#40B778#40B778

#40B778 is a light, vivid green. Relative luminance 0.363; OKLCH L 69.7% C 0.141 H 156.3°. Best body text is #000000 at 8.26:1 contrast (WCAG AA passes).

Color values

HEX	#40B778
RGB	rgb(64, 183, 120)
HSL	hsl(148, 48%, 48%)
HSV	hsv(148, 65%, 72%)
CMYK	cmyk(65%, 0%, 34.4%, 28.2%)
CIE-LAB	lab(66.76, -47.70, 22.56)
CIE-LCH	lch(66.76, 52.77, 154.69°)
OKLab	oklab(69.69% -0.1294 0.0568)
OKLCH	oklch(69.69% 0.141 156.3)
XYZ	xyz(22.4360, 36.3107, 23.5919)
Luminance	0.3631 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B778 #B7407F

analogous

#44B740 #40B778 #40B7B3

triadic

#40B778 #7840B7 #B77840

tetradic

#40B778 #4044B7 #B7407F #B7B340

square

#40B778 #4044B7 #B7407F #B7B340

split-complementary

#40B778 #B340B7 #B74044

monochromatic

#205C3D #308A5A #40B778 #69CB97 #97DBB7

Accessibility & contrast

On white

2.54

#40B778 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.26

#40B778 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B778

8.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B778	#FFFFFF	#000000	##000000
##40B778	1.00	2.54	8.26	8.26
#FFFFFF	2.54	1.00	21.00	21.00
#000000	8.26	21.00	1.00	1.00
##000000	8.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6A974

Deuteranopia (green-blind)

#A69E7C

Tritanopia (blue-blind)

#00B5A7

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #40b778;
/* rgb */ color: rgb(64, 183, 120);
/* oklch */ color: oklch(69.7% 0.141 156.3);

Tailwind

colors: {
  custom: {
    50: '#82cd9f',
    500: '#40b778',
    950: '#000000',
  },
}

SCSS

$custom: #40b778;
$custom-light: #82cd9f;
$custom-dark: #000000;

JSON

{
  "hex": "#40b778",
  "rgb": {
    "r": 64,
    "g": 183,
    "b": 120
  },
  "hsl": {
    "h": 148.235,
    "s": 48.178,
    "l": 48.431
  },
  "oklch": {
    "l": 0.69695,
    "c": 0.14135,
    "h": 156.3
  },
  "luminance": 0.36313
}

Semantic roles & 50–950 ramp

primary

#40B778

secondary

#C68DAB

accent

#5098D8

background

#F8FCF9

surface

#F0F9F2

border

#CBD2CC

text

#0C140E

muted

#7D827E

Preview Lab

Preview with #40B778

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →