#40B250
Closest named color: Medium Green (#39AD48). oklch(67.7% 0.172 145.8), rgb(64, 178, 80).
Aa
Black text reads best on this color (7.70:1).
About this color
#40B250 is a medium-light, vivid green. In OKLCH its lightness is 68%, its chroma 0.172 and its hue 146°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Green (#39AD48), ΔE 0.017 away. Black text reads best on it, at 7.70:1.
| Hue family | Greens |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.172) |
| Temperature | in between |
| Nearest name | Medium Green (#39AD48) |
| Black text | 7.70:1 |
| White text | 2.72:1 |
Values
| HEX | #40B250 |
| RGB | rgb(64, 178, 80) |
| HSL | hsl(128, 47%, 47%) |
| OKLCH | oklch(67.7% 0.172 145.8) |
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 #40B250 | 2.72:1 | Fails | Lc -57.6 | Large or bold text, headings |
| Black text on #40B250 | 7.70:1 | AAA | Lc 51.6 | Large or bold text, headings |
| #40B250 text on white | 2.72:1 | Fails | Lc 52.4 | Large or bold text, headings |
| #40B250 text on black | 7.70:1 | AAA | Lc -49.5 | 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
#DDF0DE
oklch(93.6% 0.031 146.8)
-
Step 200
200
#C1E4C2
oklch(88.4% 0.059 145.8)
-
Step 300
300
#93D397
oklch(80.8% 0.106 146)
-
Step 400
400 (this color)
#40B250
oklch(67.7% 0.172 145.8)
-
Step 500
500
#00A633
oklch(63.1% 0.194 145.8)
-
Step 600
600
#008C2A
oklch(55.7% 0.171 145.8)
-
Step 700
700
#007622
oklch(49.2% 0.151 145.8)
-
Step 800
800
#00611A
oklch(42.9% 0.132 145.8)
-
Step 900
900
#005114
oklch(37.8% 0.117 145.7)
-
Step 950
950
#003009
oklch(26.9% 0.082 146)
#40B250 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) | #B5A347 | 0.131 |
| Deuteranopia (no green cones) | #A69957 | 0.129 |
| Tritanopia (no blue cones) | #22AE9C | 0.103 |
| Achromatopsia (no color) | #9D9D9D | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40B250
#40B250
oklch(67.7% 0.172 145.8)
- #CC6DCF
#CC6DCF
oklch(67.8% 0.171 326.1)
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 #40B250, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Green #39AD48 ΔE 0.017
- Shamrock #01B44C ΔE 0.022
- Dark Pastel Green #56AE57 ΔE 0.022
- Cool Green #33B864 ΔE 0.023
- Leafy Green #51B73B ΔE 0.028
- Grass #5CAC2D ΔE 0.030
- Mid Green #50A747 ΔE 0.030
- Jade Green #2BAF6A ΔE 0.034
Use #40B250 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.