#40BF2B
Closest named color: Frog Green (#58BC08). oklch(70.8% 0.213 141.2), rgb(64, 191, 43).
Aa
Black text reads best on this color (8.70:1).
About this color
#40BF2B is a medium-light, vivid green. In OKLCH its lightness is 71%, its chroma 0.213 and its hue 141°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Frog Green (#58BC08), ΔE 0.017 away. Black text reads best on it, at 8.70:1.
| Hue family | Greens |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.213) |
| Temperature | in between |
| Nearest name | Frog Green (#58BC08) |
| Black text | 8.70:1 |
| White text | 2.41:1 |
Values
| HEX | #40BF2B |
| RGB | rgb(64, 191, 43) |
| HSL | hsl(111, 63%, 46%) |
| OKLCH | oklch(70.8% 0.213 141.2) |
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 #40BF2B | 2.41:1 | Fails | Lc -52.0 | Large or bold text, headings |
| Black text on #40BF2B | 8.70:1 | AAA | Lc 57.0 | Large or bold text, headings |
| #40BF2B text on white | 2.41:1 | Fails | Lc 47.0 | Large or bold text, headings |
| #40BF2B text on black | 8.70:1 | AAA | Lc -55.0 | 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
#EFF9EE
oklch(97.2% 0.018 142.8)
-
Step 100
100
#DCF1D9
oklch(93.6% 0.039 141.7)
-
Step 200
200
#BFE6B8
oklch(88.5% 0.074 140.8)
-
Step 300
300
#8FD684
oklch(80.9% 0.133 141.1)
-
Step 400
400 (this color)
#40BF2B
oklch(70.8% 0.213 141.2)
-
Step 500
500
#23A600
oklch(63.2% 0.209 141.2)
-
Step 600
600
#1C8B00
oklch(55.5% 0.183 141.2)
-
Step 700
700
#167500
oklch(49% 0.162 141.2)
-
Step 800
800
#106000
oklch(42.6% 0.141 141.2)
-
Step 900
900
#0C5000
oklch(37.6% 0.124 141.1)
-
Step 950
950
#043000
oklch(26.9% 0.089 141.3)
#40BF2B 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) | #C4AD00 | 0.146 |
| Deuteranopia (no green cones) | #B5A33C | 0.147 |
| Tritanopia (no blue cones) | #27B9A3 | 0.140 |
| Achromatopsia (no color) | #A7A7A7 | 0.214 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40BF2B
#40BF2B
oklch(70.8% 0.213 141.2)
- #DA6AEF
#DA6AEF
oklch(70.6% 0.213 321.1)
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 #40BF2B, closest first.
No curated palette has a color within ΔE 0.04 of #40BF2B.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Frog Green #58BC08 ΔE 0.017
- Shamrock Green #02C14D ΔE 0.026
- Leafy Green #51B73B ΔE 0.029
- Lime Green #32CD32 ΔE 0.038
- Dark Lime Green #7EBD01 ΔE 0.049
- Shamrock #01B44C ΔE 0.049
- Apple #6ECB3C ΔE 0.054
- Grass #5CAC2D ΔE 0.055
Use #40BF2B 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.