#1BB43F#1BB43F

#1BB43F is a light, vivid green. Relative luminance 0.332; OKLCH L 67.3% C 0.198 H 145.9°. Best body text is #000000 at 7.65:1 contrast (WCAG AA passes).

Color values

HEX	#1BB43F
RGB	rgb(27, 180, 63)
HSL	hsl(134, 74%, 41%)
HSV	hsv(134, 85%, 71%)
CMYK	cmyk(85%, 0%, 65%, 29.4%)
CIE-LAB	lab(64.35, -60.97, 47.74)
CIE-LCH	lch(64.35, 77.44, 141.94°)
OKLab	oklab(67.26% -0.164 0.111)
OKLCH	oklch(67.26% 0.198 145.9)
XYZ	xyz(17.6691, 33.2322, 10.1849)
Luminance	0.3323 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1BB43F #B41B90

analogous

#43B41B #1BB43F #1BB48C

triadic

#1BB43F #3F1BB4 #B43F1B

tetradic

#1BB43F #1B43B4 #B41B90 #B48C1B

square

#1BB43F #1B43B4 #B41B90 #B48C1B

split-complementary

#1BB43F #8C1BB4 #B41B43

monochromatic

#0B4A1A #137F2C #1BB43F #2DDF57 #62E781

Accessibility & contrast

On white

2.75

#1BB43F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.65

#1BB43F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #1BB43F

7.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1BB43F	#FFFFFF	#000000	##000000
##1BB43F	1.00	2.75	7.65	7.65
#FFFFFF	2.75	1.00	21.00	21.00
#000000	7.65	21.00	1.00	1.00
##000000	7.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7A331

Deuteranopia (green-blind)

#A7984A

Tritanopia (blue-blind)

#00AF9C

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #1bb43f;
/* rgb */ color: rgb(27, 180, 63);
/* oklch */ color: oklch(67.3% 0.198 145.9);

Tailwind

colors: {
  custom: {
    50: '#77cc79',
    500: '#1bb43f',
    950: '#000000',
  },
}

SCSS

$custom: #1bb43f;
$custom-light: #77cc79;
$custom-dark: #000000;

JSON

{
  "hex": "#1bb43f",
  "rgb": {
    "r": 27,
    "g": 180,
    "b": 63
  },
  "hsl": {
    "h": 134.118,
    "s": 73.913,
    "l": 40.588
  },
  "oklch": {
    "l": 0.67258,
    "c": 0.1981,
    "h": 145.9
  },
  "luminance": 0.33234
}

Semantic roles & 50–950 ramp

primary

#1BB43F

secondary

#CC5FB2

accent

#37C5F1

background

#F8FCF7

surface

#EFF9EE

border

#CAD2C9

text

#0A1309

muted

#7C827B

Preview Lab

Preview with #1BB43F

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

Preview Lab → · Contrast checker → · Palette generator →