#638528#638528

#638528 is a mid, vivid yellow-green. Relative luminance 0.196; OKLCH L 57.2% C 0.126 H 127.4°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#638528
RGB	rgb(99, 133, 40)
HSL	hsl(82, 54%, 34%)
HSV	hsv(82, 70%, 52%)
CMYK	cmyk(25.6%, 0%, 69.9%, 47.8%)
CIE-LAB	lab(51.36, -26.81, 44.26)
CIE-LCH	lch(51.36, 51.75, 121.21°)
OKLab	oklab(57.16% -0.0766 0.1003)
OKLCH	oklch(57.16% 0.126 127.4)
XYZ	xyz(13.9161, 19.5806, 5.0533)
Luminance	0.1958 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638528 #4A2885

analogous

#857928 #638528 #358528

triadic

#638528 #286385 #852863

tetradic

#638528 #288579 #4A2885 #852835

square

#638528 #288579 #4A2885 #852835

split-complementary

#638528 #283585 #792885

monochromatic

#1D270C #40561A #638528 #86B436 #A3CD5A

Accessibility & contrast

On white

4.27

#638528 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#638528 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638528

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638528	#FFFFFF	#000000	##000000
##638528	1.00	4.27	4.92	4.92
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C7C1A

Deuteranopia (green-blind)

#877A30

Tritanopia (blue-blind)

#677F72

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #638528;
/* rgb */ color: rgb(99, 133, 40);
/* oklch */ color: oklch(57.2% 0.126 127.4);

Tailwind

colors: {
  custom: {
    50: '#92a868',
    500: '#638528',
    950: '#000000',
  },
}

SCSS

$custom: #638528;
$custom-light: #92a868;
$custom-dark: #000000;

JSON

{
  "hex": "#638528",
  "rgb": {
    "r": 99,
    "g": 133,
    "b": 40
  },
  "hsl": {
    "h": 81.935,
    "s": 53.757,
    "l": 33.922
  },
  "oklch": {
    "l": 0.57157,
    "c": 0.12617,
    "h": 127.4
  },
  "luminance": 0.19581
}

Semantic roles & 50–950 ramp

primary

#638528

secondary

#7856B3

accent

#4BDD80

background

#F9FAF6

surface

#F2F4EB

border

#CCCEC6

text

#0D0F06

muted

#7E7F7A

Preview Lab

Preview with #638528

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

Preview Lab → · Contrast checker → · Palette generator →