#40B23F#40B23F

#40B23F is a light, vivid green. Relative luminance 0.333; OKLCH L 67.5% C 0.185 H 143.1°. Best body text is #000000 at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#40B23F
RGB	rgb(64, 178, 63)
HSL	hsl(119, 48%, 47%)
HSV	hsv(119, 65%, 70%)
CMYK	cmyk(64%, 0%, 64.6%, 30.2%)
CIE-LAB	lab(64.39, -54.52, 47.99)
CIE-LCH	lch(64.39, 72.63, 138.65°)
OKLab	oklab(67.49% -0.1481 0.1114)
OKLCH	oklch(67.49% 0.185 143.1)
XYZ	xyz(18.9309, 33.2878, 10.1292)
Luminance	0.3329 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B23F #B13FB2

analogous

#7AB23F #40B23F #3FB277

triadic

#40B23F #3F40B2 #B23F40

tetradic

#40B23F #3F7AB2 #B13FB2 #B2773F

square

#40B23F #3F7AB2 #B13FB2 #B2773F

split-complementary

#40B23F #773FB2 #B23F7A

monochromatic

#1F581F #30852F #40B23F #66C966 #93D993

Accessibility & contrast

On white

2.74

#40B23F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.66

#40B23F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B23F

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B23F	#FFFFFF	#000000	##000000
##40B23F	1.00	2.74	7.66	7.66
#FFFFFF	2.74	1.00	21.00	21.00
#000000	7.66	21.00	1.00	1.00
##000000	7.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6A231

Deuteranopia (green-blind)

#A89849

Tritanopia (blue-blind)

#28AD9A

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #40b23f;
/* rgb */ color: rgb(64, 178, 63);
/* oklch */ color: oklch(67.5% 0.185 143.1);

Tailwind

colors: {
  custom: {
    50: '#83ca79',
    500: '#40b23f',
    950: '#000000',
  },
}

SCSS

$custom: #40b23f;
$custom-light: #83ca79;
$custom-dark: #000000;

JSON

{
  "hex": "#40b23f",
  "rgb": {
    "r": 64,
    "g": 178,
    "b": 63
  },
  "hsl": {
    "h": 119.478,
    "s": 47.718,
    "l": 47.255
  },
  "oklch": {
    "l": 0.67493,
    "c": 0.18535,
    "h": 143.1
  },
  "luminance": 0.3329
}

Semantic roles & 50–950 ramp

primary

#40B23F

secondary

#C389C4

accent

#50D7D6

background

#F8FCF7

surface

#F0F8EE

border

#CBD1C9

text

#0C1309

muted

#7D827B

Preview Lab

Preview with #40B23F

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

Preview Lab → · Contrast checker → · Palette generator →