#42AB0C
Closest named color: Leaf Green (#5CA904). oklch(65.4% 0.201 138.8), rgb(66, 171, 12).
Aa
Black text reads best on this color (7.06:1).
About this color
#42AB0C is a medium-light, vivid green. In OKLCH its lightness is 65%, its chroma 0.201 and its hue 139°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Leaf Green (#5CA904), ΔE 0.020 away. Black text reads best on it, at 7.06:1.
| Hue family | Greens |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.201) |
| Temperature | in between |
| Nearest name | Leaf Green (#5CA904) |
| Black text | 7.06:1 |
| White text | 2.97:1 |
Values
| HEX | #42AB0C |
| RGB | rgb(66, 171, 12) |
| HSL | hsl(100, 87%, 36%) |
| OKLCH | oklch(65.4% 0.201 138.8) |
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 #42AB0C | 2.97:1 | Fails | Lc -61.2 | Content text, not long reading |
| Black text on #42AB0C | 7.06:1 | AAA | Lc 48.2 | Large or bold text, headings |
| #42AB0C text on white | 2.97:1 | Fails | Lc 55.8 | Large or bold text, headings |
| #42AB0C text on black | 7.06:1 | AAA | Lc -45.9 | 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
#F1F8EF
oklch(97.1% 0.014 138.7)
-
Step 100
100
#E1EFDD
oklch(93.7% 0.028 138.7)
-
Step 200
200
#C7E2C0
oklch(88.4% 0.054 139.3)
-
Step 300
300
#A0D092
oklch(80.8% 0.099 138.7)
-
Step 400
400
#6AB751
oklch(70.7% 0.158 138.6)
-
Step 500
500 (this color)
#42AB0C
oklch(65.4% 0.201 138.8)
-
Step 600
600
#318900
oklch(55.5% 0.174 138.8)
-
Step 700
700
#287400
oklch(49.2% 0.155 138.8)
-
Step 800
800
#205F00
oklch(42.8% 0.134 138.7)
-
Step 900
900
#194F00
oklch(37.7% 0.118 138.8)
-
Step 950
950
#0C2F01
oklch(26.9% 0.083 139)
#42AB0C 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) | #B09B00 | 0.132 |
| Deuteranopia (no green cones) | #A49227 | 0.132 |
| Tritanopia (no blue cones) | #36A591 | 0.139 |
| Achromatopsia (no color) | #969696 | 0.202 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42AB0C
#42AB0C
oklch(65.4% 0.201 138.8)
- #C25FDD
#C25FDD
oklch(65.4% 0.201 318.6)
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 #42AB0C, closest first.
No curated palette has a color within ΔE 0.04 of #42AB0C.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Leaf Green #5CA904 ΔE 0.020
- Kelly Green #02AB2E ΔE 0.024
- Grass #5CAC2D ΔE 0.029
- Medium Green #39AD48 ΔE 0.035
- Shamrock #01B44C ΔE 0.040
- Leafy Green #51B73B ΔE 0.042
- Grassy Green #419C03 ΔE 0.043
- Mid Green #50A747 ΔE 0.045
Use #42AB0C 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.