#3FA178
Closest named color: Ocean Green (#3D9973). oklch(64% 0.111 162.7), rgb(63, 161, 120).
Aa
Black text reads best on this color (6.58:1).
About this color
#3FA178 is a medium-light, moderately saturated green. In OKLCH its lightness is 64%, its chroma 0.111 and its hue 163°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Ocean Green (#3D9973), ΔE 0.023 away. Black text reads best on it, at 6.58:1.
| Hue family | Greens |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.111) |
| Temperature | in between |
| Nearest name | Ocean Green (#3D9973) |
| Black text | 6.58:1 |
| White text | 3.19:1 |
Values
| HEX | #3FA178 |
| RGB | rgb(63, 161, 120) |
| HSL | hsl(155, 44%, 44%) |
| OKLCH | oklch(64% 0.111 162.7) |
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 #3FA178 | 3.19:1 | AA large text | Lc -64.2 | Content text, not long reading |
| Black text on #3FA178 | 6.58:1 | AA | Lc 45.2 | Large or bold text, headings |
| #3FA178 text on white | 3.19:1 | AA large text | Lc 58.8 | Large or bold text, headings |
| #3FA178 text on black | 6.58:1 | AA | Lc -42.9 | 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 500.
-
Step 50
50
#F1F7F4
oklch(97.1% 0.007 164.9)
-
Step 100
100
#E1EDE7
oklch(93.5% 0.015 164.7)
-
Step 200
200
#C8E0D3
oklch(88.5% 0.031 162.1)
-
Step 300
300
#A2CCB6
oklch(80.9% 0.054 162.1)
-
Step 400
400
#6BB291
oklch(70.7% 0.087 163)
-
Step 500
500 (this color)
#3FA178
oklch(64% 0.111 162.7)
-
Step 600
600
#00895E
oklch(55.7% 0.121 162.5)
-
Step 700
700
#00734E
oklch(49.1% 0.107 162.4)
-
Step 800
800
#005E40
oklch(42.6% 0.092 163.1)
-
Step 900
900
#114D36
oklch(37.6% 0.072 163)
-
Step 950
950
#0D2D20
oklch(26.9% 0.045 163.7)
#3FA178 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) | #9E9676 | 0.107 |
| Deuteranopia (no green cones) | #918C7B | 0.105 |
| Tritanopia (no blue cones) | #05A196 | 0.046 |
| Achromatopsia (no color) | #909090 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FA178
#3FA178
oklch(64% 0.111 162.7)
- #BA709E
#BA709E
oklch(64% 0.11 342.7)
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 #3FA178, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Green #3D9973 ΔE 0.023
- Jade #1FA774 ΔE 0.025
- Persian Green #2A9D8F ΔE 0.040
- Dark Seafoam Green #3EAF76 ΔE 0.043
- Seaweed Green #35AD6B ΔE 0.045
- Blue Green #0F9B8E ΔE 0.045
- Grey Teal #5E9B8A ΔE 0.046
- Tea #65AB7C ΔE 0.047
Use #3FA178 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.