#40B558#40B558

#40B558 is a light, vivid green. Relative luminance 0.348; OKLCH L 68.6% C 0.168 H 147.3°. Best body text is #000000 at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#40B558
RGB	rgb(64, 181, 88)
HSL	hsl(132, 48%, 48%)
HSV	hsv(132, 65%, 71%)
CMYK	cmyk(64.6%, 0%, 51.4%, 29%)
CIE-LAB	lab(65.62, -52.47, 37.71)
CIE-LCH	lch(65.62, 64.62, 144.29°)
OKLab	oklab(68.6% -0.1416 0.0911)
OKLCH	oklch(68.6% 0.168 147.3)
XYZ	xyz(20.3983, 34.8402, 14.8805)
Luminance	0.3484 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B558 #B5409D

analogous

#62B540 #40B558 #40B592

triadic

#40B558 #5840B5 #B55840

tetradic

#40B558 #4062B5 #B5409D #B59240

square

#40B558 #4062B5 #B5409D #B59240

split-complementary

#40B558 #9240B5 #B54062

monochromatic

#205B2C #308842 #40B558 #68CA7C #96DAA4

Accessibility & contrast

On white

2.64

#40B558 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.97

#40B558 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B558

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B558	#FFFFFF	#000000	##000000
##40B558	1.00	2.64	7.97	7.97
#FFFFFF	2.64	1.00	21.00	21.00
#000000	7.97	21.00	1.00	1.00
##000000	7.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7A650

Deuteranopia (green-blind)

#A99B5F

Tritanopia (blue-blind)

#1CB1A0

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #40b558;
/* rgb */ color: rgb(64, 181, 88);
/* oklch */ color: oklch(68.6% 0.168 147.3);

Tailwind

colors: {
  custom: {
    50: '#82cc89',
    500: '#40b558',
    950: '#000000',
  },
}

SCSS

$custom: #40b558;
$custom-light: #82cc89;
$custom-dark: #000000;

JSON

{
  "hex": "#40b558",
  "rgb": {
    "r": 64,
    "g": 181,
    "b": 88
  },
  "hsl": {
    "h": 132.308,
    "s": 47.755,
    "l": 48.039
  },
  "oklch": {
    "l": 0.68598,
    "c": 0.16839,
    "h": 147.3
  },
  "luminance": 0.34842
}

Semantic roles & 50–950 ramp

primary

#40B558

secondary

#C58BB9

accent

#50BCD7

background

#F8FCF8

surface

#F0F9F0

border

#CBD2CB

text

#0C130C

muted

#7D827D

Preview Lab

Preview with #40B558

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

Preview Lab → · Contrast checker → · Palette generator →