#508C55
Closest named color: Light Forest Green (#4F9153). oklch(58.5% 0.104 145.9), rgb(80, 140, 85).
Aa
Black text reads best on this color (5.22:1).
About this color
#508C55 is a medium-dark, moderately saturated green. In OKLCH its lightness is 58%, its chroma 0.104 and its hue 146°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Forest Green (#4F9153), ΔE 0.016 away. Black text reads best on it, at 5.22:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.104) |
| Temperature | in between |
| Nearest name | Light Forest Green (#4F9153) |
| Black text | 5.22:1 |
| White text | 4.02:1 |
Values
| HEX | #508C55 |
| RGB | rgb(80, 140, 85) |
| HSL | hsl(125, 27%, 43%) |
| OKLCH | oklch(58.5% 0.104 145.9) |
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 #508C55 | 4.02:1 | AA large text | Lc -72.8 | Content text, not long reading |
| Black text on #508C55 | 5.22:1 | AA | Lc 36.7 | Non-text elements, placeholder text |
| #508C55 text on white | 4.02:1 | AA large text | Lc 67.3 | Content text, not long reading |
| #508C55 text on black | 5.22:1 | AA | Lc -34.3 | 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
#E4ECE5
oklch(93.5% 0.013 149.2)
-
Step 200
200
#CFDECF
oklch(88.5% 0.026 145.4)
-
Step 300
300
#AEC9AF
oklch(80.9% 0.046 146.1)
-
Step 400
400
#83AE85
oklch(70.8% 0.075 145.9)
-
Step 500
500
#629966
oklch(63.1% 0.095 146)
-
Step 600
600 (this color)
#508C55
oklch(58.5% 0.104 145.9)
-
Step 700
700
#396F3E
oklch(49.1% 0.096 145.9)
-
Step 800
800
#2F5B33
oklch(42.8% 0.081 145.9)
-
Step 900
900
#2B4A2D
oklch(37.6% 0.061 145.7)
-
Step 950
950
#192C1B
oklch(27.1% 0.04 146.9)
#508C55 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) | #8E8251 | 0.082 |
| Deuteranopia (no green cones) | #857C58 | 0.081 |
| Tritanopia (no blue cones) | #48897E | 0.062 |
| Achromatopsia (no color) | #7F7F7F | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #508C55
#508C55
oklch(58.5% 0.104 145.9)
- #9B659D
#9B659D
oklch(58.4% 0.104 325.6)
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 #508C55, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Forest Green #4F9153 ΔE 0.016
- Fern Green #548D44 ΔE 0.022
- Dark Sage #598556 ΔE 0.023
- Sea Green #2E8B57 ΔE 0.028
- Moss Green #658B38 ΔE 0.035
- Viridian #1E9167 ΔE 0.035
- Swamp #698339 ΔE 0.039
- Slate Green #658D6D ΔE 0.044
Use #508C55 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.