#508B4D
Closest named color: Fern Green (#548D44). oklch(58% 0.111 143), rgb(80, 139, 77).
Aa
Black text reads best on this color (5.14:1).
About this color
#508B4D is a medium-dark, moderately saturated green. In OKLCH its lightness is 58%, its chroma 0.111 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 0.014 away. Black text reads best on it, at 5.14:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.111) |
| Temperature | in between |
| Nearest name | Fern Green (#548D44) |
| Black text | 5.14:1 |
| White text | 4.08:1 |
Values
| HEX | #508B4D |
| RGB | rgb(80, 139, 77) |
| HSL | hsl(117, 29%, 42%) |
| OKLCH | oklch(58% 0.111 143) |
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 #508B4D | 4.08:1 | AA large text | Lc -73.4 | Content text, not long reading |
| Black text on #508B4D | 5.14:1 | AA | Lc 36.2 | Non-text elements, placeholder text |
| #508B4D text on white | 4.08:1 | AA large text | Lc 67.9 | Content text, not long reading |
| #508B4D text on black | 5.14:1 | AA | Lc -33.8 | 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 600.
-
Step 50
50
#F3F7F3
oklch(97.2% 0.007 145.5)
-
Step 100
100
#E4ECE4
oklch(93.5% 0.014 145.5)
-
Step 200
200
#CFDECE
oklch(88.5% 0.027 143.6)
-
Step 300
300
#AEC9AC
oklch(80.8% 0.05 143.2)
-
Step 400
400
#83AE80
oklch(70.7% 0.081 143.1)
-
Step 500
500
#639960
oklch(63% 0.101 143.1)
-
Step 600
600 (this color)
#508B4D
oklch(58% 0.111 143)
-
Step 700
700
#3A6F37
oklch(49% 0.103 142.8)
-
Step 800
800
#305B2E
oklch(42.8% 0.086 143)
-
Step 900
900
#2B4B29
oklch(37.8% 0.068 142.8)
-
Step 950
950
#1A2C19
oklch(27.1% 0.042 143.1)
#508B4D 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) | #8E8148 | 0.083 |
| Deuteranopia (no green cones) | #857B51 | 0.082 |
| Tritanopia (no blue cones) | #4A887C | 0.070 |
| Achromatopsia (no color) | #7E7E7E | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #508B4D
#508B4D
oklch(58% 0.111 143)
- #9A63A0
#9A63A0
oklch(58.1% 0.11 323.4)
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 #508B4D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern Green #548D44 ΔE 0.014
- Light Forest Green #4F9153 ΔE 0.017
- Dark Sage #598556 ΔE 0.027
- Sea Green #2E8B57 ΔE 0.028
- Moss Green #658B38 ΔE 0.029
- Swamp #698339 ΔE 0.034
- Mossy Green #638B27 ΔE 0.039
- Viridian #1E9167 ΔE 0.040
Use #508B4D 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.