#40B438#40B438

#40B438 is a light, vivid green. Relative luminance 0.340; OKLCH L 68.0% C 0.193 H 142.2°. Best body text is #000000 at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#40B438
RGB	rgb(64, 180, 56)
HSL	hsl(116, 53%, 46%)
HSV	hsv(116, 69%, 71%)
CMYK	cmyk(64.4%, 0%, 68.9%, 29.4%)
CIE-LAB	lab(64.98, -55.92, 51.54)
CIE-LCH	lch(64.98, 76.05, 137.33°)
OKLab	oklab(67.96% -0.1523 0.1181)
OKLCH	oklch(67.96% 0.193 142.2)
XYZ	xyz(19.1484, 34.0161, 9.2973)
Luminance	0.3402 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B438 #AC38B4

analogous

#7EB438 #40B438 #38B46E

triadic

#40B438 #3840B4 #B43840

tetradic

#40B438 #387EB4 #AC38B4 #B46E38

square

#40B438 #387EB4 #AC38B4 #B46E38

split-complementary

#40B438 #6E38B4 #B4387E

monochromatic

#1F571B #2F8529 #40B438 #64CD5D #91DB8B

Accessibility & contrast

On white

2.69

#40B438 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.80

#40B438 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B438

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B438	#FFFFFF	#000000	##000000
##40B438	1.00	2.69	7.80	7.80
#FFFFFF	2.69	1.00	21.00	21.00
#000000	7.80	21.00	1.00	1.00
##000000	7.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8A326

Deuteranopia (green-blind)

#AA9A44

Tritanopia (blue-blind)

#29AF9B

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #40b438;
/* rgb */ color: rgb(64, 180, 56);
/* oklch */ color: oklch(68.0% 0.193 142.2);

Tailwind

colors: {
  custom: {
    50: '#83cb75',
    500: '#40b438',
    950: '#000000',
  },
}

SCSS

$custom: #40b438;
$custom-light: #83cb75;
$custom-dark: #000000;

JSON

{
  "hex": "#40b438",
  "rgb": {
    "r": 64,
    "g": 180,
    "b": 56
  },
  "hsl": {
    "h": 116.129,
    "s": 52.542,
    "l": 46.275
  },
  "oklch": {
    "l": 0.67956,
    "c": 0.19272,
    "h": 142.2
  },
  "luminance": 0.34018
}

Semantic roles & 50–950 ramp

primary

#40B438

secondary

#C182C5

accent

#4CDCD3

background

#F8FCF7

surface

#F0F9ED

border

#CBD2C8

text

#0C1309

muted

#7D827B

Preview Lab

Preview with #40B438

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

Preview Lab → · Contrast checker → · Palette generator →