#4FB41B#4FB41B

#4FB41B is a light, highly saturated yellow-green. Relative luminance 0.344; OKLCH L 68.3% C 0.202 H 138.1°. Best body text is #000000 at 7.88:1 contrast (WCAG AA passes).

Color values

HEX#4FB41B
RGBrgb(79, 180, 27)
HSLhsl(100, 74%, 41%)
HSVhsv(100, 85%, 71%)
CMYKcmyk(56.1%, 0%, 85%, 29.4%)
CIE-LABlab(65.26, -54.16, 61.42)
CIE-LCHlch(65.26, 81.89, 131.41°)
OKLaboklab(68.27% -0.15 0.1347)
OKLCHoklch(68.27% 0.202 138.1)
XYZxyz(19.7428, 34.3823, 6.6328)
Luminance0.3438 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4FB41B #801BB4
analogous
#9BB41B #4FB41B #1BB434
triadic
#4FB41B #1B4FB4 #B41B4F
tetradic
#4FB41B #1B9BB4 #801BB4 #B4341B
square
#4FB41B #1B9BB4 #801BB4 #B4341B
split-complementary
#4FB41B #341BB4 #B41B9B
monochromatic
#204A0B #387F13 #4FB41B #69DF2D #8FE762

Accessibility & contrast

On white

2.67
#4FB41B on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.88
#4FB41B on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #4FB41B
7.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4FB41B#FFFFFF#000000##000000
##4FB41B1.002.677.887.88
#FFFFFF2.671.0021.0021.00
#0000007.8821.001.001.00
##0000007.8821.001.001.00

Color blindness preview

Protanopia (red-blind)
#BAA400
Deuteranopia (green-blind)
#AD9B30
Tritanopia (blue-blind)
#46AD99
Achromatopsia (no color)
#9E9E9E

Design tokens & code

CSS
--color: #4fb41b;
/* rgb */ color: rgb(79, 180, 27);
/* oklch */ color: oklch(68.3% 0.202 138.1);
Tailwind
colors: {
  custom: {
    50: '#8ccb68',
    500: '#4fb41b',
    950: '#000000',
  },
}
SCSS
$custom: #4fb41b;
$custom-light: #8ccb68;
$custom-dark: #000000;
JSON
{
  "hex": "#4fb41b",
  "rgb": {
    "r": 79,
    "g": 180,
    "b": 27
  },
  "hsl": {
    "h": 99.608,
    "s": 73.913,
    "l": 40.588
  },
  "oklch": {
    "l": 0.68271,
    "c": 0.20159,
    "h": 138.1
  },
  "luminance": 0.34384
}

Semantic roles & 50–950 ramp

primary
#4FB41B
secondary
#A75FCC
accent
#37F1B2
background
#F9FCF6
surface
#F1F9EB
border
#CBD2C6
text
#0D1307
muted
#7E827A

Preview Lab

Preview with #4FB41B

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

Preview Lab → · Contrast checker → · Palette generator →

#4FB41B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva