#40BC77
Closest named color: Dark Mint (#48C072). oklch(71% 0.149 155), rgb(64, 188, 119).
Aa
Black text reads best on this color (8.67:1).
About this color
#40BC77 is a medium-light, vivid green. In OKLCH its lightness is 71%, its chroma 0.149 and its hue 155°. 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 8.67:1.
| Hue family | Greens |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.149) |
| Temperature | in between |
| Nearest name | Dark Mint (#48C072) |
| Black text | 8.67:1 |
| White text | 2.42:1 |
Values
| HEX | #40BC77 |
| RGB | rgb(64, 188, 119) |
| HSL | hsl(147, 49%, 49%) |
| OKLCH | oklch(71% 0.149 155) |
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 #40BC77 | 2.42:1 | Fails | Lc -52.3 | Large or bold text, headings |
| Black text on #40BC77 | 8.67:1 | AAA | Lc 56.7 | Large or bold text, headings |
| #40BC77 text on white | 2.42:1 | Fails | Lc 47.3 | Large or bold text, headings |
| #40BC77 text on black | 8.67:1 | AAA | Lc -54.7 | 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
#EFF8F2
oklch(97.1% 0.012 157)
-
Step 100
100
#DDF0E2
oklch(93.7% 0.027 153.9)
-
Step 200
200
#BFE4CA
oklch(88.5% 0.053 154.6)
-
Step 300
300
#8FD3A6
oklch(80.9% 0.094 154.8)
-
Step 400
400 (this color)
#40BC77
oklch(71% 0.149 155)
-
Step 500
500
#00A45D
oklch(63.1% 0.157 154.8)
-
Step 600
600
#008A4E
oklch(55.6% 0.137 155)
-
Step 700
700
#007440
oklch(49.1% 0.122 154.8)
-
Step 800
800
#005F34
oklch(42.6% 0.105 155.1)
-
Step 900
900
#004F2A
oklch(37.6% 0.093 154.9)
-
Step 950
950
#003017
oklch(27.1% 0.068 154.6)
#40BC77 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) | #BBAD72 | 0.132 |
| Deuteranopia (no green cones) | #ABA27B | 0.129 |
| Tritanopia (no blue cones) | #00BAAA | 0.073 |
| Achromatopsia (no color) | #A7A7A7 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40BC77
#40BC77
oklch(71% 0.149 155)
- #D97BC6
#D97BC6
oklch(71% 0.149 335)
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 #40BC77, 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 0.019
- Medium Sea Green #3CB371 ΔE 0.026
- Cool Green #33B864 ΔE 0.026
- Dark Seafoam #1FB57A ΔE 0.028
- Algae Green #21C36F ΔE 0.028
- Greenblue #23C48B ΔE 0.028
- Green Blue #01C08D ΔE 0.029
Use #40BC77 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.