#4BB66C
Closest named color: Medium Sea Green (#3CB371). oklch(69.5% 0.146 150.9), rgb(75, 182, 108).
Aa
Black text reads best on this color (8.20:1).
About this color
#4BB66C is a medium-light, vivid green. In OKLCH its lightness is 70%, its chroma 0.146 and its hue 151°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Sea Green (#3CB371), ΔE 0.016 away. Black text reads best on it, at 8.20:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.146) |
| Temperature | in between |
| Nearest name | Medium Sea Green (#3CB371) |
| Black text | 8.20:1 |
| White text | 2.55:1 |
Values
| HEX | #4BB66C |
| RGB | rgb(75, 182, 108) |
| HSL | hsl(139, 42%, 50%) |
| OKLCH | oklch(69.5% 0.146 150.9) |
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 #4BB66C | 2.55:1 | Fails | Lc -54.9 | Large or bold text, headings |
| Black text on #4BB66C | 8.20:1 | AAA | Lc 54.2 | Large or bold text, headings |
| #4BB66C text on white | 2.55:1 | Fails | Lc 49.8 | Large or bold text, headings |
| #4BB66C text on black | 8.20:1 | AAA | Lc -52.2 | 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
#F0F8F1
oklch(97.1% 0.013 149.3)
-
Step 100
100
#DEEFE1
oklch(93.6% 0.026 150.8)
-
Step 200
200
#C2E3C8
oklch(88.5% 0.051 150.5)
-
Step 300
300
#95D2A2
oklch(80.9% 0.092 150.5)
-
Step 400
400 (this color)
#4BB66C
oklch(69.5% 0.146 150.9)
-
Step 500
500
#00A54F
oklch(63.2% 0.171 150.8)
-
Step 600
600
#008B42
oklch(55.7% 0.15 151)
-
Step 700
700
#007536
oklch(49.2% 0.133 150.8)
-
Step 800
800
#00602B
oklch(42.8% 0.116 150.8)
-
Step 900
900
#005023
oklch(37.7% 0.102 150.9)
-
Step 950
950
#003012
oklch(27% 0.073 150.7)
#4BB66C 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) | #B7A867 | 0.123 |
| Deuteranopia (no green cones) | #A99E71 | 0.122 |
| Tritanopia (no blue cones) | #2CB3A4 | 0.080 |
| Achromatopsia (no color) | #A2A2A2 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4BB66C
#4BB66C
oklch(69.5% 0.146 150.9)
- #D079C7
#D079C7
oklch(69.7% 0.146 330.9)
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 #4BB66C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Sea Green #3CB371 ΔE 0.016
- Boring Green #63B365 ΔE 0.019
- Cool Green #33B864 ΔE 0.020
- Dark Seafoam #1FB57A ΔE 0.026
- Dark Pastel Green #56AE57 ΔE 0.027
- Green Teal #0CB577 ΔE 0.027
- Dark Mint #48C072 ΔE 0.028
- Algae #54AC68 ΔE 0.028
Use #4BB66C 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.