#637F14#637F14

#637F14 is a mid, vivid yellow-green. Relative luminance 0.179; OKLCH L 55.5% C 0.130 H 124.2°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX#637F14
RGBrgb(99, 127, 20)
HSLhsl(76, 73%, 29%)
HSVhsv(76, 84%, 50%)
CMYKcmyk(22%, 0%, 84.3%, 50.2%)
CIE-LABlab(49.35, -25.00, 49.48)
CIE-LCHlch(49.35, 55.43, 116.80°)
OKLaboklab(55.49% -0.0733 0.1079)
OKLCHoklch(55.49% 0.13 124.2)
XYZxyz(12.8614, 17.8818, 3.4356)
Luminance0.1788 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#637F14 #30147F
analogous
#7F6614 #637F14 #2E7F14
triadic
#637F14 #14637F #7F1463
tetradic
#637F14 #147F66 #30147F #7F142E
square
#637F14 #147F66 #30147F #7F142E
split-complementary
#637F14 #142E7F #66147F
monochromatic
#151A04 #3A4A0C #637F14 #8CB41C #B0DE2F

Accessibility & contrast

On white

4.59
#637F14 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.58
#637F14 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #637F14
4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##637F14#FFFFFF#000000##FFFFFF
##637F141.004.594.584.59
#FFFFFF4.591.0021.001.00
#0000004.5821.001.0021.00
##FFFFFF4.591.0021.001.00

Color blindness preview

Protanopia (red-blind)
#877600
Deuteranopia (green-blind)
#837520
Tritanopia (blue-blind)
#68786C
Achromatopsia (no color)
#757575

Design tokens & code

CSS
--color: #637f14;
/* rgb */ color: rgb(99, 127, 20);
/* oklch */ color: oklch(55.5% 0.130 124.2);
Tailwind
colors: {
  custom: {
    50: '#93a45d',
    500: '#637f14',
    950: '#000000',
  },
}
SCSS
$custom: #637f14;
$custom-light: #93a45d;
$custom-dark: #000000;
JSON
{
  "hex": "#637f14",
  "rgb": {
    "r": 99,
    "g": 127,
    "b": 20
  },
  "hsl": {
    "h": 75.701,
    "s": 72.789,
    "l": 28.824
  },
  "oklch": {
    "l": 0.55492,
    "c": 0.13042,
    "h": 124.2
  },
  "luminance": 0.17882
}

Semantic roles & 50–950 ramp

primary
#637F14
secondary
#5A3BB4
accent
#38EF68
background
#F9FAF5
surface
#F2F4E9
border
#CCCEC5
text
#0D0F05
muted
#7E7F79

Preview Lab

Preview with #637F14

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

Preview Lab → · Contrast checker → · Palette generator →

#637F14 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva