#42AD3F
Closest named color: Medium Green (#39AD48). oklch(66.2% 0.178 142.8), rgb(66, 173, 63).
Aa
Black text reads best on this color (7.28:1).
About this color
#42AD3F is a medium-light, vivid green. In OKLCH its lightness is 66%, its chroma 0.178 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Green (#39AD48), ΔE 0.009 away. Black text reads best on it, at 7.28:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.178) |
| Temperature | in between |
| Nearest name | Medium Green (#39AD48) |
| Black text | 7.28:1 |
| White text | 2.88:1 |
Values
| HEX | #42AD3F |
| RGB | rgb(66, 173, 63) |
| HSL | hsl(118, 47%, 46%) |
| OKLCH | oklch(66.2% 0.178 142.8) |
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 #42AD3F | 2.88:1 | Fails | Lc -60.0 | Content text, not long reading |
| Black text on #42AD3F | 7.28:1 | AAA | Lc 49.3 | Large or bold text, headings |
| #42AD3F text on white | 2.88:1 | Fails | Lc 54.7 | Large or bold text, headings |
| #42AD3F text on black | 7.28:1 | AAA | Lc -47.1 | 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 500.
-
Step 50
50
#F1F8F0
oklch(97.2% 0.013 141.8)
-
Step 100
100
#E1EFDF
oklch(93.7% 0.026 141.8)
-
Step 200
200
#C7E2C5
oklch(88.5% 0.049 143.3)
-
Step 300
300
#A0D09C
oklch(81% 0.088 142.8)
-
Step 400
400
#68B664
oklch(70.6% 0.139 142.9)
-
Step 500
500 (this color)
#42AD3F
oklch(66.2% 0.178 142.8)
-
Step 600
600
#008C08
oklch(55.5% 0.187 142.8)
-
Step 700
700
#007605
oklch(49% 0.165 142.8)
-
Step 800
800
#006104
oklch(42.7% 0.144 142.9)
-
Step 900
900
#0D500D
oklch(37.7% 0.117 142.8)
-
Step 950
950
#0B2F0B
oklch(27% 0.073 143.2)
#42AD3F 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) | #B19E32 | 0.128 |
| Deuteranopia (no green cones) | #A39548 | 0.127 |
| Tritanopia (no blue cones) | #2EA896 | 0.114 |
| Achromatopsia (no color) | #989898 | 0.179 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42AD3F
#42AD3F
oklch(66.2% 0.178 142.8)
- #C567D1
#C567D1
oklch(66.2% 0.179 323)
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 #42AD3F, closest first.
No curated palette has a color within ΔE 0.04 of #42AD3F.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Green #39AD48 ΔE 0.009
- Grass #5CAC2D ΔE 0.021
- Mid Green #50A747 ΔE 0.023
- Shamrock #01B44C ΔE 0.025
- Leaf Green #5CA904 ΔE 0.030
- Kelly Green #02AB2E ΔE 0.031
- Dark Pastel Green #56AE57 ΔE 0.032
- Leafy Green #51B73B ΔE 0.033
Use #42AD3F 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.