#40AE7E
Closest named color: Dark Seafoam Green (#3EAF76). oklch(67.5% 0.124 161.2), rgb(64, 174, 126).
Aa
Black text reads best on this color (7.57:1).
About this color
#40AE7E is a medium-light, moderately saturated green. In OKLCH its lightness is 68%, its chroma 0.124 and its hue 161°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Seafoam Green (#3EAF76), ΔE 0.013 away. Black text reads best on it, at 7.57:1.
| Hue family | Greens |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.124) |
| Temperature | in between |
| Nearest name | Dark Seafoam Green (#3EAF76) |
| Black text | 7.57:1 |
| White text | 2.77:1 |
Values
| HEX | #40AE7E |
| RGB | rgb(64, 174, 126) |
| HSL | hsl(154, 46%, 47%) |
| OKLCH | oklch(67.5% 0.124 161.2) |
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 #40AE7E | 2.77:1 | Fails | Lc -58.4 | Large or bold text, headings |
| Black text on #40AE7E | 7.57:1 | AAA | Lc 50.9 | Large or bold text, headings |
| #40AE7E text on white | 2.77:1 | Fails | Lc 53.2 | Large or bold text, headings |
| #40AE7E text on black | 7.57:1 | AAA | Lc -48.7 | 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 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
#C1E2D0
oklch(88.4% 0.043 161.6)
-
Step 300
300
#94D1B1
oklch(81% 0.077 161.1)
-
Step 400
400 (this color)
#40AE7E
oklch(67.5% 0.124 161.2)
-
Step 500
500
#00A36D
oklch(63.2% 0.141 160.9)
-
Step 600
600
#00895B
oklch(55.6% 0.124 161)
-
Step 700
700
#00734C
oklch(49.1% 0.109 161.2)
-
Step 800
800
#005E3E
oklch(42.6% 0.094 161.6)
-
Step 900
900
#004F33
oklch(37.8% 0.084 161.3)
-
Step 950
950
#002F1D
oklch(27% 0.059 161.7)
#40AE7E 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) | #ACA27B | 0.118 |
| Deuteranopia (no green cones) | #9D9781 | 0.115 |
| Tritanopia (no blue cones) | #00AEA1 | 0.051 |
| Achromatopsia (no color) | #9B9B9B | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40AE7E
#40AE7E
oklch(67.5% 0.124 161.2)
- #CA77AD
#CA77AD
oklch(67.6% 0.123 341.5)
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 #40AE7E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Seafoam Green #3EAF76 ΔE 0.013
- Bluey Green #2BB179 ΔE 0.017
- Dark Seafoam #1FB57A ΔE 0.026
- Medium Sea Green #3CB371 ΔE 0.027
- Seaweed Green #35AD6B ΔE 0.027
- Algae #54AC68 ΔE 0.028
- Tea #65AB7C ΔE 0.029
- Jade #1FA774 ΔE 0.030
Use #40AE7E 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.