#40BB71
Closest named color: Dark Mint (#48C072). oklch(70.6% 0.153 153.2), rgb(64, 187, 113).
Aa
Black text reads best on this color (8.56:1).
About this color
#40BB71 is a medium-light, vivid green. In OKLCH its lightness is 71%, its chroma 0.153 and its hue 153°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Mint (#48C072), ΔE 0.016 away. Black text reads best on it, at 8.56:1.
| Hue family | Greens |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.153) |
| Temperature | in between |
| Nearest name | Dark Mint (#48C072) |
| Black text | 8.56:1 |
| White text | 2.45:1 |
Values
| HEX | #40BB71 |
| RGB | rgb(64, 187, 113) |
| HSL | hsl(144, 49%, 49%) |
| OKLCH | oklch(70.6% 0.153 153.2) |
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 #40BB71 | 2.45:1 | Fails | Lc -52.9 | Large or bold text, headings |
| Black text on #40BB71 | 8.56:1 | AAA | Lc 56.1 | Large or bold text, headings |
| #40BB71 text on white | 2.45:1 | Fails | Lc 47.9 | Large or bold text, headings |
| #40BB71 text on black | 8.56:1 | AAA | Lc -54.1 | 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
#EFF8F1
oklch(97% 0.013 152.6)
-
Step 100
100
#DDF0E1
oklch(93.7% 0.028 151.9)
-
Step 200
200
#BFE4C9
oklch(88.5% 0.053 153.5)
-
Step 300
300
#90D3A4
oklch(80.9% 0.095 153.3)
-
Step 400
400 (this color)
#40BB71
oklch(70.6% 0.153 153.2)
-
Step 500
500
#00A458
oklch(63% 0.161 153.3)
-
Step 600
600
#008A49
oklch(55.5% 0.142 153.3)
-
Step 700
700
#00743C
oklch(49% 0.126 153.1)
-
Step 800
800
#005F30
oklch(42.6% 0.109 153.1)
-
Step 900
900
#005027
oklch(37.8% 0.098 152.9)
-
Step 950
950
#003015
oklch(27.1% 0.07 152.9)
#40BB71 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) | #BBAC6C | 0.133 |
| Deuteranopia (no green cones) | #ABA176 | 0.130 |
| Tritanopia (no blue cones) | #00B9A8 | 0.077 |
| Achromatopsia (no color) | #A5A5A5 | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40BB71
#40BB71
oklch(70.6% 0.153 153.2)
- #D879C9
#D879C9
oklch(70.7% 0.154 333.2)
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 #40BB71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Mint #48C072 ΔE 0.016
- Dark Mint Green #20C073 ΔE 0.017
- Cool Green #33B864 ΔE 0.019
- Medium Sea Green #3CB371 ΔE 0.024
- Algae Green #21C36F ΔE 0.026
- Dark Seafoam #1FB57A ΔE 0.028
- Green Teal #0CB577 ΔE 0.029
- Boring Green #63B365 ΔE 0.029
Use #40BB71 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.