#3FA78A
Closest named color: Greeny Blue (#42B395). oklch(66% 0.105 171.4), rgb(63, 167, 138).
Aa
Black text reads best on this color (7.10:1).
About this color
#3FA78A is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 66%, its chroma 0.105 and its hue 171°. Its hue sits on the cool side of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.035 away. Black text reads best on it, at 7.10:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.105) |
| Temperature | cool |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 7.10:1 |
| White text | 2.95:1 |
Values
| HEX | #3FA78A |
| RGB | rgb(63, 167, 138) |
| HSL | hsl(163, 45%, 45%) |
| OKLCH | oklch(66% 0.105 171.4) |
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 #3FA78A | 2.95:1 | Fails | Lc -61.1 | Content text, not long reading |
| Black text on #3FA78A | 7.10:1 | AAA | Lc 48.3 | Large or bold text, headings |
| #3FA78A text on white | 2.95:1 | Fails | Lc 55.8 | Large or bold text, headings |
| #3FA78A text on black | 7.10:1 | AAA | Lc -46.0 | Large or bold text, headings |
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
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E1EDE8
oklch(93.6% 0.014 169.2)
-
Step 200
200
#C7E0D7
oklch(88.6% 0.029 172)
-
Step 300
300
#A0CCBC
oklch(80.9% 0.052 170.8)
-
Step 400
400
#68B29A
oklch(70.8% 0.083 171)
-
Step 500
500 (this color)
#3FA78A
oklch(66% 0.105 171.4)
-
Step 600
600
#00876B
oklch(55.5% 0.108 171.4)
-
Step 700
700
#00725A
oklch(49.2% 0.096 171.5)
-
Step 800
800
#005D49
oklch(42.6% 0.083 171.6)
-
Step 900
900
#0B4D3D
oklch(37.7% 0.068 171.7)
-
Step 950
950
#0B2D24
oklch(26.9% 0.043 172.4)
#3FA78A 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) | #A29C89 | 0.109 |
| Deuteranopia (no green cones) | #93928C | 0.103 |
| Tritanopia (no blue cones) | #00A89F | 0.033 |
| Achromatopsia (no color) | #969696 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FA78A
#3FA78A
oklch(66% 0.105 171.4)
- #C3769A
#C3769A
oklch(65.9% 0.106 350.9)
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 #3FA78A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.035
- Persian Green #2A9D8F ΔE 0.037
- Dull Teal #5F9E8F ΔE 0.038
- Jade #1FA774 ΔE 0.038
- Tea #65AB7C ΔE 0.039
- Grey Teal #5E9B8A ΔE 0.041
- Dark Seafoam Green #3EAF76 ΔE 0.042
- Bluey Green #2BB179 ΔE 0.045
Use #3FA78A 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.