#40A300
Closest named color: Grassy Green (#419C03). oklch(63.1% 0.196 138.3), rgb(64, 163, 0).
Aa
Black text reads best on this color (6.45:1).
About this color
#40A300 is a medium-light, vivid green. In OKLCH its lightness is 63%, its chroma 0.196 and its hue 138°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grassy Green (#419C03), ΔE 0.021 away. Black text reads best on it, at 6.45:1.
| Hue family | Greens |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.196) |
| Temperature | in between |
| Nearest name | Grassy Green (#419C03) |
| Black text | 6.45:1 |
| White text | 3.25:1 |
Values
| HEX | #40A300 |
| RGB | rgb(64, 163, 0) |
| HSL | hsl(96, 100%, 32%) |
| OKLCH | oklch(63.1% 0.196 138.3) |
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 #40A300 | 3.25:1 | AA large text | Lc -64.8 | Content text, not long reading |
| Black text on #40A300 | 6.45:1 | AA | Lc 44.7 | Non-text elements, placeholder text |
| #40A300 text on white | 3.25:1 | AA large text | Lc 59.3 | Large or bold text, headings |
| #40A300 text on black | 6.45:1 | AA | Lc -42.4 | 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
#F1F8EF
oklch(97.1% 0.014 138.7)
-
Step 100
100
#E1EFDD
oklch(93.7% 0.028 138.7)
-
Step 200
200
#C8E2C0
oklch(88.5% 0.054 138.3)
-
Step 300
300
#A2D093
oklch(80.9% 0.096 138.1)
-
Step 400
400
#6DB653
oklch(70.6% 0.153 138.2)
-
Step 500
500 (this color)
#40A300
oklch(63.1% 0.196 138.3)
-
Step 600
600
#358900
oklch(55.6% 0.173 138.2)
-
Step 700
700
#2B7300
oklch(49% 0.152 138.2)
-
Step 800
800
#225F00
oklch(42.8% 0.133 138.3)
-
Step 900
900
#1B4F00
oklch(37.7% 0.117 138.3)
-
Step 950
950
#0E2F02
oklch(27% 0.081 138.5)
#40A300 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) | #A89300 | 0.129 |
| Deuteranopia (no green cones) | #9C8C21 | 0.125 |
| Tritanopia (no blue cones) | #369D8A | 0.136 |
| Achromatopsia (no color) | #8F8F8F | 0.197 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40A300
#40A300
oklch(63.1% 0.196 138.3)
- #B95AD4
#B95AD4
oklch(63.1% 0.196 318.2)
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 #40A300, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grassy Green #419C03 ΔE 0.021
- Grass Green #3F9B0B ΔE 0.024
- Kelly Green #02AB2E ΔE 0.027
- Leaf Green #5CA904 ΔE 0.031
- Grass #5CAC2D ΔE 0.042
- Medium Green #39AD48 ΔE 0.043
- Mid Green #50A747 ΔE 0.045
- Shamrock #01B44C ΔE 0.054
Use #40A300 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.