#4BB21F#4BB21F

#4BB21F is a light, vivid green. Relative luminance 0.334; OKLCH L 67.6% C 0.200 H 138.7°. Best body text is #000000 at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#4BB21F
RGB	rgb(75, 178, 31)
HSL	hsl(102, 70%, 41%)
HSV	hsv(102, 83%, 70%)
CMYK	cmyk(57.9%, 0%, 82.6%, 30.2%)
CIE-LAB	lab(64.51, -54.32, 59.68)
CIE-LCH	lch(64.51, 80.70, 132.31°)
OKLab	oklab(67.62% -0.15 0.1316)
OKLCH	oklch(67.62% 0.2 138.7)
XYZ	xyz(19.0686, 33.4339, 6.7446)
Luminance	0.3344 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4BB21F #861FB2

analogous

#94B21F #4BB21F #1FB23C

triadic

#4BB21F #1F4BB2 #B21F4B

tetradic

#4BB21F #1F94B2 #861FB2 #B23C1F

square

#4BB21F #1F94B2 #861FB2 #B23C1F

split-complementary

#4BB21F #3C1FB2 #B21F94

monochromatic

#1F4A0D #357E16 #4BB21F #65DB33 #8CE567

Accessibility & contrast

On white

2.73

#4BB21F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.69

#4BB21F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #4BB21F

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4BB21F	#FFFFFF	#000000	##000000
##4BB21F	1.00	2.73	7.69	7.69
#FFFFFF	2.73	1.00	21.00	21.00
#000000	7.69	21.00	1.00	1.00
##000000	7.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8A200

Deuteranopia (green-blind)

#AB9932

Tritanopia (blue-blind)

#40AC98

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #4bb21f;
/* rgb */ color: rgb(75, 178, 31);
/* oklch */ color: oklch(67.6% 0.200 138.7);

Tailwind

colors: {
  custom: {
    50: '#89ca69',
    500: '#4bb21f',
    950: '#000000',
  },
}

SCSS

$custom: #4bb21f;
$custom-light: #89ca69;
$custom-dark: #000000;

JSON

{
  "hex": "#4bb21f",
  "rgb": {
    "r": 75,
    "g": 178,
    "b": 31
  },
  "hsl": {
    "h": 102.041,
    "s": 70.335,
    "l": 40.98
  },
  "oklch": {
    "l": 0.67616,
    "c": 0.19955,
    "h": 138.7
  },
  "luminance": 0.33436
}

Semantic roles & 50–950 ramp

primary

#4BB21F

secondary

#AB63CA

accent

#3BEDB8

background

#F9FCF6

surface

#F1F8EC

border

#CBD1C7

text

#0D1307

muted

#7E827A

Preview Lab

Preview with #4BB21F

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

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