#40AA68
Closest named color: Seaweed Green (#35AD6B). oklch(66% 0.138 152.9), rgb(64, 170, 104).
Aa
Black text reads best on this color (7.16:1).
About this color
#40AA68 is a medium-light, moderately saturated green. In OKLCH its lightness is 66%, its chroma 0.138 and its hue 153°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Seaweed Green (#35AD6B), ΔE 0.009 away. Black text reads best on it, at 7.16:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.138) |
| Temperature | in between |
| Nearest name | Seaweed Green (#35AD6B) |
| Black text | 7.16:1 |
| White text | 2.92:1 |
Values
| HEX | #40AA68 |
| RGB | rgb(64, 170, 104) |
| HSL | hsl(143, 45%, 46%) |
| OKLCH | oklch(66% 0.138 152.9) |
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 #40AA68 | 2.92:1 | Fails | Lc -60.7 | Content text, not long reading |
| Black text on #40AA68 | 7.16:1 | AAA | Lc 48.6 | Large or bold text, headings |
| #40AA68 text on white | 2.92:1 | Fails | Lc 55.4 | Large or bold text, headings |
| #40AA68 text on black | 7.16:1 | AAA | Lc -46.4 | 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
#E1EEE4
oklch(93.7% 0.019 152.8)
-
Step 200
200
#C7E1CE
oklch(88.5% 0.038 153.8)
-
Step 300
300
#A0CEAC
oklch(80.9% 0.068 152.7)
-
Step 400
400
#68B480
oklch(70.6% 0.108 153)
-
Step 500
500 (this color)
#40AA68
oklch(66% 0.138 152.9)
-
Step 600
600
#008A48
oklch(55.5% 0.143 153)
-
Step 700
700
#00743C
oklch(49% 0.126 153.1)
-
Step 800
800
#005F30
oklch(42.6% 0.109 153.1)
-
Step 900
900
#0C4F29
oklch(37.8% 0.091 152.7)
-
Step 950
950
#0B2E18
oklch(26.9% 0.057 152.6)
#40AA68 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) | #AA9D63 | 0.119 |
| Deuteranopia (no green cones) | #9C936C | 0.117 |
| Tritanopia (no blue cones) | #17A899 | 0.071 |
| Achromatopsia (no color) | #979797 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40AA68
#40AA68
oklch(66% 0.138 152.9)
- #C370B6
#C370B6
oklch(66% 0.137 333)
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 #40AA68, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seaweed Green #35AD6B ΔE 0.009
- Jade Green #2BAF6A ΔE 0.016
- Algae #54AC68 ΔE 0.017
- Dark Seafoam Green #3EAF76 ΔE 0.020
- Bluey Green #2BB179 ΔE 0.024
- Jade #1FA774 ΔE 0.025
- Medium Sea Green #3CB371 ΔE 0.025
- Dark Pastel Green #56AE57 ΔE 0.030
Use #40AA68 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.