#42B03E
Closest named color: Medium Green (#39AD48). oklch(67% 0.183 142.7), rgb(66, 176, 62).
Aa
Black text reads best on this color (7.51:1).
About this color
#42B03E is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.183 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 0.015 away. Black text reads best on it, at 7.51:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.183) |
| Temperature | in between |
| Nearest name | Medium Green (#39AD48) |
| Black text | 7.51:1 |
| White text | 2.79:1 |
Values
| HEX | #42B03E |
| RGB | rgb(66, 176, 62) |
| HSL | hsl(118, 48%, 47%) |
| OKLCH | oklch(67% 0.183 142.7) |
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 #42B03E | 2.79:1 | Fails | Lc -58.7 | Large or bold text, headings |
| Black text on #42B03E | 7.51:1 | AAA | Lc 50.6 | Large or bold text, headings |
| #42B03E text on white | 2.79:1 | Fails | Lc 53.4 | Large or bold text, headings |
| #42B03E text on black | 7.51:1 | AAA | Lc -48.4 | 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
#DEF0DC
oklch(93.6% 0.033 142.5)
-
Step 200
200
#C2E5BE
oklch(88.6% 0.064 142.3)
-
Step 300
300
#94D48F
oklch(80.9% 0.115 142.7)
-
Step 400
400 (this color)
#42B03E
oklch(67% 0.183 142.7)
-
Step 500
500
#00A707
oklch(63.1% 0.213 142.7)
-
Step 600
600
#008C04
oklch(55.5% 0.188 142.7)
-
Step 700
700
#007603
oklch(49% 0.166 142.7)
-
Step 800
800
#006102
oklch(42.7% 0.144 142.7)
-
Step 900
900
#005101
oklch(37.7% 0.128 142.6)
-
Step 950
950
#003101
oklch(27.1% 0.091 142.9)
#42B03E 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) | #B4A030 | 0.131 |
| Deuteranopia (no green cones) | #A69748 | 0.130 |
| Tritanopia (no blue cones) | #2DAB98 | 0.117 |
| Achromatopsia (no color) | #9B9B9B | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42B03E
#42B03E
oklch(67% 0.183 142.7)
- #C968D6
#C968D6
oklch(67% 0.184 322.8)
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 #42B03E, closest first.
No curated palette has a color within ΔE 0.04 of #42B03E.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Green #39AD48 ΔE 0.015
- Grass #5CAC2D ΔE 0.020
- Shamrock #01B44C ΔE 0.021
- Leafy Green #51B73B ΔE 0.025
- Leaf Green #5CA904 ΔE 0.030
- Mid Green #50A747 ΔE 0.031
- Kelly Green #02AB2E ΔE 0.033
- Dark Pastel Green #56AE57 ΔE 0.034
Use #42B03E 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.