#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
RGB	rgb(99, 136, 25)
HSL	hsl(80, 69%, 32%)
HSV	hsv(80, 82%, 53%)
CMYK	cmyk(27.2%, 0%, 81.6%, 46.7%)
CIE-LAB	lab(52.21, -29.16, 50.57)
CIE-LCH	lch(52.21, 58.37, 119.97°)
OKLab	oklab(57.82% -0.0842 0.1111)
OKLCH	oklch(57.82% 0.139 127.2)
XYZ	xyz(14.1253, 20.3309, 4.0996)
Luminance	0.2033 (WCAG relative)
Temperature	warm
Family	yellow-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
##638819	1.00	4.15	5.07	5.07
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.07	21.00	1.00	1.00
##000000	5.07	21.00	1.00	1.00

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 →