#647C1A#647C1A

#647C1A is a mid, vivid yellow-green. Relative luminance 0.172; OKLCH L 54.8% C 0.123 H 122.9°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX#647C1A
RGBrgb(100, 124, 26)
HSLhsl(75, 65%, 29%)
HSVhsv(75, 79%, 49%)
CMYKcmyk(19.4%, 0%, 79%, 51.4%)
CIE-LABlab(48.51, -22.78, 46.85)
CIE-LCHlch(48.51, 52.10, 115.93°)
OKLaboklab(54.84% -0.0668 0.1034)
OKLCHoklch(54.84% 0.123 122.9)
XYZxyz(12.6498, 17.1991, 3.6304)
Luminance0.1720 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#647C1A #321A7C
analogous
#7C631A #647C1A #337C1A
triadic
#647C1A #1A647C #7C1A64
tetradic
#647C1A #1A7C63 #321A7C #7C1A33
square
#647C1A #1A7C63 #321A7C #7C1A33
split-complementary
#647C1A #1A337C #631A7C
monochromatic
#141905 #3B490F #647C1A #8DAF25 #B0D63B

Accessibility & contrast

On white

4.73
#647C1A on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.44
#647C1A on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #647C1A
4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##647C1A#FFFFFF#000000##FFFFFF
##647C1A1.004.734.444.73
#FFFFFF4.731.0021.001.00
#0000004.4421.001.0021.00
##FFFFFF4.731.0021.001.00

Color blindness preview

Protanopia (red-blind)
#847402
Deuteranopia (green-blind)
#817323
Tritanopia (blue-blind)
#69756A
Achromatopsia (no color)
#737373

Design tokens & code

CSS
--color: #647c1a;
/* rgb */ color: rgb(100, 124, 26);
/* oklch */ color: oklch(54.8% 0.123 122.9);
Tailwind
colors: {
  custom: {
    50: '#93a25f',
    500: '#647c1a',
    950: '#000000',
  },
}
SCSS
$custom: #647c1a;
$custom-light: #93a25f;
$custom-dark: #000000;
JSON
{
  "hex": "#647c1a",
  "rgb": {
    "r": 100,
    "g": 124,
    "b": 26
  },
  "hsl": {
    "h": 74.694,
    "s": 65.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.54837,
    "c": 0.12309,
    "h": 122.9
  },
  "luminance": 0.17199
}

Semantic roles & 50–950 ramp

primary
#647C1A
secondary
#5D42B0
accent
#40E869
background
#F9F9F5
surface
#F2F2EA
border
#CCCCC6
text
#0D0F05
muted
#7E7E79

Preview Lab

Preview with #647C1A

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

Preview Lab → · Contrast checker → · Palette generator →

#647C1A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva