#3F8F64
Closest named color: Viridian (#1E9167). oklch(58.8% 0.103 157.4), rgb(63, 143, 100).
Aa
Black text reads best on this color (5.32:1).
About this color
#3F8F64 is a medium-dark, moderately saturated green. In OKLCH its lightness is 59%, its chroma 0.103 and its hue 157°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Viridian (#1E9167), ΔE 0.018 away. Black text reads best on it, at 5.32:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.103) |
| Temperature | in between |
| Nearest name | Viridian (#1E9167) |
| Black text | 5.32:1 |
| White text | 3.94:1 |
Values
| HEX | #3F8F64 |
| RGB | rgb(63, 143, 100) |
| HSL | hsl(148, 39%, 40%) |
| OKLCH | oklch(58.8% 0.103 157.4) |
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 #3F8F64 | 3.94:1 | AA large text | Lc -72.1 | Content text, not long reading |
| Black text on #3F8F64 | 5.32:1 | AA | Lc 37.5 | Non-text elements, placeholder text |
| #3F8F64 text on white | 3.94:1 | AA large text | Lc 66.6 | Content text, not long reading |
| #3F8F64 text on black | 5.32:1 | AA | Lc -35.1 | 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
#E3EDE6
oklch(93.7% 0.014 155.6)
-
Step 200
200
#CCDFD2
oklch(88.6% 0.027 155.9)
-
Step 300
300
#A9CAB5
oklch(80.9% 0.046 157.3)
-
Step 400
400
#79AF8E
oklch(70.7% 0.075 157)
-
Step 500
500
#539B73
oklch(63.1% 0.095 157.8)
-
Step 600
600 (this color)
#3F8F64
oklch(58.8% 0.103 157.4)
-
Step 700
700
#26714B
oklch(49.2% 0.096 157.6)
-
Step 800
800
#225C3D
oklch(42.7% 0.08 157)
-
Step 900
900
#224B34
oklch(37.6% 0.061 157.1)
-
Step 950
950
#152C1F
oklch(27% 0.038 157.7)
#3F8F64 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) | #8E8561 | 0.095 |
| Deuteranopia (no green cones) | #837D67 | 0.093 |
| Tritanopia (no blue cones) | #258E84 | 0.049 |
| Achromatopsia (no color) | #808080 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F8F64
#3F8F64
oklch(58.8% 0.103 157.4)
- #A46493
#A46493
oklch(58.9% 0.103 337.3)
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 #3F8F64, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Viridian #1E9167 ΔE 0.018
- Sea Green #2E8B57 ΔE 0.025
- Light Forest Green #4F9153 ΔE 0.027
- Ocean Green #3D9973 ΔE 0.031
- Dark Sage #598556 ΔE 0.034
- Fern Green #548D44 ΔE 0.040
- Slate Green #658D6D ΔE 0.043
- Dusty Teal #4C9085 ΔE 0.052
Use #3F8F64 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.