#1B643F#1B643F

#1B643F is a dark, moderate green. Relative luminance 0.097; OKLCH L 44.9% C 0.094 H 156.7°. Best body text is #FFFFFF at 7.14:1 contrast (WCAG AA passes).

Color values

HEX#1B643F
RGBrgb(27, 100, 63)
HSLhsl(150, 57%, 25%)
HSVhsv(150, 73%, 39%)
CMYKcmyk(73%, 0%, 37%, 60.8%)
CIE-LABlab(37.31, -31.74, 14.70)
CIE-LCHlch(37.31, 34.98, 155.14°)
OKLaboklab(44.86% -0.086 0.037)
OKLCHoklch(44.86% 0.094 156.7)
XYZxyz(5.9058, 9.7056, 6.2638)
Luminance0.0971 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B643F #641B40
analogous
#1C641B #1B643F #1B6463
triadic
#1B643F #3F1B64 #643F1B
tetradic
#1B643F #1B1C64 #641B40 #64631B
square
#1B643F #1B1C64 #641B40 #64631B
split-complementary
#1B643F #631B64 #641B1C
monochromatic
#07180F #0E3421 #1B643F #28945D #35C47C

Accessibility & contrast

On white

7.14
#1B643F on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.94
#1B643F on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B643F
7.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B643F#FFFFFF#000000##FFFFFF
##1B643F1.007.142.947.14
#FFFFFF7.141.0021.001.00
#0000002.9421.001.0021.00
##FFFFFF7.141.0021.001.00

Color blindness preview

Protanopia (red-blind)
#635C3D
Deuteranopia (green-blind)
#5A5541
Tritanopia (blue-blind)
#00635A
Achromatopsia (no color)
#585858

Design tokens & code

CSS
--color: #1b643f;
/* rgb */ color: rgb(27, 100, 63);
/* oklch */ color: oklch(44.9% 0.094 156.7);
Tailwind
colors: {
  custom: {
    50: '#629174',
    500: '#1b643f',
    950: '#000000',
  },
}
SCSS
$custom: #1b643f;
$custom-light: #629174;
$custom-dark: #000000;
JSON
{
  "hex": "#1b643f",
  "rgb": {
    "r": 27,
    "g": 100,
    "b": 63
  },
  "hsl": {
    "h": 149.589,
    "s": 57.48,
    "l": 24.902
  },
  "oklch": {
    "l": 0.44862,
    "c": 0.09365,
    "h": 156.7
  },
  "luminance": 0.09706
}

Semantic roles & 50–950 ramp

primary
#1B643F
secondary
#99416E
accent
#4795E1
background
#F6F8F7
surface
#EBF0ED
border
#C6CBC8
text
#060D08
muted
#7A7D7B

Preview Lab

Preview with #1B643F

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

Preview Lab → · Contrast checker → · Palette generator →

#1B643F Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva