#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
RGB	rgb(79, 180, 27)
HSL	hsl(100, 74%, 41%)
HSV	hsv(100, 85%, 71%)
CMYK	cmyk(56.1%, 0%, 85%, 29.4%)
CIE-LAB	lab(65.26, -54.16, 61.42)
CIE-LCH	lch(65.26, 81.89, 131.41°)
OKLab	oklab(68.27% -0.15 0.1347)
OKLCH	oklch(68.27% 0.202 138.1)
XYZ	xyz(19.7428, 34.3823, 6.6328)
Luminance	0.3438 (WCAG relative)
Temperature	warm
Family	yellow-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
##4FB41B	1.00	2.67	7.88	7.88
#FFFFFF	2.67	1.00	21.00	21.00
#000000	7.88	21.00	1.00	1.00
##000000	7.88	21.00	1.00	1.00

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 →