#647E1B#647E1B

#647E1B is a mid, vivid yellow-green. Relative luminance 0.177; OKLCH L 55.4% C 0.125 H 123.7°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX#647E1B
RGBrgb(100, 126, 27)
HSLhsl(76, 65%, 30%)
HSVhsv(76, 79%, 49%)
CMYKcmyk(20.6%, 0%, 78.6%, 50.6%)
CIE-LABlab(49.14, -23.74, 47.10)
CIE-LCHlch(49.14, 52.75, 116.75°)
OKLaboklab(55.35% -0.0694 0.1041)
OKLCHoklch(55.35% 0.125 123.7)
XYZxyz(12.9144, 17.7101, 3.7747)
Luminance0.1771 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#647E1B #351B7E
analogous
#7E671B #647E1B #327E1B
triadic
#647E1B #1B647E #7E1B64
tetradic
#647E1B #1B7E67 #351B7E #7E1B32
square
#647E1B #1B7E67 #351B7E #7E1B32
split-complementary
#647E1B #1B327E #671B7E
monochromatic
#141905 #3C4C10 #647E1B #8CB026 #AED63E

Accessibility & contrast

On white

4.62
#647E1B on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.54
#647E1B on #000000
AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #647E1B
4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##647E1B#FFFFFF#000000##FFFFFF
##647E1B1.004.624.544.62
#FFFFFF4.621.0021.001.00
#0000004.5421.001.0021.00
##FFFFFF4.621.0021.001.00

Color blindness preview

Protanopia (red-blind)
#867603
Deuteranopia (green-blind)
#827525
Tritanopia (blue-blind)
#69776B
Achromatopsia (no color)
#757575

Design tokens & code

CSS
--color: #647e1b;
/* rgb */ color: rgb(100, 126, 27);
/* oklch */ color: oklch(55.4% 0.125 123.7);
Tailwind
colors: {
  custom: {
    50: '#93a360',
    500: '#647e1b',
    950: '#000000',
  },
}
SCSS
$custom: #647e1b;
$custom-light: #93a360;
$custom-dark: #000000;
JSON
{
  "hex": "#647e1b",
  "rgb": {
    "r": 100,
    "g": 126,
    "b": 27
  },
  "hsl": {
    "h": 75.758,
    "s": 64.706,
    "l": 30
  },
  "oklch": {
    "l": 0.55351,
    "c": 0.12507,
    "h": 123.7
  },
  "luminance": 0.1771
}

Semantic roles & 50–950 ramp

primary
#647E1B
secondary
#6043B2
accent
#40E86C
background
#F9FAF5
surface
#F2F3EA
border
#CCCDC6
text
#0D0F05
muted
#7E7F79

Preview Lab

Preview with #647E1B

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

Preview Lab → · Contrast checker → · Palette generator →

#647E1B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva