#3FB770
Closest named color: Medium Sea Green (#3CB371). oklch(69.5% 0.149 153.6), rgb(63, 183, 112).
Aa
Black text reads best on this color (8.21:1).
About this color
#3FB770 is a medium-light, vivid green. In OKLCH its lightness is 70%, its chroma 0.149 and its hue 154°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Sea Green (#3CB371), ΔE 0.013 away. Black text reads best on it, at 8.21:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.149) |
| Temperature | in between |
| Nearest name | Medium Sea Green (#3CB371) |
| Black text | 8.21:1 |
| White text | 2.55:1 |
Values
| HEX | #3FB770 |
| RGB | rgb(63, 183, 112) |
| HSL | hsl(145, 49%, 48%) |
| OKLCH | oklch(69.5% 0.149 153.6) |
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 #3FB770 | 2.55:1 | Fails | Lc -54.8 | Large or bold text, headings |
| Black text on #3FB770 | 8.21:1 | AAA | Lc 54.3 | Large or bold text, headings |
| #3FB770 text on white | 2.55:1 | Fails | Lc 49.7 | Large or bold text, headings |
| #3FB770 text on black | 8.21:1 | AAA | Lc -52.3 | 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
#DDEFE2
oklch(93.5% 0.026 154.5)
-
Step 200
200
#C0E4CA
oklch(88.6% 0.052 153.9)
-
Step 300
300
#91D3A5
oklch(81% 0.093 153.5)
-
Step 400
400 (this color)
#3FB770
oklch(69.5% 0.149 153.6)
-
Step 500
500
#00A459
oklch(63% 0.16 153.6)
-
Step 600
600
#008A4A
oklch(55.6% 0.141 153.6)
-
Step 700
700
#00743D
oklch(49% 0.125 153.5)
-
Step 800
800
#005F31
oklch(42.6% 0.108 153.6)
-
Step 900
900
#005028
oklch(37.8% 0.097 153.4)
-
Step 950
950
#003016
oklch(27.1% 0.069 153.7)
#3FB770 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) | #B7A86B | 0.131 |
| Deuteranopia (no green cones) | #A79E75 | 0.127 |
| Tritanopia (no blue cones) | #00B5A5 | 0.075 |
| Achromatopsia (no color) | #A2A2A2 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FB770
#3FB770
oklch(69.5% 0.149 153.6)
- #D377C3
#D377C3
oklch(69.5% 0.148 333.8)
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 #3FB770, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Sea Green #3CB371 ΔE 0.013
- Cool Green #33B864 ΔE 0.018
- Dark Seafoam #1FB57A ΔE 0.020
- Green Teal #0CB577 ΔE 0.021
- Dark Mint Green #20C073 ΔE 0.026
- Boring Green #63B365 ΔE 0.026
- Bluey Green #2BB179 ΔE 0.026
- Jade Green #2BAF6A ΔE 0.027
Use #3FB770 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.