#40AE5D
Closest named color: Dark Pastel Green (#56AE57). oklch(66.8% 0.154 149), rgb(64, 174, 93).
Aa
Black text reads best on this color (7.43:1).
About this color
#40AE5D is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.154 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Pastel Green (#56AE57), ΔE 0.016 away. Black text reads best on it, at 7.43:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.154) |
| Temperature | in between |
| Nearest name | Dark Pastel Green (#56AE57) |
| Black text | 7.43:1 |
| White text | 2.82:1 |
Values
| HEX | #40AE5D |
| RGB | rgb(64, 174, 93) |
| HSL | hsl(136, 46%, 47%) |
| OKLCH | oklch(66.8% 0.154 149) |
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 #40AE5D | 2.82:1 | Fails | Lc -59.2 | Large or bold text, headings |
| Black text on #40AE5D | 7.43:1 | AAA | Lc 50.1 | Large or bold text, headings |
| #40AE5D text on white | 2.82:1 | Fails | Lc 53.9 | Large or bold text, headings |
| #40AE5D text on black | 7.43:1 | AAA | Lc -47.9 | 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
#F1F7F2
oklch(97% 0.009 150.7)
-
Step 100
100
#E0EEE2
oklch(93.5% 0.022 149.7)
-
Step 200
200
#C7E1CA
oklch(88.4% 0.042 148.5)
-
Step 300
300
#9FCFA6
oklch(81% 0.076 148.8)
-
Step 400
400
#66B576
oklch(70.6% 0.121 149.1)
-
Step 500
500 (this color)
#40AE5D
oklch(66.8% 0.154 149)
-
Step 600
600
#008B3A
oklch(55.6% 0.157 148.9)
-
Step 700
700
#007530
oklch(49.1% 0.138 149)
-
Step 800
800
#006026
oklch(42.7% 0.12 149)
-
Step 900
900
#094F21
oklch(37.6% 0.1 149.1)
-
Step 950
950
#0A2F14
oklch(27.1% 0.064 149)
#40AE5D 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) | #AFA057 | 0.125 |
| Deuteranopia (no green cones) | #A19663 | 0.124 |
| Tritanopia (no blue cones) | #1DAB9B | 0.087 |
| Achromatopsia (no color) | #9A9A9A | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40AE5D
#40AE5D
oklch(66.8% 0.154 149)
- #C76EC3
#C76EC3
oklch(66.8% 0.155 328.8)
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 #40AE5D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Pastel Green #56AE57 ΔE 0.016
- Jade Green #2BAF6A ΔE 0.016
- Seaweed Green #35AD6B ΔE 0.018
- Algae #54AC68 ΔE 0.023
- Medium Green #39AD48 ΔE 0.024
- Medium Sea Green #3CB371 ΔE 0.024
- Mid Green #50A747 ΔE 0.025
- Cool Green #33B864 ΔE 0.027
Use #40AE5D 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.