#42B030
Closest named color: Grass (#5CAC2D). oklch(66.9% 0.192 141.1), rgb(66, 176, 48).
Aa
Black text reads best on this color (7.48:1).
About this color
#42B030 is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.192 and its hue 141°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grass (#5CAC2D), ΔE 0.021 away. Black text reads best on it, at 7.48:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.192) |
| Temperature | in between |
| Nearest name | Grass (#5CAC2D) |
| Black text | 7.48:1 |
| White text | 2.80:1 |
Values
| HEX | #42B030 |
| RGB | rgb(66, 176, 48) |
| HSL | hsl(112, 57%, 44%) |
| OKLCH | oklch(66.9% 0.192 141.1) |
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 #42B030 | 2.80:1 | Fails | Lc -58.8 | Large or bold text, headings |
| Black text on #42B030 | 7.48:1 | AAA | Lc 50.5 | Large or bold text, headings |
| #42B030 text on white | 2.80:1 | Fails | Lc 53.5 | Large or bold text, headings |
| #42B030 text on black | 7.48:1 | AAA | Lc -48.3 | 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
#E0EFDE
oklch(93.6% 0.028 142)
-
Step 200
200
#C7E2C2
oklch(88.4% 0.052 140.8)
-
Step 300
300
#9FD097
oklch(80.8% 0.094 141.1)
-
Step 400
400
#67B75B
oklch(70.7% 0.15 141.2)
-
Step 500
500 (this color)
#42B030
oklch(66.9% 0.192 141.1)
-
Step 600
600
#1D8B00
oklch(55.5% 0.183 141.1)
-
Step 700
700
#177500
oklch(49% 0.162 141.1)
-
Step 800
800
#116000
oklch(42.6% 0.141 141.1)
-
Step 900
900
#0C5000
oklch(37.6% 0.124 141.1)
-
Step 950
950
#0B2F05
oklch(26.9% 0.079 140.8)
#42B030 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) | #B4A019 | 0.131 |
| Deuteranopia (no green cones) | #A7973D | 0.132 |
| Tritanopia (no blue cones) | #30AA97 | 0.128 |
| Achromatopsia (no color) | #9A9A9A | 0.193 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42B030
#42B030
oklch(66.9% 0.192 141.1)
- #C866DB
#C866DB
oklch(66.9% 0.191 320.9)
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 #42B030, closest first.
No curated palette has a color within ΔE 0.04 of #42B030.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grass #5CAC2D ΔE 0.021
- Medium Green #39AD48 ΔE 0.024
- Leaf Green #5CA904 ΔE 0.025
- Leafy Green #51B73B ΔE 0.025
- Shamrock #01B44C ΔE 0.026
- Kelly Green #02AB2E ΔE 0.030
- Mid Green #50A747 ΔE 0.038
- Leaf #71AA34 ΔE 0.044
Use #42B030 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.