#509339
Closest named color: Fern Green (#548D44). oklch(59.8% 0.142 138.5), rgb(80, 147, 57).
Aa
Black text reads best on this color (5.57:1).
About this color
#509339 is a medium-dark, vivid green. In OKLCH its lightness is 60%, its chroma 0.142 and its hue 139°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Fern Green (#548D44), ΔE 0.024 away. Black text reads best on it, at 5.57:1.
| Hue family | Greens |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.142) |
| Temperature | in between |
| Nearest name | Fern Green (#548D44) |
| Black text | 5.57:1 |
| White text | 3.76:1 |
Values
| HEX | #509339 |
| RGB | rgb(80, 147, 57) |
| HSL | hsl(105, 44%, 40%) |
| OKLCH | oklch(59.8% 0.142 138.5) |
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 #509339 | 3.76:1 | AA large text | Lc -70.5 | Content text, not long reading |
| Black text on #509339 | 5.57:1 | AA | Lc 39.1 | Non-text elements, placeholder text |
| #509339 text on white | 3.76:1 | AA large text | Lc 65.0 | Content text, not long reading |
| #509339 text on black | 5.57:1 | AA | Lc -36.7 | 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
#F2F7F1
oklch(97.1% 0.01 140.5)
-
Step 100
100
#E3EDE0
oklch(93.5% 0.02 138.4)
-
Step 200
200
#CDE0C7
oklch(88.6% 0.039 138.2)
-
Step 300
300
#ABCCA1
oklch(81% 0.069 138.5)
-
Step 400
400
#7DB16C
oklch(70.7% 0.111 138.2)
-
Step 500
500 (this color)
#509339
oklch(59.8% 0.142 138.5)
-
Step 600
600
#3D8720
oklch(55.5% 0.154 138.6)
-
Step 700
700
#2F7311
oklch(49.2% 0.144 138.5)
-
Step 800
800
#285D13
oklch(42.6% 0.118 138.5)
-
Step 900
900
#264D18
oklch(37.8% 0.093 138.4)
-
Step 950
950
#172D0F
oklch(27% 0.059 138.1)
#509339 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) | #97872F | 0.094 |
| Deuteranopia (no green cones) | #8E8140 | 0.094 |
| Tritanopia (no blue cones) | #4B8E80 | 0.098 |
| Achromatopsia (no color) | #838383 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #509339
#509339
oklch(59.8% 0.142 138.5)
- #A361B5
#A361B5
oklch(59.8% 0.142 318.8)
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 #509339, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern Green #548D44 ΔE 0.024
- Mossy Green #638B27 ΔE 0.027
- Sap Green #5C8B15 ΔE 0.028
- Olive Drab #6B8E23 ΔE 0.030
- Moss Green #658B38 ΔE 0.031
- Light Forest Green #4F9153 ΔE 0.031
- Dark Yellow Green #728F02 ΔE 0.041
- Kelley Green #009337 ΔE 0.042
Use #509339 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.