#1B8B37#1B8B37

#1B8B37 is a mid, vivid green. Relative luminance 0.190; OKLCH L 55.9% C 0.155 H 146.9°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX#1B8B37
RGBrgb(27, 139, 55)
HSLhsl(135, 67%, 33%)
HSVhsv(135, 81%, 55%)
CMYKcmyk(80.6%, 0%, 60.4%, 45.5%)
CIE-LABlab(50.66, -48.36, 35.85)
CIE-LCHlch(50.66, 60.20, 143.45°)
OKLaboklab(55.86% -0.1301 0.0848)
OKLCHoklch(55.86% 0.155 146.9)
XYZxyz(10.3734, 18.9728, 6.7291)
Luminance0.1897 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B8B37 #8B1B6F
analogous
#378B1B #1B8B37 #1B8B6F
triadic
#1B8B37 #371B8B #8B371B
tetradic
#1B8B37 #1B378B #8B1B6F #8B6F1B
square
#1B8B37 #1B378B #8B1B6F #8B6F1B
split-complementary
#1B8B37 #6F1B8B #8B1B37
monochromatic
#07250E #115823 #1B8B37 #25BE4B #45DB6B

Accessibility & contrast

On white

4.38
#1B8B37 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.79
#1B8B37 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B8B37
4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B8B37#FFFFFF#000000##000000
##1B8B371.004.384.794.79
#FFFFFF4.381.0021.0021.00
#0000004.7921.001.001.00
##0000004.7921.001.001.00

Color blindness preview

Protanopia (red-blind)
#8D7E2E
Deuteranopia (green-blind)
#80753E
Tritanopia (blue-blind)
#008879
Achromatopsia (no color)
#797979

Design tokens & code

CSS
--color: #1b8b37;
/* rgb */ color: rgb(27, 139, 55);
/* oklch */ color: oklch(55.9% 0.155 146.9);
Tailwind
colors: {
  custom: {
    50: '#6cae71',
    500: '#1b8b37',
    950: '#000000',
  },
}
SCSS
$custom: #1b8b37;
$custom-light: #6cae71;
$custom-dark: #000000;
JSON
{
  "hex": "#1b8b37",
  "rgb": {
    "r": 27,
    "g": 139,
    "b": 55
  },
  "hsl": {
    "h": 135,
    "s": 67.47,
    "l": 32.549
  },
  "oklch": {
    "l": 0.55856,
    "c": 0.15529,
    "h": 146.9
  },
  "luminance": 0.18974
}

Semantic roles & 50–950 ramp

primary
#1B8B37
secondary
#BC459F
accent
#3DBFEA
background
#F7FAF6
surface
#EDF4EC
border
#C8CEC7
text
#081008
muted
#7B7F7B

Preview Lab

Preview with #1B8B37

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

Preview Lab → · Contrast checker → · Palette generator →

#1B8B37 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva