#42A345
Closest named color: Mid Green (#50A747). oklch(63.6% 0.161 143.9), rgb(66, 163, 69).
Aa
Black text reads best on this color (6.55:1).
About this color
#42A345 is a medium-light, vivid green. In OKLCH its lightness is 64%, its chroma 0.161 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Mid Green (#50A747), ΔE 0.017 away. Black text reads best on it, at 6.55:1.
| Hue family | Greens |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.161) |
| Temperature | in between |
| Nearest name | Mid Green (#50A747) |
| Black text | 6.55:1 |
| White text | 3.20:1 |
Values
| HEX | #42A345 |
| RGB | rgb(66, 163, 69) |
| HSL | hsl(122, 42%, 45%) |
| OKLCH | oklch(63.6% 0.161 143.9) |
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 #42A345 | 3.20:1 | AA large text | Lc -64.3 | Content text, not long reading |
| Black text on #42A345 | 6.55:1 | AA | Lc 45.2 | Large or bold text, headings |
| #42A345 text on white | 3.20:1 | AA large text | Lc 58.9 | Large or bold text, headings |
| #42A345 text on black | 6.55:1 | AA | Lc -42.8 | Non-text elements, placeholder text |
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
#F1F7F1
oklch(97% 0.01 145.5)
-
Step 100
100
#E1EEE0
oklch(93.6% 0.023 143.4)
-
Step 200
200
#C9E1C7
oklch(88.5% 0.043 143.1)
-
Step 300
300
#A2CEA1
oklch(80.8% 0.078 144.3)
-
Step 400
400
#6DB56D
oklch(70.8% 0.126 144.1)
-
Step 500
500 (this color)
#42A345
oklch(63.6% 0.161 143.9)
-
Step 600
600
#118B20
oklch(55.5% 0.174 143.9)
-
Step 700
700
#007614
oklch(49.1% 0.16 143.9)
-
Step 800
800
#086013
oklch(42.6% 0.134 143.9)
-
Step 900
900
#154F18
oklch(37.7% 0.104 143.9)
-
Step 950
950
#0E2E0F
oklch(26.8% 0.066 144)
#42A345 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) | #A6953C | 0.118 |
| Deuteranopia (no green cones) | #9A8D4C | 0.118 |
| Tritanopia (no blue cones) | #309F8E | 0.100 |
| Achromatopsia (no color) | #909090 | 0.161 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42A345
#42A345
oklch(63.6% 0.161 143.9)
- #B965C1
#B965C1
oklch(63.6% 0.16 324)
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 #42A345, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Green #50A747 ΔE 0.017
- Medium Green #39AD48 ΔE 0.028
- Muted Green #5FA052 ΔE 0.033
- Fern #63A950 ΔE 0.038
- Grassy Green #419C03 ΔE 0.040
- Dark Pastel Green #56AE57 ΔE 0.040
- Grass Green #3F9B0B ΔE 0.040
- Flat Green #699D4C ΔE 0.041
Use #42A345 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.