#1B9837#1B9837

#1B9837 is a mid, vivid green. Relative luminance 0.230; OKLCH L 59.5% C 0.171 H 146.1°. Best body text is #000000 at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#1B9837
RGB	rgb(27, 152, 55)
HSL	hsl(133, 70%, 35%)
HSV	hsv(133, 82%, 60%)
CMYK	cmyk(82.2%, 0%, 63.8%, 40.4%)
CIE-LAB	lab(55.03, -52.81, 40.88)
CIE-LCH	lch(55.03, 66.78, 142.26°)
OKLab	oklab(59.49% -0.1421 0.0956)
OKLCH	oklch(59.49% 0.171 146.1)
XYZ	xyz(12.3689, 22.9638, 7.3943)
Luminance	0.2296 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B9837 #981B7C

analogous

#3E981B #1B9837 #1B9875

triadic

#1B9837 #371B98 #98371B

tetradic

#1B9837 #1B3E98 #981B7C #98751B

square

#1B9837 #1B3E98 #981B7C #98751B

split-complementary

#1B9837 #751B98 #981B3E

monochromatic

#093011 #126424 #1B9837 #24CC4A #4EE06E

Accessibility & contrast

On white

3.75

#1B9837 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.59

#1B9837 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B9837

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B9837	#FFFFFF	#000000	##000000
##1B9837	1.00	3.75	5.59	5.59
#FFFFFF	3.75	1.00	21.00	21.00
#000000	5.59	21.00	1.00	1.00
##000000	5.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9A892C

Deuteranopia (green-blind)

#8D803F

Tritanopia (blue-blind)

#009483

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #1b9837;
/* rgb */ color: rgb(27, 152, 55);
/* oklch */ color: oklch(59.5% 0.171 146.1);

Tailwind

colors: {
  custom: {
    50: '#70b772',
    500: '#1b9837',
    950: '#000000',
  },
}

SCSS

$custom: #1b9837;
$custom-light: #70b772;
$custom-dark: #000000;

JSON

{
  "hex": "#1b9837",
  "rgb": {
    "r": 27,
    "g": 152,
    "b": 55
  },
  "hsl": {
    "h": 133.44,
    "s": 69.832,
    "l": 35.098
  },
  "oklch": {
    "l": 0.59493,
    "c": 0.17131,
    "h": 146.1
  },
  "luminance": 0.22965
}

Semantic roles & 50–950 ramp

primary

#1B9837

secondary

#C24DA8

accent

#3BC5ED

background

#F7FBF7

surface

#EDF6ED

border

#C8D0C8

text

#091108

muted

#7B807B

Preview Lab

Preview with #1B9837

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

Preview Lab → · Contrast checker → · Palette generator →