#4EC66B
Closest named color: Dark Mint (#48C072). oklch(73.7% 0.168 148.6), rgb(78, 198, 107).
Aa
Black text reads best on this color (9.61:1).
About this color
#4EC66B is a medium-light, vivid green. In OKLCH its lightness is 74%, its chroma 0.168 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Mint (#48C072), ΔE 0.022 away. Black text reads best on it, at 9.61:1.
| Hue family | Greens |
| Lightness | medium-light (74%) |
| Chroma | vivid (0.168) |
| Temperature | in between |
| Nearest name | Dark Mint (#48C072) |
| Black text | 9.61:1 |
| White text | 2.18:1 |
Values
| HEX | #4EC66B |
| RGB | rgb(78, 198, 107) |
| HSL | hsl(135, 51%, 54%) |
| OKLCH | oklch(73.7% 0.168 148.6) |
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 #4EC66B | 2.18:1 | Fails | Lc -47.3 | Large or bold text, headings |
| Black text on #4EC66B | 9.61:1 | AAA | Lc 61.3 | Content text, not long reading |
| #4EC66B text on white | 2.18:1 | Fails | Lc 42.6 | Non-text elements, placeholder text |
| #4EC66B text on black | 9.61:1 | AAA | Lc -59.6 | 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
#EFF8F0
oklch(97% 0.014 148.8)
-
Step 100
100
#DDF0DF
oklch(93.6% 0.03 148.4)
-
Step 200
200
#C0E4C4
oklch(88.4% 0.058 148.2)
-
Step 300
300
#90D49B
oklch(81% 0.105 148.7)
-
Step 400
400 (this color)
#4EC66B
oklch(73.7% 0.168 148.6)
-
Step 500
500
#00A545
oklch(63% 0.179 148.7)
-
Step 600
600
#008B39
oklch(55.6% 0.158 148.7)
-
Step 700
700
#00752E
oklch(49.1% 0.14 148.5)
-
Step 800
800
#006025
oklch(42.7% 0.121 148.7)
-
Step 900
900
#00501D
oklch(37.6% 0.108 148.5)
-
Step 950
950
#00300F
oklch(27% 0.076 148.8)
#4EC66B 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) | #C8B664 | 0.136 |
| Deuteranopia (no green cones) | #B8AB71 | 0.134 |
| Tritanopia (no blue cones) | #2DC2B0 | 0.096 |
| Achromatopsia (no color) | #AFAFAF | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4EC66B
#4EC66B
oklch(73.7% 0.168 148.6)
- #E280DE
#E280DE
oklch(73.8% 0.167 328.6)
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 #4EC66B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Mint #48C072 ΔE 0.022
- Algae Green #21C36F ΔE 0.024
- Dark Mint Green #20C073 ΔE 0.031
- Seaweed #18D17B ΔE 0.032
- Soft Green #6FC276 ΔE 0.034
- Greenblue #23C48B ΔE 0.043
- Turtle Green #75B84F ΔE 0.045
- Cool Green #33B864 ΔE 0.045
Use #4EC66B 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.