#3F855A
Closest named color: Sea Green (#2E8B57). oklch(55.9% 0.098 154.6), rgb(63, 133, 90).
Aa
Black text reads best on this color (4.71:1).
About this color
#3F855A is a medium-dark, moderately saturated green. In OKLCH its lightness is 56%, its chroma 0.098 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.023 away. Black text reads best on it, at 4.71:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.098) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.71:1 |
| White text | 4.45:1 |
Values
| HEX | #3F855A |
| RGB | rgb(63, 133, 90) |
| HSL | hsl(143, 36%, 38%) |
| OKLCH | oklch(55.9% 0.098 154.6) |
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 #3F855A | 4.45:1 | AA large text | Lc -76.2 | Fine for body text |
| Black text on #3F855A | 4.71:1 | AA | Lc 33.4 | Non-text elements, placeholder text |
| #3F855A text on white | 4.45:1 | AA large text | Lc 70.7 | Content text, not long reading |
| #3F855A text on black | 4.71:1 | AA | Lc -30.9 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E4ECE6
oklch(93.5% 0.012 153.7)
-
Step 200
200
#CDDED2
oklch(88.4% 0.024 155.1)
-
Step 300
300
#ABC9B4
oklch(80.8% 0.044 154.8)
-
Step 400
400
#7DAE8D
oklch(70.7% 0.071 154.7)
-
Step 500
500
#5B9A71
oklch(63.2% 0.09 154.4)
-
Step 600
600 (this color)
#3F855A
oklch(55.9% 0.098 154.6)
-
Step 700
700
#2F7049
oklch(49.2% 0.092 154.6)
-
Step 800
800
#285B3C
oklch(42.7% 0.076 154.7)
-
Step 900
900
#264B33
oklch(37.8% 0.06 154)
-
Step 950
950
#172C1E
oklch(27.1% 0.038 154)
#3F855A 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) | #857C57 | 0.087 |
| Deuteranopia (no green cones) | #7B755D | 0.085 |
| Tritanopia (no blue cones) | #2D847A | 0.049 |
| Achromatopsia (no color) | #777777 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F855A
#3F855A
oklch(55.9% 0.098 154.6)
- #975D8B
#975D8B
oklch(55.8% 0.098 334.7)
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 #3F855A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.023
- Dark Sage #598556 ΔE 0.026
- Viridian #1E9167 ΔE 0.036
- Light Forest Green #4F9153 ΔE 0.044
- Fern Green #548D44 ΔE 0.046
- Jungle Green #048243 ΔE 0.048
- Military Green #667C3E ΔE 0.049
- Swamp #698339 ΔE 0.053
Use #3F855A 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.