#539E01
Closest named color: Grassy Green (#419C03). oklch(62.6% 0.182 134.7), rgb(83, 158, 1).
Aa
Black text reads best on this color (6.25:1).
About this color
#539E01 is a medium-light, vivid green. In OKLCH its lightness is 63%, its chroma 0.182 and its hue 135°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grassy Green (#419C03), ΔE 0.017 away. Black text reads best on it, at 6.25:1.
| Hue family | Greens |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.182) |
| Temperature | in between |
| Nearest name | Grassy Green (#419C03) |
| Black text | 6.25:1 |
| White text | 3.35:1 |
Values
| HEX | #539E01 |
| RGB | rgb(83, 158, 1) |
| HSL | hsl(89, 99%, 31%) |
| OKLCH | oklch(62.6% 0.182 134.7) |
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 #539E01 | 3.35:1 | AA large text | Lc -66.1 | Content text, not long reading |
| Black text on #539E01 | 6.25:1 | AA | Lc 43.4 | Non-text elements, placeholder text |
| #539E01 text on white | 3.35:1 | AA large text | Lc 60.6 | Content text, not long reading |
| #539E01 text on black | 6.25:1 | AA | Lc -41.1 | 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 500.
-
Step 50
50
#F2F7EF
oklch(97% 0.012 133.4)
-
Step 100
100
#E3EEDD
oklch(93.6% 0.025 134.3)
-
Step 200
200
#CCE1C0
oklch(88.5% 0.05 134.1)
-
Step 300
300
#A8CE94
oklch(80.9% 0.089 135.1)
-
Step 400
400
#79B454
oklch(70.8% 0.142 134.8)
-
Step 500
500 (this color)
#539E01
oklch(62.6% 0.182 134.7)
-
Step 600
600
#468600
oklch(55.5% 0.161 134.6)
-
Step 700
700
#3A7100
oklch(49.1% 0.142 134.6)
-
Step 800
800
#2E5D00
oklch(42.8% 0.125 134.8)
-
Step 900
900
#254D00
oklch(37.6% 0.109 134.8)
-
Step 950
950
#152E02
oklch(27% 0.075 134.7)
#539E01 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) | #A49000 | 0.109 |
| Deuteranopia (no green cones) | #9B8A1F | 0.108 |
| Tritanopia (no blue cones) | #519786 | 0.134 |
| Achromatopsia (no color) | #8C8C8C | 0.182 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #539E01
#539E01
oklch(62.6% 0.182 134.7)
- #B05FD2
#B05FD2
oklch(62.6% 0.182 314.9)
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 #539E01, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grassy Green #419C03 ΔE 0.017
- Grass Green #3F9B0B ΔE 0.020
- Leaf Green #5CA904 ΔE 0.034
- Mid Green #50A747 ΔE 0.042
- Grass #5CAC2D ΔE 0.043
- Kelly Green #02AB2E ΔE 0.044
- Medium Green #39AD48 ΔE 0.049
- Dark Yellow Green #728F02 ΔE 0.052
Use #539E01 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.