#40AE45
Closest named color: Medium Green (#39AD48). oklch(66.5% 0.176 144), rgb(64, 174, 69).
Aa
Black text reads best on this color (7.35:1).
About this color
#40AE45 is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.176 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 0.006 away. Black text reads best on it, at 7.35:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.176) |
| Temperature | in between |
| Nearest name | Medium Green (#39AD48) |
| Black text | 7.35:1 |
| White text | 2.85:1 |
Values
| HEX | #40AE45 |
| RGB | rgb(64, 174, 69) |
| HSL | hsl(123, 46%, 47%) |
| OKLCH | oklch(66.5% 0.176 144) |
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 #40AE45 | 2.85:1 | Fails | Lc -59.6 | Large or bold text, headings |
| Black text on #40AE45 | 7.35:1 | AAA | Lc 49.8 | Large or bold text, headings |
| #40AE45 text on white | 2.85:1 | Fails | Lc 54.3 | Large or bold text, headings |
| #40AE45 text on black | 7.35:1 | AAA | Lc -47.5 | 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
#F1F8F1
oklch(97.2% 0.012 145.5)
-
Step 100
100
#E0EFE0
oklch(93.7% 0.026 145.4)
-
Step 200
200
#C7E2C6
oklch(88.5% 0.048 144.2)
-
Step 300
300
#9FD09E
oklch(81% 0.086 144.2)
-
Step 400
400
#67B667
oklch(70.6% 0.137 144)
-
Step 500
500 (this color)
#40AE45
oklch(66.5% 0.176 144)
-
Step 600
600
#008C1A
oklch(55.6% 0.18 144)
-
Step 700
700
#007615
oklch(49.1% 0.159 144)
-
Step 800
800
#00610F
oklch(42.8% 0.139 144)
-
Step 900
900
#0A5011
oklch(37.7% 0.115 143.9)
-
Step 950
950
#0A2F0C
oklch(27% 0.073 144)
#40AE45 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) | #B19F3A | 0.129 |
| Deuteranopia (no green cones) | #A4954E | 0.130 |
| Tritanopia (no blue cones) | #28A997 | 0.110 |
| Achromatopsia (no color) | #999999 | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40AE45
#40AE45
oklch(66.5% 0.176 144)
- #C769D0
#C769D0
oklch(66.6% 0.176 324)
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 #40AE45, closest first.
No curated palette has a color within ΔE 0.04 of #40AE45.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Green #39AD48 ΔE 0.006
- Shamrock #01B44C ΔE 0.023
- Mid Green #50A747 ΔE 0.023
- Grass #5CAC2D ΔE 0.023
- Dark Pastel Green #56AE57 ΔE 0.028
- Leafy Green #51B73B ΔE 0.033
- Kelly Green #02AB2E ΔE 0.034
- Leaf Green #5CA904 ΔE 0.034
Use #40AE45 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.