#1B9F37#1B9F37

#1B9F37 is a mid, vivid green. Relative luminance 0.253; OKLCH L 61.4% C 0.180 H 145.7°. Best body text is #000000 at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#1B9F37
RGB	rgb(27, 159, 55)
HSL	hsl(133, 71%, 36%)
HSV	hsv(133, 83%, 62%)
CMYK	cmyk(83%, 0%, 65.4%, 37.6%)
CIE-LAB	lab(57.37, -55.12, 43.49)
CIE-LCH	lch(57.37, 70.22, 141.73°)
OKLab	oklab(61.43% -0.1484 0.1012)
OKLCH	oklch(61.43% 0.18 145.7)
XYZ	xyz(13.5387, 25.3034, 7.7842)
Luminance	0.2530 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B9F37 #9F1B83

analogous

#419F1B #1B9F37 #1B9F79

triadic

#1B9F37 #371B9F #9F371B

tetradic

#1B9F37 #1B419F #9F1B83 #9F791B

square

#1B9F37 #1B419F #9F1B83 #9F791B

split-complementary

#1B9F37 #791B9F #9F1B41

monochromatic

#093613 #126B25 #1B9F37 #24D349 #53E271

Accessibility & contrast

On white

3.46

#1B9F37 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.06

#1B9F37 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B9F37

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B9F37	#FFFFFF	#000000	##000000
##1B9F37	1.00	3.46	6.06	6.06
#FFFFFF	3.46	1.00	21.00	21.00
#000000	6.06	21.00	1.00	1.00
##000000	6.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1902A

Deuteranopia (green-blind)

#938640

Tritanopia (blue-blind)

#009B89

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #1b9f37;
/* rgb */ color: rgb(27, 159, 55);
/* oklch */ color: oklch(61.4% 0.180 145.7);

Tailwind

colors: {
  custom: {
    50: '#71bd72',
    500: '#1b9f37',
    950: '#000000',
  },
}

SCSS

$custom: #1b9f37;
$custom-light: #71bd72;
$custom-dark: #000000;

JSON

{
  "hex": "#1b9f37",
  "rgb": {
    "r": 27,
    "g": 159,
    "b": 55
  },
  "hsl": {
    "h": 132.727,
    "s": 70.968,
    "l": 36.471
  },
  "oklch": {
    "l": 0.61433,
    "c": 0.17965,
    "h": 145.7
  },
  "luminance": 0.25305
}

Semantic roles & 50–950 ramp

primary

#1B9F37

secondary

#C551AC

accent

#3AC8EE

background

#F7FBF7

surface

#EEF7ED

border

#C9D0C8

text

#091208

muted

#7B817B

Preview Lab

Preview with #1B9F37

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

Preview Lab → · Contrast checker → · Palette generator →