#4FAA21#4FAA21

#4FAA21 is a light, vivid yellow-green. Relative luminance 0.305; OKLCH L 65.7% C 0.188 H 137.8°. Best body text is #000000 at 7.10:1 contrast (WCAG AA passes).

Color values

HEX	#4FAA21
RGB	rgb(79, 170, 33)
HSL	hsl(100, 67%, 40%)
HSV	hsv(100, 81%, 67%)
CMYK	cmyk(53.5%, 0%, 80.6%, 33.3%)
CIE-LAB	lab(62.10, -50.18, 56.94)
CIE-LCH	lch(62.10, 75.90, 131.39°)
OKLab	oklab(65.67% -0.139 0.1261)
OKLCH	oklch(65.67% 0.188 137.8)
XYZ	xyz(17.8731, 30.5201, 6.3877)
Luminance	0.3052 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4FAA21 #7C21AA

analogous

#94AA21 #4FAA21 #21AA37

triadic

#4FAA21 #214FAA #AA214F

tetradic

#4FAA21 #2194AA #7C21AA #AA3721

square

#4FAA21 #2194AA #7C21AA #AA3721

split-complementary

#4FAA21 #3721AA #AA2194

monochromatic

#1F430D #377717 #4FAA21 #69D731 #8EE164

Accessibility & contrast

On white

2.96

#4FAA21 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.10

#4FAA21 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #4FAA21

7.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4FAA21	#FFFFFF	#000000	##000000
##4FAA21	1.00	2.96	7.10	7.10
#FFFFFF	2.96	1.00	21.00	21.00
#000000	7.10	21.00	1.00	1.00
##000000	7.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B09B00

Deuteranopia (green-blind)

#A49331

Tritanopia (blue-blind)

#48A491

Achromatopsia (no color)

#969696

Design tokens & code

CSS

--color: #4faa21;
/* rgb */ color: rgb(79, 170, 33);
/* oklch */ color: oklch(65.7% 0.188 137.8);

Tailwind

colors: {
  custom: {
    50: '#8ac469',
    500: '#4faa21',
    950: '#000000',
  },
}

SCSS

$custom: #4faa21;
$custom-light: #8ac469;
$custom-dark: #000000;

JSON

{
  "hex": "#4faa21",
  "rgb": {
    "r": 79,
    "g": 170,
    "b": 33
  },
  "hsl": {
    "h": 99.854,
    "s": 67.488,
    "l": 39.804
  },
  "oklch": {
    "l": 0.65667,
    "c": 0.18772,
    "h": 137.8
  },
  "luminance": 0.30522
}

Semantic roles & 50–950 ramp

primary

#4FAA21

secondary

#A461C6

accent

#3DEAB0

background

#F9FCF6

surface

#F1F8EB

border

#CBD1C6

text

#0D1307

muted

#7E827A

Preview Lab

Preview with #4FAA21

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

Preview Lab → · Contrast checker → · Palette generator →