#40AE7B
Closest named color: Dark Seafoam Green (#3EAF76). oklch(67.4% 0.126 159.8), rgb(64, 174, 123).
Aa
Black text reads best on this color (7.55:1).
About this color
#40AE7B is a medium-light, moderately saturated green. In OKLCH its lightness is 67%, its chroma 0.126 and its hue 160°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Seafoam Green (#3EAF76), ΔE 0.009 away. Black text reads best on it, at 7.55:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.126) |
| Temperature | in between |
| Nearest name | Dark Seafoam Green (#3EAF76) |
| Black text | 7.55:1 |
| White text | 2.77:1 |
Values
| HEX | #40AE7B |
| RGB | rgb(64, 174, 123) |
| HSL | hsl(152, 46%, 47%) |
| OKLCH | oklch(67.4% 0.126 159.8) |
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 #40AE7B | 2.77:1 | Fails | Lc -58.5 | Large or bold text, headings |
| Black text on #40AE7B | 7.55:1 | AAA | Lc 50.8 | Large or bold text, headings |
| #40AE7B text on white | 2.77:1 | Fails | Lc 53.3 | Large or bold text, headings |
| #40AE7B text on black | 7.55:1 | AAA | Lc -48.6 | 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
#F0F8F3
oklch(97.2% 0.011 158.8)
-
Step 100
100
#DEEFE5
oklch(93.7% 0.022 160.2)
-
Step 200
200
#C1E3CF
oklch(88.6% 0.045 159.5)
-
Step 300
300
#94D1AF
oklch(81% 0.079 159.6)
-
Step 400
400 (this color)
#40AE7B
oklch(67.4% 0.126 159.8)
-
Step 500
500
#00A36A
oklch(63.1% 0.143 159.7)
-
Step 600
600
#008959
oklch(55.6% 0.126 160)
-
Step 700
700
#00734A
oklch(49% 0.111 160)
-
Step 800
800
#005F3C
oklch(42.8% 0.097 159.8)
-
Step 900
900
#004F31
oklch(37.7% 0.086 159.7)
-
Step 950
950
#002F1C
oklch(26.9% 0.06 160.5)
#40AE7B 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) | #ACA178 | 0.119 |
| Deuteranopia (no green cones) | #9D977E | 0.115 |
| Tritanopia (no blue cones) | #00ADA0 | 0.055 |
| Achromatopsia (no color) | #9B9B9B | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40AE7B
#40AE7B
oklch(67.4% 0.126 159.8)
- #C976AF
#C976AF
oklch(67.4% 0.126 339.8)
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 #40AE7B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Seafoam Green #3EAF76 ΔE 0.009
- Bluey Green #2BB179 ΔE 0.014
- Medium Sea Green #3CB371 ΔE 0.023
- Seaweed Green #35AD6B ΔE 0.023
- Dark Seafoam #1FB57A ΔE 0.024
- Algae #54AC68 ΔE 0.024
- Jade Green #2BAF6A ΔE 0.028
- Green Teal #0CB577 ΔE 0.028
Use #40AE7B 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.