#1BB41B#1BB41B

#1BB41B is a light, highly saturated green. Relative luminance 0.330; OKLCH L 67.0% C 0.218 H 142.7°. Best body text is #000000 at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#1BB41B
RGB	rgb(27, 180, 27)
HSL	hsl(120, 74%, 41%)
HSV	hsv(120, 85%, 71%)
CMYK	cmyk(85%, 0%, 85%, 29.4%)
CIE-LAB	lab(64.12, -63.81, 59.97)
CIE-LCH	lch(64.12, 87.56, 136.78°)
OKLab	oklab(67% -0.1732 0.1321)
OKLCH	oklch(67% 0.218 142.7)
XYZ	xyz(16.9700, 32.9525, 6.5028)
Luminance	0.3296 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1BB41B #B41BB4

analogous

#67B41B #1BB41B #1BB467

triadic

#1BB41B #1B1BB4 #B41B1B

tetradic

#1BB41B #1B67B4 #B41BB4 #B4671B

square

#1BB41B #1B67B4 #B41BB4 #B4671B

split-complementary

#1BB41B #671BB4 #B41B67

monochromatic

#0B4A0B #137F13 #1BB41B #2DDF2D #62E762

Accessibility & contrast

On white

2.77

#1BB41B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.59

#1BB41B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #1BB41B

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1BB41B	#FFFFFF	#000000	##000000
##1BB41B	1.00	2.77	7.59	7.59
#FFFFFF	2.77	1.00	21.00	21.00
#000000	7.59	21.00	1.00	1.00
##000000	7.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8A200

Deuteranopia (green-blind)

#A99730

Tritanopia (blue-blind)

#00AE99

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #1bb41b;
/* rgb */ color: rgb(27, 180, 27);
/* oklch */ color: oklch(67.0% 0.218 142.7);

Tailwind

colors: {
  custom: {
    50: '#78cc67',
    500: '#1bb41b',
    950: '#000000',
  },
}

SCSS

$custom: #1bb41b;
$custom-light: #78cc67;
$custom-dark: #000000;

JSON

{
  "hex": "#1bb41b",
  "rgb": {
    "r": 27,
    "g": 180,
    "b": 27
  },
  "hsl": {
    "h": 120,
    "s": 73.913,
    "l": 40.588
  },
  "oklch": {
    "l": 0.66997,
    "c": 0.21783,
    "h": 142.7
  },
  "luminance": 0.32955
}

Semantic roles & 50–950 ramp

primary

#1BB41B

secondary

#CC5FCC

accent

#37F1F1

background

#F8FCF6

surface

#EFF9EB

border

#CAD2C6

text

#0B1307

muted

#7C827A

Preview Lab

Preview with #1BB41B

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

Preview Lab → · Contrast checker → · Palette generator →