#40B04D
Closest named color: Medium Green (#39AD48). oklch(67.1% 0.172 145.3), rgb(64, 176, 77).
Aa
Black text reads best on this color (7.53:1).
About this color
#40B04D is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.172 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Green (#39AD48), ΔE 0.011 away. Black text reads best on it, at 7.53:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.172) |
| Temperature | in between |
| Nearest name | Medium Green (#39AD48) |
| Black text | 7.53:1 |
| White text | 2.78:1 |
Values
| HEX | #40B04D |
| RGB | rgb(64, 176, 77) |
| HSL | hsl(127, 47%, 47%) |
| OKLCH | oklch(67.1% 0.172 145.3) |
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 #40B04D | 2.78:1 | Fails | Lc -58.6 | Large or bold text, headings |
| Black text on #40B04D | 7.53:1 | AAA | Lc 50.7 | Large or bold text, headings |
| #40B04D text on white | 2.78:1 | Fails | Lc 53.3 | Large or bold text, headings |
| #40B04D text on black | 7.53:1 | AAA | Lc -48.5 | 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 400.
-
Step 50
50
#F0F8F0
oklch(97.1% 0.014 145.5)
-
Step 100
100
#DEF0DE
oklch(93.7% 0.031 145.3)
-
Step 200
200
#C1E4C2
oklch(88.4% 0.059 145.8)
-
Step 300
300
#94D396
oklch(80.8% 0.106 145.3)
-
Step 400
400 (this color)
#40B04D
oklch(67.1% 0.172 145.3)
-
Step 500
500
#00A62F
oklch(63% 0.197 145.3)
-
Step 600
600
#008C26
oklch(55.6% 0.174 145.3)
-
Step 700
700
#00761F
oklch(49.2% 0.153 145.3)
-
Step 800
800
#006118
oklch(42.8% 0.133 145.4)
-
Step 900
900
#005112
oklch(37.8% 0.118 145.3)
-
Step 950
950
#003007
oklch(26.9% 0.084 145.2)
#40B04D 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) | #B3A144 | 0.130 |
| Deuteranopia (no green cones) | #A59755 | 0.130 |
| Tritanopia (no blue cones) | #24AC9A | 0.104 |
| Achromatopsia (no color) | #9B9B9B | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40B04D
#40B04D
oklch(67.1% 0.172 145.3)
- #C96BCE
#C96BCE
oklch(67.1% 0.172 325.4)
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 #40B04D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Green #39AD48 ΔE 0.011
- Shamrock #01B44C ΔE 0.022
- Dark Pastel Green #56AE57 ΔE 0.023
- Mid Green #50A747 ΔE 0.025
- Grass #5CAC2D ΔE 0.028
- Cool Green #33B864 ΔE 0.028
- Leafy Green #51B73B ΔE 0.031
- Fern #63A950 ΔE 0.034
Use #40B04D 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.