#508E3B
Closest named color: Fern Green (#548D44). oklch(58.6% 0.133 138.5), rgb(80, 142, 59).
Aa
Black text reads best on this color (5.27:1).
About this color
#508E3B is a medium-dark, moderately saturated green. In OKLCH its lightness is 59%, its chroma 0.133 and its hue 138°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Fern Green (#548D44), ΔE 0.012 away. Black text reads best on it, at 5.27:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.133) |
| Temperature | in between |
| Nearest name | Fern Green (#548D44) |
| Black text | 5.27:1 |
| White text | 3.98:1 |
Values
| HEX | #508E3B |
| RGB | rgb(80, 142, 59) |
| HSL | hsl(105, 41%, 39%) |
| OKLCH | oklch(58.6% 0.133 138.5) |
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 #508E3B | 3.98:1 | AA large text | Lc -72.5 | Content text, not long reading |
| Black text on #508E3B | 5.27:1 | AA | Lc 37.1 | Non-text elements, placeholder text |
| #508E3B text on white | 3.98:1 | AA large text | Lc 67.0 | Content text, not long reading |
| #508E3B text on black | 5.27:1 | AA | Lc -34.7 | 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
#E4EDE2
oklch(93.6% 0.017 140)
-
Step 200
200
#CFDFCA
oklch(88.6% 0.033 138.2)
-
Step 300
300
#AECAA5
oklch(80.8% 0.059 138.1)
-
Step 400
400
#82AF74
oklch(70.6% 0.096 138.4)
-
Step 500
500
#629B4F
oklch(63.2% 0.123 138.3)
-
Step 600
600 (this color)
#508E3B
oklch(58.6% 0.133 138.5)
-
Step 700
700
#387024
oklch(48.9% 0.124 138.5)
-
Step 800
800
#2F5C20
oklch(42.8% 0.103 138.7)
-
Step 900
900
#2A4B1F
oklch(37.6% 0.08 138.4)
-
Step 950
950
#192C13
oklch(26.9% 0.051 138.5)
#508E3B 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) | #928333 | 0.088 |
| Deuteranopia (no green cones) | #8A7D41 | 0.090 |
| Tritanopia (no blue cones) | #4C897C | 0.093 |
| Achromatopsia (no color) | #7F7F7F | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #508E3B
#508E3B
oklch(58.6% 0.133 138.5)
- #9D60AE
#9D60AE
oklch(58.6% 0.133 318.6)
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 #508E3B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern Green #548D44 ΔE 0.012
- Mossy Green #638B27 ΔE 0.022
- Moss Green #658B38 ΔE 0.023
- Sap Green #5C8B15 ΔE 0.026
- Light Forest Green #4F9153 ΔE 0.026
- Olive Drab #6B8E23 ΔE 0.032
- Swamp #698339 ΔE 0.040
- Sea Green #2E8B57 ΔE 0.042
Use #508E3B 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.