#1B8B3B#1B8B3B

#1B8B3B is a mid, vivid green. Relative luminance 0.190; OKLCH L 55.9% C 0.152 H 147.8°. Best body text is #000000 at 4.80:1 contrast (WCAG AA passes).

Color values

HEX#1B8B3B
RGBrgb(27, 139, 59)
HSLhsl(137, 67%, 33%)
HSVhsv(137, 81%, 55%)
CMYKcmyk(80.6%, 0%, 57.6%, 45.5%)
CIE-LABlab(50.70, -47.80, 33.92)
CIE-LCHlch(50.70, 58.61, 144.64°)
OKLaboklab(55.91% -0.1285 0.0809)
OKLCHoklch(55.91% 0.152 147.8)
XYZxyz(10.4732, 19.0128, 7.2547)
Luminance0.1901 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B8B3B #8B1B6B
analogous
#338B1B #1B8B3B #1B8B73
triadic
#1B8B3B #3B1B8B #8B3B1B
tetradic
#1B8B3B #1B338B #8B1B6B #8B731B
square
#1B8B3B #1B338B #8B1B6B #8B731B
split-complementary
#1B8B3B #731B8B #8B1B33
monochromatic
#07250F #115825 #1B8B3B #25BE51 #45DB70

Accessibility & contrast

On white

4.37
#1B8B3B on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.80
#1B8B3B on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B8B3B
4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B8B3B#FFFFFF#000000##000000
##1B8B3B1.004.374.804.80
#FFFFFF4.371.0021.0021.00
#0000004.8021.001.001.00
##0000004.8021.001.001.00

Color blindness preview

Protanopia (red-blind)
#8D7E33
Deuteranopia (green-blind)
#807541
Tritanopia (blue-blind)
#008879
Achromatopsia (no color)
#797979

Design tokens & code

CSS
--color: #1b8b3b;
/* rgb */ color: rgb(27, 139, 59);
/* oklch */ color: oklch(55.9% 0.152 147.8);
Tailwind
colors: {
  custom: {
    50: '#6cae73',
    500: '#1b8b3b',
    950: '#000000',
  },
}
SCSS
$custom: #1b8b3b;
$custom-light: #6cae73;
$custom-dark: #000000;
JSON
{
  "hex": "#1b8b3b",
  "rgb": {
    "r": 27,
    "g": 139,
    "b": 59
  },
  "hsl": {
    "h": 137.143,
    "s": 67.47,
    "l": 32.549
  },
  "oklch": {
    "l": 0.5591,
    "c": 0.15183,
    "h": 147.8
  },
  "luminance": 0.19014
}

Semantic roles & 50–950 ramp

primary
#1B8B3B
secondary
#BC459A
accent
#3DB9EA
background
#F7FAF7
surface
#EDF4ED
border
#C8CEC8
text
#081008
muted
#7B7F7B

Preview Lab

Preview with #1B8B3B

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

Preview Lab → · Contrast checker → · Palette generator →

#1B8B3B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva