#1FBB33#1FBB33

#1FBB33 is a light, highly saturated green. Relative luminance 0.361; OKLCH L 69.1% C 0.213 H 144.1°. Best body text is #000000 at 8.21:1 contrast (WCAG AA passes).

Color values

HEX	#1FBB33
RGB	rgb(31, 187, 51)
HSL	hsl(128, 72%, 43%)
HSV	hsv(128, 83%, 73%)
CMYK	cmyk(83.4%, 0%, 72.7%, 26.7%)
CIE-LAB	lab(66.57, -63.91, 54.94)
CIE-LCH	lch(66.57, 84.28, 139.32°)
OKLab	oklab(69.09% -0.1727 0.1248)
OKLCH	oklch(69.09% 0.213 144.1)
XYZ	xyz(18.9316, 36.0686, 9.0955)
Luminance	0.3607 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1FBB33 #BB1FA7

analogous

#59BB1F #1FBB33 #1FBB81

triadic

#1FBB33 #331FBB #BB331F

tetradic

#1FBB33 #1F59BB #BB1FA7 #BB811F

square

#1FBB33 #1F59BB #BB1FA7 #BB811F

split-complementary

#1FBB33 #811FBB #BB1F59

monochromatic

#0E5216 #168725 #1FBB33 #39DE4E #6EE77D

Accessibility & contrast

On white

2.56

#1FBB33 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.21

#1FBB33 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #1FBB33

8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1FBB33	#FFFFFF	#000000	##000000
##1FBB33	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)

#BFA91B

Deuteranopia (green-blind)

#AE9E41

Tritanopia (blue-blind)

#00B6A0

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #1fbb33;
/* rgb */ color: rgb(31, 187, 51);
/* oklch */ color: oklch(69.1% 0.213 144.1);

Tailwind

colors: {
  custom: {
    50: '#7ad173',
    500: '#1fbb33',
    950: '#000000',
  },
}

SCSS

$custom: #1fbb33;
$custom-light: #7ad173;
$custom-dark: #000000;

JSON

{
  "hex": "#1fbb33",
  "rgb": {
    "r": 31,
    "g": 187,
    "b": 51
  },
  "hsl": {
    "h": 127.692,
    "s": 71.56,
    "l": 42.745
  },
  "oklch": {
    "l": 0.69091,
    "c": 0.21303,
    "h": 144.1
  },
  "luminance": 0.36071
}

Semantic roles & 50–950 ramp

primary

#1FBB33

secondary

#CD69C0

accent

#3AD7EE

background

#F8FDF7

surface

#EFFAED

border

#CAD3C8

text

#0B1408

muted

#7C837B

Preview Lab

Preview with #1FBB33

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

Preview Lab → · Contrast checker → · Palette generator →