#1BBB31#1BBB31

#1BBB31 is a light, highly saturated green. Relative luminance 0.360; OKLCH L 69.0% C 0.215 H 144.1°. Best body text is #000000 at 8.20:1 contrast (WCAG AA passes).

Color values

HEX	#1BBB31
RGB	rgb(27, 187, 49)
HSL	hsl(128, 75%, 42%)
HSV	hsv(128, 86%, 73%)
CMYK	cmyk(85.6%, 0%, 73.8%, 26.7%)
CIE-LAB	lab(66.51, -64.47, 55.59)
CIE-LCH	lch(66.51, 85.13, 139.23°)
OKLab	oklab(69.03% -0.1741 0.1259)
OKLCH	oklch(69.03% 0.215 144.1)
XYZ	xyz(18.7754, 35.9930, 8.8629)
Luminance	0.3599 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1BBB31 #BB1BA5

analogous

#55BB1B #1BBB31 #1BBB81

triadic

#1BBB31 #311BBB #BB311B

tetradic

#1BBB31 #1B55BB #BB1BA5 #BB811B

square

#1BBB31 #1B55BB #BB1BA5 #BB811B

split-complementary

#1BBB31 #811BBB #BB1B55

monochromatic

#0C5015 #138623 #1BBB31 #32E14A #67E979

Accessibility & contrast

On white

2.56

#1BBB31 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.20

#1BBB31 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #1BBB31

8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1BBB31	#FFFFFF	#000000	##000000
##1BBB31	1.00	2.56	8.20	8.20
#FFFFFF	2.56	1.00	21.00	21.00
#000000	8.20	21.00	1.00	1.00
##000000	8.20	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: #1bbb31;
/* rgb */ color: rgb(27, 187, 49);
/* oklch */ color: oklch(69.0% 0.215 144.1);

Tailwind

colors: {
  custom: {
    50: '#79d172',
    500: '#1bbb31',
    950: '#000000',
  },
}

SCSS

$custom: #1bbb31;
$custom-light: #79d172;
$custom-dark: #000000;

JSON

{
  "hex": "#1bbb31",
  "rgb": {
    "r": 27,
    "g": 187,
    "b": 49
  },
  "hsl": {
    "h": 128.25,
    "s": 74.766,
    "l": 41.961
  },
  "oklch": {
    "l": 0.69026,
    "c": 0.21488,
    "h": 144.1
  },
  "luminance": 0.35995
}

Semantic roles & 50–950 ramp

primary

#1BBB31

secondary

#CE63C0

accent

#36D8F1

background

#F8FDF7

surface

#EFFAED

border

#CAD3C8

text

#0B1408

muted

#7C837B

Preview Lab

Preview with #1BBB31

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

Preview Lab → · Contrast checker → · Palette generator →