#40A455
Closest named color: Mid Green (#50A747). oklch(64.1% 0.148 147.8), rgb(64, 164, 85).
Aa
Black text reads best on this color (6.65:1).
About this color
#40A455 is a medium-light, vivid green. In OKLCH its lightness is 64%, its chroma 0.148 and its hue 148°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Mid Green (#50A747), ΔE 0.022 away. Black text reads best on it, at 6.65:1.
| Hue family | Greens |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.148) |
| Temperature | in between |
| Nearest name | Mid Green (#50A747) |
| Black text | 6.65:1 |
| White text | 3.15:1 |
Values
| HEX | #40A455 |
| RGB | rgb(64, 164, 85) |
| HSL | hsl(133, 44%, 45%) |
| OKLCH | oklch(64.1% 0.148 147.8) |
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 #40A455 | 3.15:1 | AA large text | Lc -63.7 | Content text, not long reading |
| Black text on #40A455 | 6.65:1 | AA | Lc 45.7 | Large or bold text, headings |
| #40A455 text on white | 3.15:1 | AA large text | Lc 58.3 | Large or bold text, headings |
| #40A455 text on black | 6.65:1 | AA | Lc -43.4 | 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
#E1EEE2
oklch(93.6% 0.021 147.6)
-
Step 200
200
#C8E1CA
oklch(88.5% 0.041 147.5)
-
Step 300
300
#A2CEA6
oklch(80.9% 0.073 147.3)
-
Step 400
400
#6CB476
oklch(70.6% 0.116 147.5)
-
Step 500
500 (this color)
#40A455
oklch(64.1% 0.148 147.8)
-
Step 600
600
#038B35
oklch(55.5% 0.161 147.7)
-
Step 700
700
#00752B
oklch(49% 0.143 147.8)
-
Step 800
800
#016022
oklch(42.7% 0.124 147.7)
-
Step 900
900
#124F21
oklch(37.8% 0.097 147.7)
-
Step 950
950
#0D2E14
oklch(26.9% 0.061 148)
#40A455 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) | #A6964F | 0.119 |
| Deuteranopia (no green cones) | #998D5A | 0.118 |
| Tritanopia (no blue cones) | #26A191 | 0.085 |
| Achromatopsia (no color) | #919191 | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40A455
#40A455
oklch(64.1% 0.148 147.8)
- #BB68BA
#BB68BA
oklch(64% 0.149 327.6)
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 #40A455, closest first.
No curated palette has a color within ΔE 0.04 of #40A455.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Green #50A747 ΔE 0.022
- Muted Green #5FA052 ΔE 0.026
- Seaweed Green #35AD6B ΔE 0.031
- Jade Green #2BAF6A ΔE 0.033
- Medium Green #39AD48 ΔE 0.034
- Fern #63A950 ΔE 0.035
- Algae #54AC68 ΔE 0.036
- Dark Pastel Green #56AE57 ΔE 0.036
Use #40A455 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.