#40B072
Closest named color: Dark Seafoam Green (#3EAF76). oklch(67.8% 0.137 155.5), rgb(64, 176, 114).
Aa
Black text reads best on this color (7.67:1).
About this color
#40B072 is a medium-light, moderately saturated green. In OKLCH its lightness is 68%, its chroma 0.137 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Seafoam Green (#3EAF76), ΔE 0.007 away. Black text reads best on it, at 7.67:1.
| Hue family | Greens |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.137) |
| Temperature | in between |
| Nearest name | Dark Seafoam Green (#3EAF76) |
| Black text | 7.67:1 |
| White text | 2.73:1 |
Values
| HEX | #40B072 |
| RGB | rgb(64, 176, 114) |
| HSL | hsl(147, 47%, 47%) |
| OKLCH | oklch(67.8% 0.137 155.5) |
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 #40B072 | 2.73:1 | Fails | Lc -57.8 | Large or bold text, headings |
| Black text on #40B072 | 7.67:1 | AAA | Lc 51.4 | Large or bold text, headings |
| #40B072 text on white | 2.73:1 | Fails | Lc 52.6 | Large or bold text, headings |
| #40B072 text on black | 7.67:1 | AAA | Lc -49.2 | 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
#DEEFE3
oklch(93.6% 0.024 155.1)
-
Step 200
200
#C1E3CC
oklch(88.5% 0.048 155.7)
-
Step 300
300
#93D2A9
oklch(81% 0.087 155.4)
-
Step 400
400 (this color)
#40B072
oklch(67.8% 0.137 155.5)
-
Step 500
500
#00A45F
oklch(63.2% 0.155 155.5)
-
Step 600
600
#008A4F
oklch(55.7% 0.136 155.4)
-
Step 700
700
#007442
oklch(49.1% 0.12 155.6)
-
Step 800
800
#005F35
oklch(42.7% 0.104 155.6)
-
Step 900
900
#004F2B
oklch(37.6% 0.092 155.5)
-
Step 950
950
#003018
oklch(27.2% 0.067 155.5)
#40B072 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) | #AFA36E | 0.122 |
| Deuteranopia (no green cones) | #A19876 | 0.121 |
| Tritanopia (no blue cones) | #03AEA0 | 0.067 |
| Achromatopsia (no color) | #9C9C9C | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40B072
#40B072
oklch(67.8% 0.137 155.5)
- #CB75B8
#CB75B8
oklch(67.8% 0.136 335.7)
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 #40B072, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Seafoam Green #3EAF76 ΔE 0.007
- Medium Sea Green #3CB371 ΔE 0.009
- Bluey Green #2BB179 ΔE 0.012
- Seaweed Green #35AD6B ΔE 0.014
- Algae #54AC68 ΔE 0.017
- Jade Green #2BAF6A ΔE 0.017
- Dark Seafoam #1FB57A ΔE 0.017
- Green Teal #0CB577 ΔE 0.020
Use #40B072 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.