#3FB97B
Closest named color: Medium Sea Green (#3CB371). oklch(70.2% 0.142 157.1), rgb(63, 185, 123).
Aa
Black text reads best on this color (8.43:1).
About this color
#3FB97B is a medium-light, vivid green. In OKLCH its lightness is 70%, its chroma 0.142 and its hue 157°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Sea Green (#3CB371), ΔE 0.019 away. Black text reads best on it, at 8.43:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.142) |
| Temperature | in between |
| Nearest name | Medium Sea Green (#3CB371) |
| Black text | 8.43:1 |
| White text | 2.48:1 |
Values
| HEX | #3FB97B |
| RGB | rgb(63, 185, 123) |
| HSL | hsl(150, 49%, 49%) |
| OKLCH | oklch(70.2% 0.142 157.1) |
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 #3FB97B | 2.48:1 | Fails | Lc -53.6 | Large or bold text, headings |
| Black text on #3FB97B | 8.43:1 | AAA | Lc 55.5 | Large or bold text, headings |
| #3FB97B text on white | 2.48:1 | Fails | Lc 48.5 | Large or bold text, headings |
| #3FB97B text on black | 8.43:1 | AAA | Lc -53.5 | 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 400.
-
Step 50
50
#EFF8F2
oklch(97.1% 0.012 157)
-
Step 100
100
#DDEFE3
oklch(93.5% 0.025 156.7)
-
Step 200
200
#BFE3CC
oklch(88.4% 0.049 157.2)
-
Step 300
300
#90D2AA
oklch(80.8% 0.088 157.2)
-
Step 400
400 (this color)
#3FB97B
oklch(70.2% 0.142 157.1)
-
Step 500
500
#00A364
oklch(63% 0.149 157.4)
-
Step 600
600
#008953
oklch(55.5% 0.131 157.3)
-
Step 700
700
#007445
oklch(49.2% 0.117 157)
-
Step 800
800
#005F38
oklch(42.7% 0.101 157.3)
-
Step 900
900
#004F2E
oklch(37.6% 0.089 157.5)
-
Step 950
950
#002F19
oklch(26.9% 0.064 157.1)
#3FB97B 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) | #B8AB77 | 0.130 |
| Deuteranopia (no green cones) | #A8A07F | 0.126 |
| Tritanopia (no blue cones) | #00B8A9 | 0.065 |
| Achromatopsia (no color) | #A4A4A4 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FB97B
#3FB97B
oklch(70.2% 0.142 157.1)
- #D67ABF
#D67ABF
oklch(70.2% 0.142 337)
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 #3FB97B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Sea Green #3CB371 ΔE 0.019
- Dark Seafoam #1FB57A ΔE 0.020
- Green Teal #0CB577 ΔE 0.024
- Green Blue #01C08D ΔE 0.027
- Bluey Green #2BB179 ΔE 0.027
- Dark Mint #48C072 ΔE 0.027
- Dark Mint Green #20C073 ΔE 0.028
- Dark Seafoam Green #3EAF76 ΔE 0.029
Use #3FB97B 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.