#42B246
Closest named color: Medium Green (#39AD48). oklch(67.6% 0.179 143.8), rgb(66, 178, 70).
Aa
Black text reads best on this color (7.68:1).
About this color
#42B246 is a medium-light, vivid green. In OKLCH its lightness is 68%, its chroma 0.179 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Green (#39AD48), ΔE 0.017 away. Black text reads best on it, at 7.68:1.
| Hue family | Greens |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.179) |
| Temperature | in between |
| Nearest name | Medium Green (#39AD48) |
| Black text | 7.68:1 |
| White text | 2.73:1 |
Values
| HEX | #42B246 |
| RGB | rgb(66, 178, 70) |
| HSL | hsl(122, 46%, 48%) |
| OKLCH | oklch(67.6% 0.179 143.8) |
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 #42B246 | 2.73:1 | Fails | Lc -57.7 | Large or bold text, headings |
| Black text on #42B246 | 7.68:1 | AAA | Lc 51.6 | Large or bold text, headings |
| #42B246 text on white | 2.73:1 | Fails | Lc 52.5 | Large or bold text, headings |
| #42B246 text on black | 7.68:1 | AAA | Lc -49.4 | 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
#F0F8EF
oklch(97.1% 0.015 142.2)
-
Step 100
100
#DEF0DD
oklch(93.7% 0.032 143.9)
-
Step 200
200
#C1E4C0
oklch(88.4% 0.061 144.3)
-
Step 300
300
#94D492
oklch(81% 0.112 143.7)
-
Step 400
400 (this color)
#42B246
oklch(67.6% 0.179 143.8)
-
Step 500
500
#00A71F
oklch(63.2% 0.206 143.8)
-
Step 600
600
#008C19
oklch(55.6% 0.181 143.9)
-
Step 700
700
#007613
oklch(49.1% 0.16 143.8)
-
Step 800
800
#00610E
oklch(42.8% 0.139 143.9)
-
Step 900
900
#00510A
oklch(37.7% 0.123 143.9)
-
Step 950
950
#003004
oklch(26.8% 0.087 144)
#42B246 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) | #B5A23A | 0.131 |
| Deuteranopia (no green cones) | #A8994F | 0.131 |
| Tritanopia (no blue cones) | #2AAD9B | 0.113 |
| Achromatopsia (no color) | #9C9C9C | 0.180 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42B246
#42B246
oklch(67.6% 0.179 143.8)
- #CB6BD5
#CB6BD5
oklch(67.6% 0.179 323.7)
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 #42B246, closest first.
No curated palette has a color within ΔE 0.04 of #42B246.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Green #39AD48 ΔE 0.017
- Shamrock #01B44C ΔE 0.020
- Leafy Green #51B73B ΔE 0.022
- Grass #5CAC2D ΔE 0.024
- Dark Pastel Green #56AE57 ΔE 0.029
- Cool Green #33B864 ΔE 0.030
- Mid Green #50A747 ΔE 0.033
- Leaf Green #5CA904 ΔE 0.037
Use #42B246 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.