#638517#638517

#638517 is a mid, vivid yellow-green. Relative luminance 0.195; OKLCH L 57.0% C 0.137 H 126.2°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX#638517
RGBrgb(99, 133, 23)
HSLhsl(79, 71%, 31%)
HSVhsv(79, 83%, 52%)
CMYKcmyk(25.6%, 0%, 82.7%, 47.8%)
CIE-LABlab(51.25, -27.81, 50.31)
CIE-LCHlch(51.25, 57.48, 118.93°)
OKLaboklab(57.04% -0.0807 0.1102)
OKLCHoklch(57.04% 0.137 126.2)
XYZxyz(13.6879, 19.4893, 3.8511)
Luminance0.1949 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#638517 #391785
analogous
#857017 #638517 #2C8517
triadic
#638517 #176385 #851763
tetradic
#638517 #178570 #391785 #85172C
square
#638517 #178570 #391785 #85172C
split-complementary
#638517 #172C85 #701785
monochromatic
#151D05 #3C510E #638517 #8AB920 #AADD3A

Accessibility & contrast

On white

4.29
#638517 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.90
#638517 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638517
4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##638517#FFFFFF#000000##000000
##6385171.004.294.904.90
#FFFFFF4.291.0021.0021.00
#0000004.9021.001.001.00
##0000004.9021.001.001.00

Color blindness preview

Protanopia (red-blind)
#8C7B00
Deuteranopia (green-blind)
#887A23
Tritanopia (blue-blind)
#687E71
Achromatopsia (no color)
#7A7A7A

Design tokens & code

CSS
--color: #638517;
/* rgb */ color: rgb(99, 133, 23);
/* oklch */ color: oklch(57.0% 0.137 126.2);
Tailwind
colors: {
  custom: {
    50: '#93a85f',
    500: '#638517',
    950: '#000000',
  },
}
SCSS
$custom: #638517;
$custom-light: #93a85f;
$custom-dark: #000000;
JSON
{
  "hex": "#638517",
  "rgb": {
    "r": 99,
    "g": 133,
    "b": 23
  },
  "hsl": {
    "h": 78.545,
    "s": 70.513,
    "l": 30.588
  },
  "oklch": {
    "l": 0.57038,
    "c": 0.13656,
    "h": 126.2
  },
  "luminance": 0.1949
}

Semantic roles & 50–950 ramp

primary
#638517
secondary
#653FB9
accent
#3BED72
background
#F9FAF5
surface
#F2F4EA
border
#CCCEC6
text
#0D0F05
muted
#7E7F79

Preview Lab

Preview with #638517

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

Preview Lab → · Contrast checker → · Palette generator →

#638517 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva