#40781B#40781B

#40781B is a mid, vivid yellow-green. Relative luminance 0.146; OKLCH L 51.5% C 0.137 H 135.8°. Best body text is #FFFFFF at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#40781B
RGB	rgb(64, 120, 27)
HSL	hsl(96, 63%, 29%)
HSV	hsv(96, 78%, 47%)
CMYK	cmyk(46.7%, 0%, 77.5%, 52.9%)
CIE-LAB	lab(45.08, -35.15, 42.46)
CIE-LCH	lch(45.08, 55.13, 129.62°)
OKLab	oklab(51.49% -0.098 0.0952)
OKLCH	oklch(51.49% 0.137 135.8)
XYZ	xyz(9.0284, 14.6015, 3.3793)
Luminance	0.1460 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40781B #531B78

analogous

#6F781B #40781B #1B7825

triadic

#40781B #1B4078 #781B40

tetradic

#40781B #1B6F78 #531B78 #78251B

square

#40781B #1B6F78 #531B78 #78251B

split-complementary

#40781B #251B78 #781B6F

monochromatic

#0D1906 #254610 #40781B #5BAA26 #77D33B

Accessibility & contrast

On white

5.36

#40781B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.92

#40781B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #40781B

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40781B	#FFFFFF	#000000	##FFFFFF
##40781B	1.00	5.36	3.92	5.36
#FFFFFF	5.36	1.00	21.00	1.00
#000000	3.92	21.00	1.00	21.00
##FFFFFF	5.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C6E08

Deuteranopia (green-blind)

#756925

Tritanopia (blue-blind)

#3E7366

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #40781b;
/* rgb */ color: rgb(64, 120, 27);
/* oklch */ color: oklch(51.5% 0.137 135.8);

Tailwind

colors: {
  custom: {
    50: '#7a9f5f',
    500: '#40781b',
    950: '#000000',
  },
}

SCSS

$custom: #40781b;
$custom-light: #7a9f5f;
$custom-dark: #000000;

JSON

{
  "hex": "#40781b",
  "rgb": {
    "r": 64,
    "g": 120,
    "b": 27
  },
  "hsl": {
    "h": 96.129,
    "s": 63.265,
    "l": 28.824
  },
  "oklch": {
    "l": 0.51485,
    "c": 0.13659,
    "h": 135.8
  },
  "luminance": 0.14602
}

Semantic roles & 50–950 ramp

primary

#40781B

secondary

#8243AC

accent

#41E6A5

background

#F7F9F5

surface

#EEF2E9

border

#C9CCC5

text

#0A0E05

muted

#7C7E79

Preview Lab

Preview with #40781B

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

Preview Lab → · Contrast checker → · Palette generator →