#1B9E31#1B9E31

#1B9E31 is a mid, vivid green. Relative luminance 0.249; OKLCH L 61.1% C 0.183 H 144.9°. Best body text is #000000 at 5.98:1 contrast (WCAG AA passes).

Color values

HEX#1B9E31
RGBrgb(27, 158, 49)
HSLhsl(130, 71%, 36%)
HSVhsv(130, 83%, 62%)
CMYKcmyk(82.9%, 0%, 69%, 38%)
CIE-LABlab(56.98, -55.45, 45.66)
CIE-LCHlch(56.98, 71.83, 140.53°)
OKLaboklab(61.1% -0.1495 0.1051)
OKLCHoklch(61.1% 0.183 144.9)
XYZxyz(13.2323, 24.9069, 7.0152)
Luminance0.2491 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B9E31 #9E1B88
analogous
#479E1B #1B9E31 #1B9E73
triadic
#1B9E31 #311B9E #9E311B
tetradic
#1B9E31 #1B479E #9E1B88 #9E731B
square
#1B9E31 #1B479E #9E1B88 #9E731B
split-complementary
#1B9E31 #731B9E #9E1B47
monochromatic
#093511 #126A21 #1B9E31 #24D241 #52E16A

Accessibility & contrast

On white

3.51
#1B9E31 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.98
#1B9E31 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B9E31
5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B9E31#FFFFFF#000000##000000
##1B9E311.003.515.985.98
#FFFFFF3.511.0021.0021.00
#0000005.9821.001.001.00
##0000005.9821.001.001.00

Color blindness preview

Protanopia (red-blind)
#A18F22
Deuteranopia (green-blind)
#93853B
Tritanopia (blue-blind)
#009A88
Achromatopsia (no color)
#898989

Design tokens & code

CSS
--color: #1b9e31;
/* rgb */ color: rgb(27, 158, 49);
/* oklch */ color: oklch(61.1% 0.183 144.9);
Tailwind
colors: {
  custom: {
    50: '#71bc6f',
    500: '#1b9e31',
    950: '#000000',
  },
}
SCSS
$custom: #1b9e31;
$custom-light: #71bc6f;
$custom-dark: #000000;
JSON
{
  "hex": "#1b9e31",
  "rgb": {
    "r": 27,
    "g": 158,
    "b": 49
  },
  "hsl": {
    "h": 130.076,
    "s": 70.811,
    "l": 36.275
  },
  "oklch": {
    "l": 0.61095,
    "c": 0.18279,
    "h": 144.9
  },
  "luminance": 0.24908
}

Semantic roles & 50–950 ramp

primary
#1B9E31
secondary
#C451B1
accent
#3ACFEE
background
#F7FBF6
surface
#EEF6EC
border
#C9D0C7
text
#091208
muted
#7B817B

Preview Lab

Preview with #1B9E31

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

Preview Lab → · Contrast checker → · Palette generator →

#1B9E31 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva