#1B8A3B#1B8A3B

#1B8A3B is a mid, vivid green. Relative luminance 0.187; OKLCH L 55.6% C 0.151 H 147.9°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX#1B8A3B
RGBrgb(27, 138, 59)
HSLhsl(137, 67%, 32%)
HSVhsv(137, 80%, 54%)
CMYKcmyk(80.4%, 0%, 57.2%, 45.9%)
CIE-LABlab(50.36, -47.44, 33.52)
CIE-LCHlch(50.36, 58.09, 144.76°)
OKLaboklab(55.63% -0.1275 0.08)
OKLCHoklch(55.63% 0.151 147.9)
XYZxyz(10.3291, 18.7245, 7.2066)
Luminance0.1873 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B8A3B #8A1B6A
analogous
#338A1B #1B8A3B #1B8A72
triadic
#1B8A3B #3B1B8A #8A3B1B
tetradic
#1B8A3B #1B338A #8A1B6A #8A721B
square
#1B8A3B #1B338A #8A1B6A #8A721B
split-complementary
#1B8A3B #721B8A #8A1B33
monochromatic
#07240F #115725 #1B8A3B #25BD51 #45DB70

Accessibility & contrast

On white

4.43
#1B8A3B on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.75
#1B8A3B on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B8A3B
4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B8A3B#FFFFFF#000000##000000
##1B8A3B1.004.434.754.75
#FFFFFF4.431.0021.0021.00
#0000004.7521.001.001.00
##0000004.7521.001.001.00

Color blindness preview

Protanopia (red-blind)
#8C7D34
Deuteranopia (green-blind)
#7F7441
Tritanopia (blue-blind)
#008778
Achromatopsia (no color)
#787878

Design tokens & code

CSS
--color: #1b8a3b;
/* rgb */ color: rgb(27, 138, 59);
/* oklch */ color: oklch(55.6% 0.151 147.9);
Tailwind
colors: {
  custom: {
    50: '#6cad73',
    500: '#1b8a3b',
    950: '#000000',
  },
}
SCSS
$custom: #1b8a3b;
$custom-light: #6cad73;
$custom-dark: #000000;
JSON
{
  "hex": "#1b8a3b",
  "rgb": {
    "r": 27,
    "g": 138,
    "b": 59
  },
  "hsl": {
    "h": 137.297,
    "s": 67.273,
    "l": 32.353
  },
  "oklch": {
    "l": 0.55629,
    "c": 0.15054,
    "h": 147.9
  },
  "luminance": 0.18726
}

Semantic roles & 50–950 ramp

primary
#1B8A3B
secondary
#BC459A
accent
#3EB8EA
background
#F7FAF7
surface
#EDF4ED
border
#C8CEC8
text
#081008
muted
#7B7F7B

Preview Lab

Preview with #1B8A3B

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

Preview Lab → · Contrast checker → · Palette generator →

#1B8A3B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva