#3F855B
Closest named color: Sea Green (#2E8B57). oklch(55.9% 0.097 155.2), rgb(63, 133, 91).
Aa
Black text reads best on this color (4.71:1).
About this color
#3F855B is a medium-dark, moderately saturated green. In OKLCH its lightness is 56%, its chroma 0.097 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 0.024 away. Black text reads best on it, at 4.71:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.097) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.71:1 |
| White text | 4.45:1 |
Values
| HEX | #3F855B |
| RGB | rgb(63, 133, 91) |
| HSL | hsl(144, 36%, 38%) |
| OKLCH | oklch(55.9% 0.097 155.2) |
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 #3F855B | 4.45:1 | AA large text | Lc -76.2 | Fine for body text |
| Black text on #3F855B | 4.71:1 | AA | Lc 33.4 | Non-text elements, placeholder text |
| #3F855B text on white | 4.45:1 | AA large text | Lc 70.7 | Content text, not long reading |
| #3F855B text on black | 4.71:1 | AA | Lc -31.0 | 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
#ABC9B5
oklch(80.8% 0.043 156.1)
-
Step 400
400
#7DAE8E
oklch(70.7% 0.07 155.6)
-
Step 500
500
#5A9A72
oklch(63.2% 0.09 155.4)
-
Step 600
600 (this color)
#3F855B
oklch(55.9% 0.097 155.2)
-
Step 700
700
#2F704A
oklch(49.2% 0.091 155.3)
-
Step 800
800
#285B3D
oklch(42.7% 0.075 155.6)
-
Step 900
900
#264B34
oklch(37.8% 0.058 155.1)
-
Step 950
950
#172C1F
oklch(27.1% 0.037 155.9)
#3F855B 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) | #857C58 | 0.087 |
| Deuteranopia (no green cones) | #7A755E | 0.084 |
| Tritanopia (no blue cones) | #2C847A | 0.047 |
| Achromatopsia (no color) | #777777 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F855B
#3F855B
oklch(55.9% 0.097 155.2)
- #975E8B
#975E8B
oklch(56% 0.096 334.8)
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 #3F855B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.024
- Dark Sage #598556 ΔE 0.026
- Viridian #1E9167 ΔE 0.036
- Light Forest Green #4F9153 ΔE 0.045
- Fern Green #548D44 ΔE 0.047
- Jungle Green #048243 ΔE 0.049
- Military Green #667C3E ΔE 0.049
- Swamp #698339 ΔE 0.054
Use #3F855B 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.