#40AD74
Closest named color: Dark Seafoam Green (#3EAF76). oklch(67% 0.131 156.9), rgb(64, 173, 116).
Aa
Black text reads best on this color (7.44:1).
About this color
#40AD74 is a medium-light, moderately saturated green. In OKLCH its lightness is 67%, its chroma 0.131 and its hue 157°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Seafoam Green (#3EAF76), ΔE 0.006 away. Black text reads best on it, at 7.44:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.131) |
| Temperature | in between |
| Nearest name | Dark Seafoam Green (#3EAF76) |
| Black text | 7.44:1 |
| White text | 2.81:1 |
Values
| HEX | #40AD74 |
| RGB | rgb(64, 173, 116) |
| HSL | hsl(149, 46%, 46%) |
| OKLCH | oklch(67% 0.131 156.9) |
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 #40AD74 | 2.81:1 | Fails | Lc -59.1 | Large or bold text, headings |
| Black text on #40AD74 | 7.44:1 | AAA | Lc 50.2 | Large or bold text, headings |
| #40AD74 text on white | 2.81:1 | Fails | Lc 53.9 | Large or bold text, headings |
| #40AD74 text on black | 7.44:1 | AAA | Lc -48.0 | 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 400.
-
Step 50
50
#F0F8F2
oklch(97.1% 0.012 153.7)
-
Step 100
100
#DEEFE4
oklch(93.6% 0.023 157.6)
-
Step 200
200
#C2E3CD
oklch(88.6% 0.046 156.2)
-
Step 300
300
#94D1AC
oklch(80.9% 0.082 157.4)
-
Step 400
400 (this color)
#40AD74
oklch(67% 0.131 156.9)
-
Step 500
500
#00A363
oklch(63% 0.15 157)
-
Step 600
600
#008A53
oklch(55.7% 0.133 157)
-
Step 700
700
#007445
oklch(49.2% 0.117 157)
-
Step 800
800
#005F37
oklch(42.7% 0.102 156.7)
-
Step 900
900
#004F2D
oklch(37.6% 0.09 156.8)
-
Step 950
950
#002F19
oklch(26.9% 0.064 157.1)
#40AD74 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) | #ACA070 | 0.120 |
| Deuteranopia (no green cones) | #9D9678 | 0.116 |
| Tritanopia (no blue cones) | #04AC9E | 0.061 |
| Achromatopsia (no color) | #9A9A9A | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40AD74
#40AD74
oklch(67% 0.131 156.9)
- #C874B3
#C874B3
oklch(67.1% 0.132 336.9)
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 #40AD74, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Seafoam Green #3EAF76 ΔE 0.006
- Bluey Green #2BB179 ΔE 0.013
- Seaweed Green #35AD6B ΔE 0.015
- Algae #54AC68 ΔE 0.018
- Medium Sea Green #3CB371 ΔE 0.019
- Jade Green #2BAF6A ΔE 0.021
- Dark Seafoam #1FB57A ΔE 0.024
- Jade #1FA774 ΔE 0.026
Use #40AD74 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.