#1FBB31#1FBB31

#1FBB31 is a light, highly saturated green. Relative luminance 0.361; OKLCH L 69.1% C 0.214 H 144.0°. Best body text is #000000 at 8.21:1 contrast (WCAG AA passes).

Color values

HEX	#1FBB31
RGB	rgb(31, 187, 49)
HSL	hsl(127, 72%, 43%)
HSV	hsv(127, 83%, 73%)
CMYK	cmyk(83.4%, 0%, 73.8%, 26.7%)
CIE-LAB	lab(66.56, -64.08, 55.65)
CIE-LCH	lch(66.56, 84.87, 139.03°)
OKLab	oklab(69.08% -0.1732 0.126)
OKLCH	oklch(69.08% 0.214 144)
XYZ	xyz(18.8885, 36.0514, 8.8682)
Luminance	0.3605 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1FBB31 #BB1FA9

analogous

#5BBB1F #1FBB31 #1FBB7F

triadic

#1FBB31 #311FBB #BB311F

tetradic

#1FBB31 #1F5BBB #BB1FA9 #BB7F1F

square

#1FBB31 #1F5BBB #BB1FA9 #BB7F1F

split-complementary

#1FBB31 #7F1FBB #BB1F5B

monochromatic

#0E5215 #168723 #1FBB31 #39DE4C #6EE77C

Accessibility & contrast

On white

2.56

#1FBB31 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.21

#1FBB31 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #1FBB31

8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1FBB31	#FFFFFF	#000000	##000000
##1FBB31	1.00	2.56	8.21	8.21
#FFFFFF	2.56	1.00	21.00	21.00
#000000	8.21	21.00	1.00	1.00
##000000	8.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BFA917

Deuteranopia (green-blind)

#AE9D40

Tritanopia (blue-blind)

#00B6A0

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #1fbb31;
/* rgb */ color: rgb(31, 187, 49);
/* oklch */ color: oklch(69.1% 0.214 144.0);

Tailwind

colors: {
  custom: {
    50: '#7ad172',
    500: '#1fbb31',
    950: '#000000',
  },
}

SCSS

$custom: #1fbb31;
$custom-light: #7ad172;
$custom-dark: #000000;

JSON

{
  "hex": "#1fbb31",
  "rgb": {
    "r": 31,
    "g": 187,
    "b": 49
  },
  "hsl": {
    "h": 126.923,
    "s": 71.56,
    "l": 42.745
  },
  "oklch": {
    "l": 0.69076,
    "c": 0.21419,
    "h": 144
  },
  "luminance": 0.36054
}

Semantic roles & 50–950 ramp

primary

#1FBB31

secondary

#CD69C1

accent

#3AD9EE

background

#F8FDF7

surface

#EFFAED

border

#CAD3C8

text

#0B1408

muted

#7C837B

Preview Lab

Preview with #1FBB31

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

Preview Lab → · Contrast checker → · Palette generator →