#3F7F4E
Closest named color: Sea Green (#2E8B57). oklch(54.1% 0.101 149.6), rgb(63, 127, 78).
Aa
White text reads best on this color (4.81:1).
About this color
#3F7F4E is a medium-dark, moderately saturated green. In OKLCH its lightness is 54%, its chroma 0.101 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.035 away. White text reads best on it, at 4.81:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.101) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.35:1 |
| White text | 4.81:1 |
Values
| HEX | #3F7F4E |
| RGB | rgb(63, 127, 78) |
| HSL | hsl(134, 34%, 37%) |
| OKLCH | oklch(54.1% 0.101 149.6) |
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 #3F7F4E | 4.81:1 | AA | Lc -78.7 | Fine for body text |
| Black text on #3F7F4E | 4.35:1 | AA large text | Lc 30.8 | Non-text elements, placeholder text |
| #3F7F4E text on white | 4.81:1 | AA | Lc 73.3 | Content text, not long reading |
| #3F7F4E text on black | 4.35:1 | AA large text | Lc -28.4 | Dividers and decoration only |
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
#CEDED0
oklch(88.5% 0.026 149.1)
-
Step 300
300
#ADC9B1
oklch(80.8% 0.045 149.3)
-
Step 400
400
#80AE88
oklch(70.7% 0.074 149.5)
-
Step 500
500
#5F996B
oklch(63% 0.092 149.7)
-
Step 600
600 (this color)
#3F7F4E
oklch(54.1% 0.101 149.6)
-
Step 700
700
#356F43
oklch(49% 0.093 149.7)
-
Step 800
800
#2D5B37
oklch(42.8% 0.078 149.2)
-
Step 900
900
#294B30
oklch(37.9% 0.061 149.4)
-
Step 950
950
#182C1C
oklch(27.1% 0.039 149.5)
#3F7F4E 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) | #80764B | 0.084 |
| Deuteranopia (no green cones) | #776F51 | 0.083 |
| Tritanopia (no blue cones) | #337D73 | 0.057 |
| Achromatopsia (no color) | #727272 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F7F4E
#3F7F4E
oklch(54.1% 0.101 149.6)
- #8F588B
#8F588B
oklch(54% 0.101 329.5)
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 #3F7F4E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.035
- Dark Sage #598556 ΔE 0.036
- Jungle Green #048243 ΔE 0.037
- Military Green #667C3E ΔE 0.044
- Muddy Green #657432 ΔE 0.050
- Swamp #698339 ΔE 0.054
- Viridian #1E9167 ΔE 0.054
- Fern Green #548D44 ΔE 0.054
Use #3F7F4E 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.