#4FB31A#4FB31A

#4FB31A is a light, highly saturated yellow-green. Relative luminance 0.340; OKLCH L 68.0% C 0.201 H 138.0°. Best body text is #000000 at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#4FB31A
RGB	rgb(79, 179, 26)
HSL	hsl(99, 75%, 40%)
HSV	hsv(99, 85%, 70%)
CMYK	cmyk(55.9%, 0%, 85.5%, 29.8%)
CIE-LAB	lab(64.94, -53.84, 61.37)
CIE-LCH	lch(64.94, 81.64, 131.26°)
OKLab	oklab(68% -0.1492 0.1344)
OKLCH	oklch(68% 0.201 138)
XYZ	xyz(19.5303, 33.9754, 6.5058)
Luminance	0.3398 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4FB31A #7E1AB3

analogous

#9BB31A #4FB31A #1AB332

triadic

#4FB31A #1A4FB3 #B31A4F

tetradic

#4FB31A #1A9BB3 #7E1AB3 #B3321A

square

#4FB31A #1A9BB3 #7E1AB3 #B3321A

split-complementary

#4FB31A #321AB3 #B31A9B

monochromatic

#20480A #377E12 #4FB31A #69E02A #8FE860

Accessibility & contrast

On white

2.69

#4FB31A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.80

#4FB31A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #4FB31A

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4FB31A	#FFFFFF	#000000	##000000
##4FB31A	1.00	2.69	7.80	7.80
#FFFFFF	2.69	1.00	21.00	21.00
#000000	7.80	21.00	1.00	1.00
##000000	7.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B9A300

Deuteranopia (green-blind)

#AC9B2F

Tritanopia (blue-blind)

#46AC98

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #4fb31a;
/* rgb */ color: rgb(79, 179, 26);
/* oklch */ color: oklch(68.0% 0.201 138.0);

Tailwind

colors: {
  custom: {
    50: '#8ccb67',
    500: '#4fb31a',
    950: '#000000',
  },
}

SCSS

$custom: #4fb31a;
$custom-light: #8ccb67;
$custom-dark: #000000;

JSON

{
  "hex": "#4fb31a",
  "rgb": {
    "r": 79,
    "g": 179,
    "b": 26
  },
  "hsl": {
    "h": 99.216,
    "s": 74.634,
    "l": 40.196
  },
  "oklch": {
    "l": 0.68004,
    "c": 0.20083,
    "h": 138
  },
  "luminance": 0.33977
}

Semantic roles & 50–950 ramp

primary

#4FB31A

secondary

#A65DCC

accent

#37F1B1

background

#F9FCF6

surface

#F1F8EB

border

#CBD1C6

text

#0D1307

muted

#7E827A

Preview Lab

Preview with #4FB31A

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

Preview Lab → · Contrast checker → · Palette generator →