#638819#638819

#638819 is a mid, vivid yellow-green. Relative luminance 0.203; OKLCH L 57.8% C 0.139 H 127.2°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX#638819
RGBrgb(99, 136, 25)
HSLhsl(80, 69%, 32%)
HSVhsv(80, 82%, 53%)
CMYKcmyk(27.2%, 0%, 81.6%, 46.7%)
CIE-LABlab(52.21, -29.16, 50.57)
CIE-LCHlch(52.21, 58.37, 119.97°)
OKLaboklab(57.82% -0.0842 0.1111)
OKLCHoklch(57.82% 0.139 127.2)
XYZxyz(14.1253, 20.3309, 4.0996)
Luminance0.2033 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#638819 #3E1988
analogous
#887619 #638819 #2C8819
triadic
#638819 #196388 #881963
tetradic
#638819 #198876 #3E1988 #88192C
square
#638819 #198876 #3E1988 #88192C
split-complementary
#638819 #192C88 #761988
monochromatic
#182106 #3D540F #638819 #89BC23 #A8DC40

Accessibility & contrast

On white

4.15
#638819 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.07
#638819 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638819
5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##638819#FFFFFF#000000##000000
##6388191.004.155.075.07
#FFFFFF4.151.0021.0021.00
#0000005.0721.001.001.00
##0000005.0721.001.001.00

Color blindness preview

Protanopia (red-blind)
#8F7E00
Deuteranopia (green-blind)
#8A7C25
Tritanopia (blue-blind)
#678174
Achromatopsia (no color)
#7C7C7C

Design tokens & code

CSS
--color: #638819;
/* rgb */ color: rgb(99, 136, 25);
/* oklch */ color: oklch(57.8% 0.139 127.2);
Tailwind
colors: {
  custom: {
    50: '#93ab61',
    500: '#638819',
    950: '#000000',
  },
}
SCSS
$custom: #638819;
$custom-light: #93ab61;
$custom-dark: #000000;
JSON
{
  "hex": "#638819",
  "rgb": {
    "r": 99,
    "g": 136,
    "b": 25
  },
  "hsl": {
    "h": 80,
    "s": 68.944,
    "l": 31.569
  },
  "oklch": {
    "l": 0.57816,
    "c": 0.13939,
    "h": 127.2
  },
  "luminance": 0.20331
}

Semantic roles & 50–950 ramp

primary
#638819
secondary
#6A41BB
accent
#3CEC77
background
#F9FAF6
surface
#F2F4EB
border
#CCCEC6
text
#0D1005
muted
#7E7F7A

Preview Lab

Preview with #638819

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

Preview Lab → · Contrast checker → · Palette generator →

#638819 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva