#539D31
Closest named color: Grass Green (#3F9B0B). oklch(62.5% 0.16 137.5), rgb(83, 157, 49).
Aa
Black text reads best on this color (6.23:1).
About this color
#539D31 is a medium-light, vivid green. In OKLCH its lightness is 63%, its chroma 0.160 and its hue 137°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grass Green (#3F9B0B), ΔE 0.030 away. Black text reads best on it, at 6.23:1.
| Hue family | Greens |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.160) |
| Temperature | in between |
| Nearest name | Grass Green (#3F9B0B) |
| Black text | 6.23:1 |
| White text | 3.36:1 |
Values
| HEX | #539D31 |
| RGB | rgb(83, 157, 49) |
| HSL | hsl(101, 52%, 40%) |
| OKLCH | oklch(62.5% 0.16 137.5) |
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 #539D31 | 3.36:1 | AA large text | Lc -66.3 | Content text, not long reading |
| Black text on #539D31 | 6.23:1 | AA | Lc 43.2 | Non-text elements, placeholder text |
| #539D31 text on white | 3.36:1 | AA large text | Lc 60.9 | Content text, not long reading |
| #539D31 text on black | 6.23:1 | AA | Lc -40.8 | 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
#F2F7F0
oklch(97% 0.011 136.6)
-
Step 100
100
#E3EEDF
oklch(93.7% 0.023 137.2)
-
Step 200
200
#CCE0C4
oklch(88.4% 0.043 136.7)
-
Step 300
300
#A9CD9B
oklch(80.9% 0.079 137)
-
Step 400
400
#79B363
oklch(70.7% 0.126 137.6)
-
Step 500
500 (this color)
#539D31
oklch(62.5% 0.16 137.5)
-
Step 600
600
#398800
oklch(55.5% 0.17 137.5)
-
Step 700
700
#2F7300
oklch(49.2% 0.15 137.5)
-
Step 800
800
#255E00
oklch(42.7% 0.13 137.5)
-
Step 900
900
#224E0C
oklch(37.8% 0.106 137.6)
-
Step 950
950
#152E0A
oklch(27.1% 0.067 137.5)
#539D31 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) | #A29022 | 0.102 |
| Deuteranopia (no green cones) | #988A3B | 0.102 |
| Tritanopia (no blue cones) | #4F9787 | 0.113 |
| Achromatopsia (no color) | #8C8C8C | 0.161 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #539D31
#539D31
oklch(62.5% 0.16 137.5)
- #AE64C6
#AE64C6
oklch(62.4% 0.161 317.4)
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 #539D31, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grass Green #3F9B0B ΔE 0.030
- Grassy Green #419C03 ΔE 0.030
- Mid Green #50A747 ΔE 0.030
- Muted Green #5FA052 ΔE 0.036
- Flat Green #699D4C ΔE 0.038
- Medium Green #39AD48 ΔE 0.044
- Leaf Green #5CA904 ΔE 0.045
- Olive Drab #6B8E23 ΔE 0.045
Use #539D31 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.