#538A4F
Closest named color: Fern Green (#548D44). oklch(58% 0.105 142.6), rgb(83, 138, 79).
Aa
Black text reads best on this color (5.11:1).
About this color
#538A4F is a medium-dark, moderately saturated green. In OKLCH its lightness is 58%, its chroma 0.105 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Fern Green (#548D44), ΔE 0.018 away. Black text reads best on it, at 5.11:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.105) |
| Temperature | in between |
| Nearest name | Fern Green (#548D44) |
| Black text | 5.11:1 |
| White text | 4.10:1 |
Values
| HEX | #538A4F |
| RGB | rgb(83, 138, 79) |
| HSL | hsl(116, 27%, 43%) |
| OKLCH | oklch(58% 0.105 142.6) |
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 #538A4F | 4.10:1 | AA large text | Lc -73.6 | Content text, not long reading |
| Black text on #538A4F | 5.11:1 | AA | Lc 36.0 | Non-text elements, placeholder text |
| #538A4F text on white | 4.10:1 | AA large text | Lc 68.1 | Content text, not long reading |
| #538A4F text on black | 5.11:1 | AA | Lc -33.6 | 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
#F3F7F3
oklch(97.2% 0.007 145.5)
-
Step 100
100
#E5ECE4
oklch(93.6% 0.013 141.8)
-
Step 200
200
#D0DECE
oklch(88.6% 0.026 141.8)
-
Step 300
300
#B0C9AD
oklch(80.9% 0.047 142.2)
-
Step 400
400
#85AD82
oklch(70.7% 0.075 143)
-
Step 500
500
#669962
oklch(63.2% 0.097 142.7)
-
Step 600
600 (this color)
#538A4F
oklch(58% 0.105 142.6)
-
Step 700
700
#3D6F39
oklch(49.2% 0.099 142.4)
-
Step 800
800
#335A30
oklch(42.7% 0.081 142.5)
-
Step 900
900
#2D4A2B
oklch(37.7% 0.062 142.8)
-
Step 950
950
#1B2B19
oklch(26.9% 0.039 141.8)
#538A4F 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) | #8D804B | 0.079 |
| Deuteranopia (no green cones) | #857B53 | 0.078 |
| Tritanopia (no blue cones) | #4D877C | 0.067 |
| Achromatopsia (no color) | #7D7D7D | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #538A4F
#538A4F
oklch(58% 0.105 142.6)
- #98649F
#98649F
oklch(58% 0.106 322.6)
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 #538A4F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern Green #548D44 ΔE 0.018
- Light Forest Green #4F9153 ΔE 0.020
- Dark Sage #598556 ΔE 0.021
- Sea Green #2E8B57 ΔE 0.030
- Moss Green #658B38 ΔE 0.030
- Swamp #698339 ΔE 0.032
- Khaki Green #728639 ΔE 0.039
- Viridian #1E9167 ΔE 0.041
Use #538A4F 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.