#528D45
Closest named color: Fern Green (#548D44). oklch(58.5% 0.121 140), rgb(82, 141, 69).
Aa
Black text reads best on this color (5.25:1).
About this color
#528D45 is a medium-dark, moderately saturated green. In OKLCH its lightness is 59%, its chroma 0.121 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 0.002 away. Black text reads best on it, at 5.25:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.121) |
| Temperature | in between |
| Nearest name | Fern Green (#548D44) |
| Black text | 5.25:1 |
| White text | 3.99:1 |
Values
| HEX | #528D45 |
| RGB | rgb(82, 141, 69) |
| HSL | hsl(109, 34%, 41%) |
| OKLCH | oklch(58.5% 0.121 140) |
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 #528D45 | 3.99:1 | AA large text | Lc -72.6 | Content text, not long reading |
| Black text on #528D45 | 5.25:1 | AA | Lc 37.0 | Non-text elements, placeholder text |
| #528D45 text on white | 3.99:1 | AA large text | Lc 67.1 | Content text, not long reading |
| #528D45 text on black | 5.25:1 | AA | Lc -34.5 | 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 600.
-
Step 50
50
#F3F7F2
oklch(97.2% 0.008 139.4)
-
Step 100
100
#E4EDE3
oklch(93.7% 0.016 142.6)
-
Step 200
200
#CFDECC
oklch(88.4% 0.029 140.5)
-
Step 300
300
#AFCAA9
oklch(81% 0.054 140)
-
Step 400
400
#84AE7A
oklch(70.7% 0.087 139.7)
-
Step 500
500
#649A58
oklch(63.2% 0.111 140)
-
Step 600
600 (this color)
#528D45
oklch(58.5% 0.121 140)
-
Step 700
700
#3A702E
oklch(49.2% 0.114 140.1)
-
Step 800
800
#315B27
oklch(42.7% 0.093 139.8)
-
Step 900
900
#2B4B25
oklch(37.7% 0.073 140.5)
-
Step 950
950
#1A2C16
oklch(27% 0.046 140)
#528D45 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) | #91823F | 0.085 |
| Deuteranopia (no green cones) | #887D4A | 0.084 |
| Tritanopia (no blue cones) | #4D897C | 0.080 |
| Achromatopsia (no color) | #7F7F7F | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #528D45
#528D45
oklch(58.5% 0.121 140)
- #9B62A8
#9B62A8
oklch(58.4% 0.121 320)
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 #528D45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern Green #548D44 ΔE 0.002
- Light Forest Green #4F9153 ΔE 0.017
- Moss Green #658B38 ΔE 0.022
- Mossy Green #638B27 ΔE 0.028
- Swamp #698339 ΔE 0.035
- Sea Green #2E8B57 ΔE 0.035
- Sap Green #5C8B15 ΔE 0.036
- Olive Drab #6B8E23 ΔE 0.038
Use #528D45 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.