green #2E8B57 ΔE 0.045
- Flat Green #699D4C ΔE 0.045
Use #509243 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.