#40AC79
Closest named color: Dark Seafoam Green (#3EAF76). oklch(66.9% 0.125 159.4), rgb(64, 172, 121).
Aa
Black text reads best on this color (7.39:1).
About this color
#40AC79 is a medium-light, moderately saturated green. In OKLCH its lightness is 67%, its chroma 0.125 and its hue 159°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Seafoam Green (#3EAF76), ΔE 0.011 away. Black text reads best on it, at 7.39:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.125) |
| Temperature | in between |
| Nearest name | Dark Seafoam Green (#3EAF76) |
| Black text | 7.39:1 |
| White text | 2.83:1 |
Values
| HEX | #40AC79 |
| RGB | rgb(64, 172, 121) |
| HSL | hsl(152, 46%, 46%) |
| OKLCH | oklch(66.9% 0.125 159.4) |
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 #40AC79 | 2.83:1 | Fails | Lc -59.4 | Large or bold text, headings |
| Black text on #40AC79 | 7.39:1 | AAA | Lc 49.9 | Large or bold text, headings |
| #40AC79 text on white | 2.83:1 | Fails | Lc 54.2 | Large or bold text, headings |
| #40AC79 text on black | 7.39:1 | 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
#F1F7F3
oklch(97.1% 0.008 157.1)
-
Step 100
100
#E0EEE6
oklch(93.6% 0.018 161.1)
-
Step 200
200
#C7E0D1
oklch(88.4% 0.033 159.3)
-
Step 300
300
#9FCDB3
oklch(80.8% 0.061 159.9)
-
Step 400
400
#66B38B
oklch(70.6% 0.097 159.8)
-
Step 500
500 (this color)
#40AC79
oklch(66.9% 0.125 159.4)
-
Step 600
600
#008958
oklch(55.6% 0.127 159.5)
-
Step 700
700
#007349
oklch(49% 0.112 159.4)
-
Step 800
800
#005F3B
oklch(42.8% 0.098 159.1)
-
Step 900
900
#084E32
oklch(37.6% 0.081 160)
-
Step 950
950
#0A2E1D
oklch(27% 0.052 159.1)
#40AC79 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) | #AAA076 | 0.117 |
| Deuteranopia (no green cones) | #9C957C | 0.115 |
| Tritanopia (no blue cones) | #00AB9E | 0.055 |
| Achromatopsia (no color) | #999999 | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40AC79
#40AC79
oklch(66.9% 0.125 159.4)
- #C775AE
#C775AE
oklch(67% 0.125 339.4)
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 #40AC79, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Seafoam Green #3EAF76 ΔE 0.011
- Bluey Green #2BB179 ΔE 0.017
- Seaweed Green #35AD6B ΔE 0.022
- Algae #54AC68 ΔE 0.024
- Jade #1FA774 ΔE 0.024
- Medium Sea Green #3CB371 ΔE 0.026
- Dark Seafoam #1FB57A ΔE 0.028
- Jade Green #2BAF6A ΔE 0.028
Use #40AC79 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.