#42A347
Closest named color: Mid Green (#50A747). oklch(63.7% 0.159 144.3), rgb(66, 163, 71).
Aa
Black text reads best on this color (6.56:1).
About this color
#42A347 is a medium-light, vivid green. In OKLCH its lightness is 64%, its chroma 0.159 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 6.56:1.
| Hue family | Greens |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.159) |
| Temperature | in between |
| Nearest name | Mid Green (#50A747) |
| Black text | 6.56:1 |
| White text | 3.20:1 |
Values
| HEX | #42A347 |
| RGB | rgb(66, 163, 71) |
| HSL | hsl(123, 42%, 45%) |
| OKLCH | oklch(63.7% 0.159 144.3) |
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 #42A347 | 3.20:1 | AA large text | Lc -64.3 | Content text, not long reading |
| Black text on #42A347 | 6.56:1 | AA | Lc 45.2 | Large or bold text, headings |
| #42A347 text on white | 3.20:1 | AA large text | Lc 58.9 | Large or bold text, headings |
| #42A347 text on black | 6.56:1 | AA | Lc -42.9 | 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
#E1EEE1
oklch(93.6% 0.022 145.4)
-
Step 200
200
#C9E1C8
oklch(88.5% 0.042 144.1)
-
Step 300
300
#A2CEA1
oklch(80.8% 0.078 144.3)
-
Step 400
400
#6DB56E
oklch(70.8% 0.125 144.4)
-
Step 500
500 (this color)
#42A347
oklch(63.7% 0.159 144.3)
-
Step 600
600
#108B23
oklch(55.5% 0.172 144.3)
-
Step 700
700
#007617
oklch(49.1% 0.158 144.3)
-
Step 800
800
#076015
oklch(42.6% 0.133 144.3)
-
Step 900
900
#154F19
oklch(37.7% 0.103 144.2)
-
Step 950
950
#0E2E10
oklch(26.9% 0.065 144.6)
#42A347 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) | #A6953E | 0.118 |
| Deuteranopia (no green cones) | #9A8D4E | 0.118 |
| Tritanopia (no blue cones) | #309F8F | 0.099 |
| Achromatopsia (no color) | #909090 | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42A347
#42A347
oklch(63.7% 0.159 144.3)
- #B965C0
#B965C0
oklch(63.6% 0.159 324.4)
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 #42A347, 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 0.029
- Muted Green #5FA052 ΔE 0.032
- Fern #63A950 ΔE 0.037
- Dark Pastel Green #56AE57 ΔE 0.040
- Flat Green #699D4C ΔE 0.040
- Grass Green #3F9B0B ΔE 0.042
- Grassy Green #419C03 ΔE 0.042
Use #42A347 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.