#1FD428#1FD428

#1FD428 is a light, highly saturated green. Relative luminance 0.475; OKLCH L 75.7% C 0.244 H 143.1°. Best body text is #000000 at 10.51:1 contrast (WCAG AA passes).

Color values

HEX	#1FD428
RGB	rgb(31, 212, 40)
HSL	hsl(123, 74%, 48%)
HSV	hsv(123, 85%, 83%)
CMYK	cmyk(85.4%, 0%, 81.1%, 16.9%)
CIE-LAB	lab(74.53, -72.04, 66.18)
CIE-LCH	lch(74.53, 97.82, 137.43°)
OKLab	oklab(75.7% -0.1952 0.1468)
OKLCH	oklch(75.7% 0.244 143.1)
XYZ	xyz(24.4899, 47.5284, 9.8902)
Luminance	0.4753 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1FD428 #D41FCB

analogous

#71D41F #1FD428 #1FD482

triadic

#1FD428 #281FD4 #D4281F

tetradic

#1FD428 #1F71D4 #D41FCB #D4821F

square

#1FD428 #1F71D4 #D41FCB #D4821F

split-complementary

#1FD428 #821FD4 #D41F71

monochromatic

#0F6914 #179F1E #1FD428 #4BE553 #81ED86

Accessibility & contrast

On white

2.00

#1FD428 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.51

#1FD428 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #1FD428

10.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1FD428	#FFFFFF	#000000	##000000
##1FD428	1.00	2.00	10.51	10.51
#FFFFFF	2.00	1.00	21.00	21.00
#000000	10.51	21.00	1.00	1.00
##000000	10.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D9BF00

Deuteranopia (green-blind)

#C6B23E

Tritanopia (blue-blind)

#00CEB5

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #1fd428;
/* rgb */ color: rgb(31, 212, 40);
/* oklch */ color: oklch(75.7% 0.244 143.1);

Tailwind

colors: {
  custom: {
    50: '#81e371',
    500: '#1fd428',
    950: '#000000',
  },
}

SCSS

$custom: #1fd428;
$custom-light: #81e371;
$custom-dark: #000000;

JSON

{
  "hex": "#1fd428",
  "rgb": {
    "r": 31,
    "g": 212,
    "b": 40
  },
  "hsl": {
    "h": 122.983,
    "s": 74.486,
    "l": 47.647
  },
  "oklch": {
    "l": 0.75697,
    "c": 0.24423,
    "h": 143.1
  },
  "luminance": 0.47531
}

Semantic roles & 50–950 ramp

primary

#1FD428

secondary

#D57AD1

accent

#37E8F1

background

#F8FEF7

surface

#F0FCED

border

#CBD5C8

text

#0D1609

muted

#7D847B

Preview Lab

Preview with #1FD428

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

Preview Lab → · Contrast checker → · Palette generator →