#4EB273
Closest named color: Medium Sea Green (#3CB371). oklch(68.8% 0.133 153.4), rgb(78, 178, 115).
Aa
Black text reads best on this color (7.93:1).
About this color
#4EB273 is a medium-light, moderately saturated green. In OKLCH its lightness is 69%, its chroma 0.133 and its hue 153°. 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 7.93:1.
| Hue family | Greens |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.133) |
| Temperature | in between |
| Nearest name | Medium Sea Green (#3CB371) |
| Black text | 7.93:1 |
| White text | 2.64:1 |
Values
| HEX | #4EB273 |
| RGB | rgb(78, 178, 115) |
| HSL | hsl(142, 39%, 50%) |
| OKLCH | oklch(68.8% 0.133 153.4) |
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 #4EB273 | 2.64:1 | Fails | Lc -56.4 | Large or bold text, headings |
| Black text on #4EB273 | 7.93:1 | AAA | Lc 52.8 | Large or bold text, headings |
| #4EB273 text on white | 2.64:1 | Fails | Lc 51.2 | Large or bold text, headings |
| #4EB273 text on black | 7.93:1 | AAA | Lc -50.7 | 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
#DEEFE3
oklch(93.6% 0.024 155.1)
-
Step 200
200
#C3E3CB
oklch(88.6% 0.047 152.9)
-
Step 300
300
#97D1A8
oklch(81% 0.083 153.5)
-
Step 400
400 (this color)
#4EB273
oklch(68.8% 0.133 153.4)
-
Step 500
500
#00A458
oklch(63% 0.161 153.3)
-
Step 600
600
#008A49
oklch(55.5% 0.142 153.3)
-
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
#003015
oklch(27.1% 0.07 152.9)
#4EB273 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) | #B2A56F | 0.116 |
| Deuteranopia (no green cones) | #A49B77 | 0.114 |
| Tritanopia (no blue cones) | #31B0A2 | 0.068 |
| Achromatopsia (no color) | #9F9F9F | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4EB273
#4EB273
oklch(68.8% 0.133 153.4)
- #CB7ABD
#CB7ABD
oklch(68.8% 0.132 333.5)
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 #4EB273, 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
- Dark Seafoam Green #3EAF76 ΔE 0.016
- Algae #54AC68 ΔE 0.018
- Bluey Green #2BB179 ΔE 0.021
- Dark Seafoam #1FB57A ΔE 0.023
- Boring Green #63B365 ΔE 0.023
- Seaweed Green #35AD6B ΔE 0.025
- Green Teal #0CB577 ΔE 0.026
Use #4EB273 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.