#40AE4F
Closest named color: Medium Green (#39AD48). oklch(66.6% 0.167 145.8), rgb(64, 174, 79).
Aa
Black text reads best on this color (7.38:1).
About this color
#40AE4F is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.167 and its hue 146°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Green (#39AD48), ΔE 0.009 away. Black text reads best on it, at 7.38:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.167) |
| Temperature | in between |
| Nearest name | Medium Green (#39AD48) |
| Black text | 7.38:1 |
| White text | 2.84:1 |
Values
| HEX | #40AE4F |
| RGB | rgb(64, 174, 79) |
| HSL | hsl(128, 46%, 47%) |
| OKLCH | oklch(66.6% 0.167 145.8) |
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 #40AE4F | 2.84:1 | Fails | Lc -59.4 | Large or bold text, headings |
| Black text on #40AE4F | 7.38:1 | AAA | Lc 49.9 | Large or bold text, headings |
| #40AE4F text on white | 2.84:1 | Fails | Lc 54.1 | Large or bold text, headings |
| #40AE4F text on black | 7.38:1 | AAA | Lc -47.7 | 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
#E0EEE1
oklch(93.5% 0.023 147.4)
-
Step 200
200
#C7E2C8
oklch(88.6% 0.045 146.2)
-
Step 300
300
#9FCFA1
oklch(80.8% 0.081 145.8)
-
Step 400
400
#67B66D
oklch(70.7% 0.131 145.7)
-
Step 500
500 (this color)
#40AE4F
oklch(66.6% 0.167 145.8)
-
Step 600
600
#008C2A
oklch(55.7% 0.171 145.8)
-
Step 700
700
#007622
oklch(49.2% 0.151 145.8)
-
Step 800
800
#00611A
oklch(42.9% 0.132 145.8)
-
Step 900
900
#0A5018
oklch(37.8% 0.109 145.7)
-
Step 950
950
#0A2F0F
oklch(27% 0.07 145.6)
#40AE4F 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) | #B19F46 | 0.129 |
| Deuteranopia (no green cones) | #A39556 | 0.128 |
| Tritanopia (no blue cones) | #24AA99 | 0.101 |
| Achromatopsia (no color) | #999999 | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40AE4F
#40AE4F
oklch(66.6% 0.167 145.8)
- #C76BCB
#C76BCB
oklch(66.7% 0.168 325.7)
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 #40AE4F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Green #39AD48 ΔE 0.009
- Mid Green #50A747 ΔE 0.020
- Dark Pastel Green #56AE57 ΔE 0.020
- Shamrock #01B44C ΔE 0.026
- Grass #5CAC2D ΔE 0.030
- Jade Green #2BAF6A ΔE 0.030
- Fern #63A950 ΔE 0.030
- Cool Green #33B864 ΔE 0.031
Use #40AE4F 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.