#4EB571
Closest named color: Medium Sea Green (#3CB371). oklch(69.5% 0.139 152.2), rgb(78, 181, 113).
Aa
Black text reads best on this color (8.17:1).
About this color
#4EB571 is a medium-light, moderately saturated green. In OKLCH its lightness is 69%, its chroma 0.139 and its hue 152°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Sea Green (#3CB371), ΔE 0.014 away. Black text reads best on it, at 8.17:1.
| Hue family | Greens |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.139) |
| Temperature | in between |
| Nearest name | Medium Sea Green (#3CB371) |
| Black text | 8.17:1 |
| White text | 2.56:1 |
Values
| HEX | #4EB571 |
| RGB | rgb(78, 181, 113) |
| HSL | hsl(140, 41%, 51%) |
| OKLCH | oklch(69.5% 0.139 152.2) |
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 #4EB571 | 2.56:1 | Fails | Lc -55.1 | Large or bold text, headings |
| Black text on #4EB571 | 8.17:1 | AAA | Lc 54.0 | Large or bold text, headings |
| #4EB571 text on white | 2.56:1 | Fails | Lc 50.0 | Large or bold text, headings |
| #4EB571 text on black | 8.17:1 | AAA | Lc -51.9 | 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
#F0F8F2
oklch(97.1% 0.012 153.7)
-
Step 100
100
#DEEFE2
oklch(93.6% 0.025 152.9)
-
Step 200
200
#C2E3CA
oklch(88.5% 0.049 152.6)
-
Step 300
300
#96D1A5
oklch(80.8% 0.087 152)
-
Step 400
400 (this color)
#4EB571
oklch(69.5% 0.139 152.2)
-
Step 500
500
#00A554
oklch(63.2% 0.166 152.1)
-
Step 600
600
#008A46
oklch(55.5% 0.145 152.3)
-
Step 700
700
#00743A
oklch(49% 0.128 152.4)
-
Step 800
800
#00602E
oklch(42.8% 0.113 152)
-
Step 900
900
#005026
oklch(37.8% 0.099 152.3)
-
Step 950
950
#003014
oklch(27.1% 0.071 152.1)
#4EB571 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) | #B5A76C | 0.119 |
| Deuteranopia (no green cones) | #A79E75 | 0.116 |
| Tritanopia (no blue cones) | #31B3A4 | 0.073 |
| Achromatopsia (no color) | #A1A1A1 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4EB571
#4EB571
oklch(69.5% 0.139 152.2)
- #CE7AC3
#CE7AC3
oklch(69.4% 0.14 331.9)
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 #4EB571, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Sea Green #3CB371 ΔE 0.014
- Boring Green #63B365 ΔE 0.019
- Dark Seafoam #1FB57A ΔE 0.024
- Dark Seafoam Green #3EAF76 ΔE 0.024
- Algae #54AC68 ΔE 0.025
- Bluey Green #2BB179 ΔE 0.027
- Green Teal #0CB577 ΔE 0.027
- Cool Green #33B864 ΔE 0.028
Use #4EB571 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.