#3F8052
Closest named color: Sea Green (#2E8B57). oklch(54.4% 0.098 151.4), rgb(63, 128, 82).
Aa
White text reads best on this color (4.75:1).
About this color
#3F8052 is a medium-dark, moderately saturated green. In OKLCH its lightness is 54%, its chroma 0.098 and its hue 151°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.033 away. White text reads best on it, at 4.75:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.098) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.42:1 |
| White text | 4.75:1 |
Values
| HEX | #3F8052 |
| RGB | rgb(63, 128, 82) |
| HSL | hsl(138, 34%, 37%) |
| OKLCH | oklch(54.4% 0.098 151.4) |
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 #3F8052 | 4.75:1 | AA | Lc -78.2 | Fine for body text |
| Black text on #3F8052 | 4.42:1 | AA large text | Lc 31.3 | Non-text elements, placeholder text |
| #3F8052 text on white | 4.75:1 | AA | Lc 72.8 | Content text, not long reading |
| #3F8052 text on black | 4.42:1 | AA large text | Lc -28.9 | 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
#E4ECE6
oklch(93.5% 0.012 153.7)
-
Step 200
200
#CEDED1
oklch(88.5% 0.025 151.1)
-
Step 300
300
#ADC9B3
oklch(80.9% 0.043 151.7)
-
Step 400
400
#80AE8A
oklch(70.8% 0.072 150.9)
-
Step 500
500
#5E996E
oklch(63% 0.09 151.8)
-
Step 600
600 (this color)
#3F8052
oklch(54.4% 0.098 151.4)
-
Step 700
700
#346F46
oklch(49% 0.09 151.7)
-
Step 800
800
#2C5B39
oklch(42.8% 0.077 151)
-
Step 900
900
#284B31
oklch(37.8% 0.06 150.9)
-
Step 950
950
#182C1D
oklch(27.1% 0.038 151.1)
#3F8052 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) | #80774F | 0.083 |
| Deuteranopia (no green cones) | #777055 | 0.083 |
| Tritanopia (no blue cones) | #317E74 | 0.053 |
| Achromatopsia (no color) | #737373 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F8052
#3F8052
oklch(54.4% 0.098 151.4)
- #91598A
#91598A
oklch(54.4% 0.1 331.4)
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 #3F8052, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.033
- Dark Sage #598556 ΔE 0.033
- Jungle Green #048243 ΔE 0.040
- Military Green #667C3E ΔE 0.044
- Viridian #1E9167 ΔE 0.050
- Muddy Green #657432 ΔE 0.053
- Fern Green #548D44 ΔE 0.053
- Swamp #698339 ΔE 0.054
Use #3F8052 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.