#1FB421#1FB421

#1FB421 is a light, highly saturated green. Relative luminance 0.330; OKLCH L 67.1% C 0.215 H 142.8°. Best body text is #000000 at 7.61:1 contrast (WCAG AA passes).

Color values

HEX	#1FB421
RGB	rgb(31, 180, 33)
HSL	hsl(121, 71%, 41%)
HSV	hsv(121, 83%, 71%)
CMYK	cmyk(82.8%, 0%, 81.7%, 29.4%)
CIE-LAB	lab(64.19, -63.07, 58.48)
CIE-LCH	lch(64.19, 86.02, 137.16°)
OKLab	oklab(67.08% -0.1711 0.1298)
OKLCH	oklch(67.08% 0.215 142.8)
XYZ	xyz(17.1597, 33.0415, 6.9118)
Luminance	0.3304 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1FB421 #B41FB2

analogous

#68B41F #1FB421 #1FB46C

triadic

#1FB421 #211FB4 #B4211F

tetradic

#1FB421 #1F68B4 #B41FB2 #B46C1F

square

#1FB421 #1F68B4 #B41FB2 #B46C1F

split-complementary

#1FB421 #6C1FB4 #B41F68

monochromatic

#0D4C0E #168017 #1FB421 #34DC36 #68E56A

Accessibility & contrast

On white

2.76

#1FB421 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.61

#1FB421 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #1FB421

7.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1FB421	#FFFFFF	#000000	##000000
##1FB421	1.00	2.76	7.61	7.61
#FFFFFF	2.76	1.00	21.00	21.00
#000000	7.61	21.00	1.00	1.00
##000000	7.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8A200

Deuteranopia (green-blind)

#A99734

Tritanopia (blue-blind)

#00AF99

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #1fb421;
/* rgb */ color: rgb(31, 180, 33);
/* oklch */ color: oklch(67.1% 0.215 142.8);

Tailwind

colors: {
  custom: {
    50: '#79cc6a',
    500: '#1fb421',
    950: '#000000',
  },
}

SCSS

$custom: #1fb421;
$custom-light: #79cc6a;
$custom-dark: #000000;

JSON

{
  "hex": "#1fb421",
  "rgb": {
    "r": 31,
    "g": 180,
    "b": 33
  },
  "hsl": {
    "h": 120.805,
    "s": 70.616,
    "l": 41.373
  },
  "oklch": {
    "l": 0.67079,
    "c": 0.21477,
    "h": 142.8
  },
  "luminance": 0.33044
}

Semantic roles & 50–950 ramp

primary

#1FB421

secondary

#CB64C9

accent

#3AEBED

background

#F8FCF6

surface

#EFF9EC

border

#CAD2C7

text

#0B1307

muted

#7C827A

Preview Lab

Preview with #1FB421

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

Preview Lab → · Contrast checker → · Palette generator →