#1B9E37#1B9E37

#1B9E37 is a mid, vivid green. Relative luminance 0.250; OKLCH L 61.2% C 0.178 H 145.8°. Best body text is #000000 at 5.99:1 contrast (WCAG AA passes).

Color values

HEX	#1B9E37
RGB	rgb(27, 158, 55)
HSL	hsl(133, 71%, 36%)
HSV	hsv(133, 83%, 62%)
CMYK	cmyk(82.9%, 0%, 65.2%, 38%)
CIE-LAB	lab(57.04, -54.80, 43.12)
CIE-LCH	lch(57.04, 69.73, 141.80°)
OKLab	oklab(61.16% -0.1475 0.1004)
OKLCH	oklch(61.16% 0.178 145.8)
XYZ	xyz(13.3674, 24.9609, 7.7271)
Luminance	0.2496 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B9E37 #9E1B82

analogous

#419E1B #1B9E37 #1B9E79

triadic

#1B9E37 #371B9E #9E371B

tetradic

#1B9E37 #1B419E #9E1B82 #9E791B

square

#1B9E37 #1B419E #9E1B82 #9E791B

split-complementary

#1B9E37 #791B9E #9E1B41

monochromatic

#093513 #126A25 #1B9E37 #24D249 #52E171

Accessibility & contrast

On white

3.50

#1B9E37 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.99

#1B9E37 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B9E37

5.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B9E37	#FFFFFF	#000000	##000000
##1B9E37	1.00	3.50	5.99	5.99
#FFFFFF	3.50	1.00	21.00	21.00
#000000	5.99	21.00	1.00	1.00
##000000	5.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A08F2B

Deuteranopia (green-blind)

#928540

Tritanopia (blue-blind)

#009A88

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #1b9e37;
/* rgb */ color: rgb(27, 158, 55);
/* oklch */ color: oklch(61.2% 0.178 145.8);

Tailwind

colors: {
  custom: {
    50: '#71bc72',
    500: '#1b9e37',
    950: '#000000',
  },
}

SCSS

$custom: #1b9e37;
$custom-light: #71bc72;
$custom-dark: #000000;

JSON

{
  "hex": "#1b9e37",
  "rgb": {
    "r": 27,
    "g": 158,
    "b": 55
  },
  "hsl": {
    "h": 132.824,
    "s": 70.811,
    "l": 36.275
  },
  "oklch": {
    "l": 0.61156,
    "c": 0.17846,
    "h": 145.8
  },
  "luminance": 0.24963
}

Semantic roles & 50–950 ramp

primary

#1B9E37

secondary

#C451AB

accent

#3AC7EE

background

#F7FBF7

surface

#EDF6ED

border

#C8D0C8

text

#091208

muted

#7B817B

Preview Lab

Preview with #1B9E37

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

Preview Lab → · Contrast checker → · Palette generator →