#4B781B#4B781B

#4B781B is a mid, vivid yellow-green. Relative luminance 0.150; OKLCH L 52.1% C 0.131 H 132.3°. Best body text is #FFFFFF at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#4B781B
RGB	rgb(75, 120, 27)
HSL	hsl(89, 63%, 29%)
HSV	hsv(89, 78%, 47%)
CMYK	cmyk(37.5%, 0%, 77.5%, 52.9%)
CIE-LAB	lab(45.64, -31.12, 43.20)
CIE-LCH	lch(45.64, 53.25, 125.77°)
OKLab	oklab(52.1% -0.0878 0.0965)
OKLCH	oklch(52.1% 0.131 132.3)
XYZ	xyz(9.8158, 15.0075, 3.4162)
Luminance	0.1501 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B781B #481B78

analogous

#78771B #4B781B #1D781B

triadic

#4B781B #1B4B78 #781B4B

tetradic

#4B781B #1B7877 #481B78 #781B1D

square

#4B781B #1B7877 #481B78 #781B1D

split-complementary

#4B781B #1B1D78 #771B78

monochromatic

#101906 #2C4610 #4B781B #6AAA26 #89D33B

Accessibility & contrast

On white

5.25

#4B781B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.00

#4B781B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B781B

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B781B	#FFFFFF	#000000	##FFFFFF
##4B781B	1.00	5.25	4.00	5.25
#FFFFFF	5.25	1.00	21.00	1.00
#000000	4.00	21.00	1.00	21.00
##FFFFFF	5.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D6E07

Deuteranopia (green-blind)

#776B24

Tritanopia (blue-blind)

#4C7366

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #4b781b;
/* rgb */ color: rgb(75, 120, 27);
/* oklch */ color: oklch(52.1% 0.131 132.3);

Tailwind

colors: {
  custom: {
    50: '#819f5f',
    500: '#4b781b',
    950: '#000000',
  },
}

SCSS

$custom: #4b781b;
$custom-light: #819f5f;
$custom-dark: #000000;

JSON

{
  "hex": "#4b781b",
  "rgb": {
    "r": 75,
    "g": 120,
    "b": 27
  },
  "hsl": {
    "h": 89.032,
    "s": 63.265,
    "l": 28.824
  },
  "oklch": {
    "l": 0.52096,
    "c": 0.1305,
    "h": 132.3
  },
  "luminance": 0.15008
}

Semantic roles & 50–950 ramp

primary

#4B781B

secondary

#7643AC

accent

#41E691

background

#F8F9F5

surface

#EFF2EA

border

#CACCC6

text

#0B0E05

muted

#7C7E79

Preview Lab

Preview with #4B781B

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

Preview Lab → · Contrast checker → · Palette generator →