#40B554#40B554

#40B554 is a light, vivid green. Relative luminance 0.348; OKLCH L 68.5% C 0.172 H 146.4°. Best body text is #000000 at 7.96:1 contrast (WCAG AA passes).

Color values

HEX	#40B554
RGB	rgb(64, 181, 84)
HSL	hsl(130, 48%, 48%)
HSV	hsv(130, 65%, 71%)
CMYK	cmyk(64.6%, 0%, 53.6%, 29%)
CIE-LAB	lab(65.57, -53.05, 39.62)
CIE-LCH	lch(65.57, 66.21, 143.24°)
OKLab	oklab(68.54% -0.1433 0.0951)
OKLCH	oklch(68.54% 0.172 146.4)
XYZ	xyz(20.2371, 34.7758, 14.0317)
Luminance	0.3478 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B554 #B540A1

analogous

#67B540 #40B554 #40B58E

triadic

#40B554 #5440B5 #B55440

tetradic

#40B554 #4067B5 #B540A1 #B58E40

square

#40B554 #4067B5 #B540A1 #B58E40

split-complementary

#40B554 #8E40B5 #B54067

monochromatic

#205B2A #30883F #40B554 #68CA79 #96DAA1

Accessibility & contrast

On white

2.64

#40B554 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.96

#40B554 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B554

7.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B554	#FFFFFF	#000000	##000000
##40B554	1.00	2.64	7.96	7.96
#FFFFFF	2.64	1.00	21.00	21.00
#000000	7.96	21.00	1.00	1.00
##000000	7.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7A54B

Deuteranopia (green-blind)

#A99B5B

Tritanopia (blue-blind)

#1EB19F

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #40b554;
/* rgb */ color: rgb(64, 181, 84);
/* oklch */ color: oklch(68.5% 0.172 146.4);

Tailwind

colors: {
  custom: {
    50: '#82cc86',
    500: '#40b554',
    950: '#000000',
  },
}

SCSS

$custom: #40b554;
$custom-light: #82cc86;
$custom-dark: #000000;

JSON

{
  "hex": "#40b554",
  "rgb": {
    "r": 64,
    "g": 181,
    "b": 84
  },
  "hsl": {
    "h": 130.256,
    "s": 47.755,
    "l": 48.039
  },
  "oklch": {
    "l": 0.6854,
    "c": 0.17196,
    "h": 146.4
  },
  "luminance": 0.34778
}

Semantic roles & 50–950 ramp

primary

#40B554

secondary

#C58BBB

accent

#50C0D7

background

#F8FCF8

surface

#F0F9EF

border

#CBD2CA

text

#0C130B

muted

#7D827C

Preview Lab

Preview with #40B554

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

Preview Lab → · Contrast checker → · Palette generator →