#3F866B
Closest named color: Dark Sage (#598556). oklch(56.6% 0.084 166.2), rgb(63, 134, 107).
Aa
Black text reads best on this color (4.83:1).
About this color
#3F866B is a medium-dark, moderately saturated green. In OKLCH its lightness is 57%, its chroma 0.084 and its hue 166°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.035 away. Black text reads best on it, at 4.83:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.084) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.83:1 |
| White text | 4.34:1 |
Values
| HEX | #3F866B |
| RGB | rgb(63, 134, 107) |
| HSL | hsl(157, 36%, 39%) |
| OKLCH | oklch(56.6% 0.084 166.2) |
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 #3F866B | 4.34:1 | AA large text | Lc -75.4 | Fine for body text |
| Black text on #3F866B | 4.83:1 | AA | Lc 34.2 | Non-text elements, placeholder text |
| #3F866B text on white | 4.34:1 | AA large text | Lc 69.9 | Content text, not long reading |
| #3F866B text on black | 4.83:1 | AA | Lc -31.8 | 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
#F2F6F5
oklch(97% 0.004 179.7)
-
Step 100
100
#E3ECE8
oklch(93.5% 0.011 167.8)
-
Step 200
200
#CDDED6
oklch(88.6% 0.021 166)
-
Step 300
300
#ABC9BB
oklch(81% 0.038 165.6)
-
Step 400
400
#7CAD98
oklch(70.7% 0.061 166.3)
-
Step 500
500
#59997F
oklch(63.2% 0.078 166)
-
Step 600
600 (this color)
#3F866B
oklch(56.6% 0.084 166.2)
-
Step 700
700
#2D6F57
oklch(49.2% 0.078 166.4)
-
Step 800
800
#275A47
oklch(42.6% 0.064 166.5)
-
Step 900
900
#254A3B
oklch(37.6% 0.05 165.6)
-
Step 950
950
#162B23
oklch(26.8% 0.031 167.7)
#3F866B 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) | #837E6A | 0.083 |
| Deuteranopia (no green cones) | #79766D | 0.081 |
| Tritanopia (no blue cones) | #24867E | 0.031 |
| Achromatopsia (no color) | #797979 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F866B
#3F866B
oklch(56.6% 0.084 166.2)
- #9A6281
#9A6281
oklch(56.7% 0.083 345.8)
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 #3F866B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.035
- Viridian #1E9167 ΔE 0.039
- Sea Green #2E8B57 ΔE 0.040
- Dusty Teal #4C9085 ΔE 0.046
- Slate Green #658D6D ΔE 0.047
- Dark Cyan #008B8B ΔE 0.048
- Teal #008080 ΔE 0.050
- Ocean Green #3D9973 ΔE 0.056
Use #3F866B 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.