#1FB31C#1FB31C

#1FB31C is a light, highly saturated green. Relative luminance 0.326; OKLCH L 66.8% C 0.216 H 142.5°. Best body text is #000000 at 7.52:1 contrast (WCAG AA passes).

Color values

HEX	#1FB31C
RGB	rgb(31, 179, 28)
HSL	hsl(119, 73%, 41%)
HSV	hsv(119, 84%, 70%)
CMYK	cmyk(82.7%, 0%, 84.4%, 29.8%)
CIE-LAB	lab(63.85, -63.04, 59.49)
CIE-LCH	lch(63.85, 86.68, 136.66°)
OKLab	oklab(66.78% -0.1712 0.1312)
OKLCH	oklch(66.78% 0.216 142.5)
XYZ	xyz(16.8937, 32.6133, 6.5030)
Luminance	0.3261 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1FB31C #B01CB3

analogous

#6AB31C #1FB31C #1CB364

triadic

#1FB31C #1C1FB3 #B31C1F

tetradic

#1FB31C #1C6AB3 #B01CB3 #B3641C

square

#1FB31C #1C6AB3 #B01CB3 #B3641C

split-complementary

#1FB31C #641CB3 #B31C6A

monochromatic

#0D490B #167E14 #1FB31C #31DE2E #65E763

Accessibility & contrast

On white

2.79

#1FB31C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.52

#1FB31C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #1FB31C

7.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1FB31C	#FFFFFF	#000000	##000000
##1FB31C	1.00	2.79	7.52	7.52
#FFFFFF	2.79	1.00	21.00	21.00
#000000	7.52	21.00	1.00	1.00
##000000	7.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7A100

Deuteranopia (green-blind)

#A89731

Tritanopia (blue-blind)

#00AD98

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #1fb31c;
/* rgb */ color: rgb(31, 179, 28);
/* oklch */ color: oklch(66.8% 0.216 142.5);

Tailwind

colors: {
  custom: {
    50: '#79cb68',
    500: '#1fb31c',
    950: '#000000',
  },
}

SCSS

$custom: #1fb31c;
$custom-light: #79cb68;
$custom-dark: #000000;

JSON

{
  "hex": "#1fb31c",
  "rgb": {
    "r": 31,
    "g": 179,
    "b": 28
  },
  "hsl": {
    "h": 118.808,
    "s": 72.947,
    "l": 40.588
  },
  "oklch": {
    "l": 0.66782,
    "c": 0.21572,
    "h": 142.5
  },
  "luminance": 0.32615
}

Semantic roles & 50–950 ramp

primary

#1FB31C

secondary

#C95FCB

accent

#38F0EC

background

#F8FCF6

surface

#EFF9EB

border

#CAD2C6

text

#0B1307

muted

#7C827A

Preview Lab

Preview with #1FB31C

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

Preview Lab → · Contrast checker → · Palette generator →