#4EC155
Closest named color: Algae Green (#21C36F). oklch(72.1% 0.181 144.4), rgb(78, 193, 85).
Aa
Black text reads best on this color (9.08:1).
About this color
#4EC155 is a medium-light, vivid green. In OKLCH its lightness is 72%, its chroma 0.181 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Algae Green (#21C36F), ΔE 0.030 away. Black text reads best on it, at 9.08:1.
| Hue family | Greens |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.181) |
| Temperature | in between |
| Nearest name | Algae Green (#21C36F) |
| Black text | 9.08:1 |
| White text | 2.31:1 |
Values
| HEX | #4EC155 |
| RGB | rgb(78, 193, 85) |
| HSL | hsl(124, 48%, 53%) |
| OKLCH | oklch(72.1% 0.181 144.4) |
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 #4EC155 | 2.31:1 | Fails | Lc -50.1 | Large or bold text, headings |
| Black text on #4EC155 | 9.08:1 | AAA | Lc 58.7 | Large or bold text, headings |
| #4EC155 text on white | 2.31:1 | Fails | Lc 45.2 | Large or bold text, headings |
| #4EC155 text on black | 9.08:1 | AAA | Lc -56.9 | 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
#F0F8EF
oklch(97.1% 0.015 142.2)
-
Step 100
100
#DDF0DD
oklch(93.6% 0.032 145.3)
-
Step 200
200
#C1E5C0
oklch(88.6% 0.063 144.3)
-
Step 300
300
#92D492
oklch(80.9% 0.113 144.4)
-
Step 400
400 (this color)
#4EC155
oklch(72.1% 0.181 144.4)
-
Step 500
500
#00A627
oklch(63% 0.201 144.5)
-
Step 600
600
#008C1F
oklch(55.6% 0.178 144.4)
-
Step 700
700
#007618
oklch(49.1% 0.157 144.4)
-
Step 800
800
#006112
oklch(42.8% 0.137 144.4)
-
Step 900
900
#00510E
oklch(37.8% 0.121 144.5)
-
Step 950
950
#003005
oklch(26.9% 0.086 144.4)
#4EC155 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) | #C4B14B | 0.134 |
| Deuteranopia (no green cones) | #B6A75D | 0.134 |
| Tritanopia (no blue cones) | #37BCA9 | 0.112 |
| Achromatopsia (no color) | #AAAAAA | 0.182 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4EC155
#4EC155
oklch(72.1% 0.181 144.4)
- #DB78E3
#DB78E3
oklch(72% 0.181 324.4)
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 #4EC155, closest first.
No curated palette has a color within ΔE 0.04 of #4EC155.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Algae Green #21C36F ΔE 0.030
- Shamrock Green #02C14D ΔE 0.030
- Leafy Green #51B73B ΔE 0.031
- Dark Mint #48C072 ΔE 0.033
- Dark Mint Green #20C073 ΔE 0.037
- Turtle Green #75B84F ΔE 0.037
- Cool Green #33B864 ΔE 0.038
- Frog Green #58BC08 ΔE 0.042
Use #4EC155 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.