#40A55E
Closest named color: Seaweed Green (#35AD6B). oklch(64.5% 0.141 150.3), rgb(64, 165, 94).
Aa
Black text reads best on this color (6.76:1).
About this color
#40A55E is a medium-light, vivid green. In OKLCH its lightness is 64%, its chroma 0.141 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Seaweed Green (#35AD6B), ΔE 0.023 away. Black text reads best on it, at 6.76:1.
| Hue family | Greens |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.141) |
| Temperature | in between |
| Nearest name | Seaweed Green (#35AD6B) |
| Black text | 6.76:1 |
| White text | 3.10:1 |
Values
| HEX | #40A55E |
| RGB | rgb(64, 165, 94) |
| HSL | hsl(138, 44%, 45%) |
| OKLCH | oklch(64.5% 0.141 150.3) |
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 #40A55E | 3.10:1 | AA large text | Lc -63.1 | Content text, not long reading |
| Black text on #40A55E | 6.76:1 | AA | Lc 46.3 | Large or bold text, headings |
| #40A55E text on white | 3.10:1 | AA large text | Lc 57.7 | Large or bold text, headings |
| #40A55E text on black | 6.76:1 | AA | Lc -44.0 | Non-text elements, placeholder text |
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
#F1F7F2
oklch(97% 0.009 150.7)
-
Step 100
100
#E1EEE3
oklch(93.6% 0.02 150.1)
-
Step 200
200
#C8E1CC
oklch(88.5% 0.039 150)
-
Step 300
300
#A1CEAA
oklch(81% 0.069 150.6)
-
Step 400
400
#6BB47C
oklch(70.7% 0.11 150.3)
-
Step 500
500 (this color)
#40A55E
oklch(64.5% 0.141 150.3)
-
Step 600
600
#008B3F
oklch(55.7% 0.153 150.2)
-
Step 700
700
#007534
oklch(49.2% 0.135 150.2)
-
Step 800
800
#00602A
oklch(42.8% 0.117 150.4)
-
Step 900
900
#114F26
oklch(37.8% 0.092 150.3)
-
Step 950
950
#0D2E17
oklch(27% 0.057 150.7)
#40A55E 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) | #A69859 | 0.117 |
| Deuteranopia (no green cones) | #998F63 | 0.115 |
| Tritanopia (no blue cones) | #21A294 | 0.078 |
| Achromatopsia (no color) | #929292 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40A55E
#40A55E
oklch(64.5% 0.141 150.3)
- #BD6BB6
#BD6BB6
oklch(64.5% 0.142 330.2)
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 #40A55E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seaweed Green #35AD6B ΔE 0.023
- Muted Green #5FA052 ΔE 0.026
- Jade Green #2BAF6A ΔE 0.028
- Jade #1FA774 ΔE 0.028
- Mid Green #50A747 ΔE 0.029
- Algae #54AC68 ΔE 0.029
- Fern #63A950 ΔE 0.035
- Dark Pastel Green #56AE57 ΔE 0.036
Use #40A55E 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.