#539B04
Closest named color: Grassy Green (#419C03). oklch(61.8% 0.177 134.5), rgb(83, 155, 4).
Aa
Black text reads best on this color (6.05:1).
About this color
#539B04 is a medium-dark, vivid green. In OKLCH its lightness is 62%, its chroma 0.177 and its hue 134°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grassy Green (#419C03), ΔE 0.015 away. Black text reads best on it, at 6.05:1.
| Hue family | Greens |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.177) |
| Temperature | in between |
| Nearest name | Grassy Green (#419C03) |
| Black text | 6.05:1 |
| White text | 3.46:1 |
Values
| HEX | #539B04 |
| RGB | rgb(83, 155, 4) |
| HSL | hsl(89, 95%, 31%) |
| OKLCH | oklch(61.8% 0.177 134.5) |
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 #539B04 | 3.46:1 | AA large text | Lc -67.3 | Content text, not long reading |
| Black text on #539B04 | 6.05:1 | AA | Lc 42.2 | Non-text elements, placeholder text |
| #539B04 text on white | 3.46:1 | AA large text | Lc 61.9 | Content text, not long reading |
| #539B04 text on black | 6.05:1 | AA | Lc -39.8 | 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
#E3EEDD
oklch(93.6% 0.025 134.3)
-
Step 200
200
#CCE1C1
oklch(88.6% 0.049 134.8)
-
Step 300
300
#A9CE95
oklch(81% 0.087 134.9)
-
Step 400
400
#7BB356
oklch(70.7% 0.138 134.3)
-
Step 500
500 (this color)
#539B04
oklch(61.8% 0.177 134.5)
-
Step 600
600
#478600
oklch(55.6% 0.16 134.3)
-
Step 700
700
#3A7100
oklch(49.1% 0.142 134.6)
-
Step 800
800
#2F5D00
oklch(42.8% 0.124 134.5)
-
Step 900
900
#264D00
oklch(37.6% 0.109 134.4)
-
Step 950
950
#162E03
oklch(27.1% 0.074 134.4)
#539B04 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) | #A18D00 | 0.106 |
| Deuteranopia (no green cones) | #988820 | 0.104 |
| Tritanopia (no blue cones) | #519583 | 0.129 |
| Achromatopsia (no color) | #8A8A8A | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #539B04
#539B04
oklch(61.8% 0.177 134.5)
- #AC5ECE
#AC5ECE
oklch(61.8% 0.178 314.5)
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 #539B04, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grassy Green #419C03 ΔE 0.015
- Grass Green #3F9B0B ΔE 0.017
- Leaf Green #5CA904 ΔE 0.043
- Mid Green #50A747 ΔE 0.046
- Dark Yellow Green #728F02 ΔE 0.046
- Sap Green #5C8B15 ΔE 0.048
- Irish Green #019529 ΔE 0.049
- Olive Drab #6B8E23 ΔE 0.049
Use #539B04 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.