#1BB43B#1BB43B

#1BB43B is a light, highly saturated green. Relative luminance 0.332; OKLCH L 67.2% C 0.201 H 145.4°. Best body text is #000000 at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#1BB43B
RGB	rgb(27, 180, 59)
HSL	hsl(133, 74%, 41%)
HSV	hsv(133, 85%, 71%)
CMYK	cmyk(85%, 0%, 67.2%, 29.4%)
CIE-LAB	lab(64.31, -61.40, 49.40)
CIE-LCH	lch(64.31, 78.81, 141.18°)
OKLab	oklab(67.22% -0.1654 0.1141)
OKLCH	oklch(67.22% 0.201 145.4)
XYZ	xyz(17.5614, 33.1891, 9.6174)
Luminance	0.3319 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1BB43B #B41B94

analogous

#47B41B #1BB43B #1BB487

triadic

#1BB43B #3B1BB4 #B43B1B

tetradic

#1BB43B #1B47B4 #B41B94 #B4871B

square

#1BB43B #1B47B4 #B41B94 #B4871B

split-complementary

#1BB43B #871BB4 #B41B47

monochromatic

#0B4A18 #137F2A #1BB43B #2DDF52 #62E77E

Accessibility & contrast

On white

2.75

#1BB43B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.64

#1BB43B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #1BB43B

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1BB43B	#FFFFFF	#000000	##000000
##1BB43B	1.00	2.75	7.64	7.64
#FFFFFF	2.75	1.00	21.00	21.00
#000000	7.64	21.00	1.00	1.00
##000000	7.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7A32B

Deuteranopia (green-blind)

#A79846

Tritanopia (blue-blind)

#00AF9B

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #1bb43b;
/* rgb */ color: rgb(27, 180, 59);
/* oklch */ color: oklch(67.2% 0.201 145.4);

Tailwind

colors: {
  custom: {
    50: '#77cc77',
    500: '#1bb43b',
    950: '#000000',
  },
}

SCSS

$custom: #1bb43b;
$custom-light: #77cc77;
$custom-dark: #000000;

JSON

{
  "hex": "#1bb43b",
  "rgb": {
    "r": 27,
    "g": 180,
    "b": 59
  },
  "hsl": {
    "h": 132.549,
    "s": 73.913,
    "l": 40.588
  },
  "oklch": {
    "l": 0.67218,
    "c": 0.20093,
    "h": 145.4
  },
  "luminance": 0.33191
}

Semantic roles & 50–950 ramp

primary

#1BB43B

secondary

#CC5FB5

accent

#37CAF1

background

#F8FCF7

surface

#EFF9ED

border

#CAD2C8

text

#0B1309

muted

#7C827B

Preview Lab

Preview with #1BB43B

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

Preview Lab → · Contrast checker → · Palette generator →