#40AA6F
Closest named color: Seaweed Green (#35AD6B). oklch(66.1% 0.132 155.6), rgb(64, 170, 111).
Aa
Black text reads best on this color (7.19:1).
About this color
#40AA6F is a medium-light, moderately saturated green. In OKLCH its lightness is 66%, its chroma 0.132 and its hue 156°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Seaweed Green (#35AD6B), ΔE 0.013 away. Black text reads best on it, at 7.19:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.132) |
| Temperature | in between |
| Nearest name | Seaweed Green (#35AD6B) |
| Black text | 7.19:1 |
| White text | 2.91:1 |
Values
| HEX | #40AA6F |
| RGB | rgb(64, 170, 111) |
| HSL | hsl(147, 45%, 46%) |
| OKLCH | oklch(66.1% 0.132 155.6) |
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 #40AA6F | 2.91:1 | Fails | Lc -60.6 | Content text, not long reading |
| Black text on #40AA6F | 7.19:1 | AAA | Lc 48.8 | Large or bold text, headings |
| #40AA6F text on white | 2.91:1 | Fails | Lc 55.3 | Large or bold text, headings |
| #40AA6F text on black | 7.19:1 | AAA | Lc -46.5 | 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
#E1EEE5
oklch(93.7% 0.018 155.8)
-
Step 200
200
#C7E1CF
oklch(88.6% 0.037 155.4)
-
Step 300
300
#A0CEAF
oklch(81% 0.065 155.2)
-
Step 400
400
#68B485
oklch(70.8% 0.103 155.5)
-
Step 500
500 (this color)
#40AA6F
oklch(66.1% 0.132 155.6)
-
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
#0B4F2D
oklch(37.8% 0.087 155.4)
-
Step 950
950
#0B2E1B
oklch(27% 0.054 156)
#40AA6F 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) | #A99D6B | 0.118 |
| Deuteranopia (no green cones) | #9B9373 | 0.116 |
| Tritanopia (no blue cones) | #10A89B | 0.065 |
| Achromatopsia (no color) | #979797 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40AA6F
#40AA6F
oklch(66.1% 0.132 155.6)
- #C471B2
#C471B2
oklch(66.1% 0.133 335.5)
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 #40AA6F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seaweed Green #35AD6B ΔE 0.013
- Dark Seafoam Green #3EAF76 ΔE 0.015
- Algae #54AC68 ΔE 0.018
- Bluey Green #2BB179 ΔE 0.021
- Jade #1FA774 ΔE 0.021
- Jade Green #2BAF6A ΔE 0.021
- Medium Sea Green #3CB371 ΔE 0.026
- Dark Seafoam #1FB57A ΔE 0.031
Use #40AA6F 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.