#639823#639823

#639823 is a mid, vivid yellow-green. Relative luminance 0.252; OKLCH L 62.0% C 0.154 H 131.4°. Best body text is #000000 at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#639823
RGB	rgb(99, 152, 35)
HSL	hsl(87, 63%, 37%)
HSV	hsv(87, 77%, 60%)
CMYK	cmyk(34.9%, 0%, 77%, 40.4%)
CIE-LAB	lab(57.30, -36.03, 52.08)
CIE-LCH	lch(57.30, 63.33, 124.67°)
OKLab	oklab(61.98% -0.1021 0.1159)
OKLCH	oklch(61.98% 0.154 131.4)
XYZ	xyz(16.6770, 25.2298, 5.5809)
Luminance	0.2523 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#639823 #582398

analogous

#989323 #639823 #299823

triadic

#639823 #236398 #982363

tetradic

#639823 #239893 #582398 #982329

square

#639823 #239893 #582398 #982329

split-complementary

#639823 #232998 #932398

monochromatic

#22350C #436618 #639823 #83CA2E #A1D95C

Accessibility & contrast

On white

3.47

#639823 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.05

#639823 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #639823

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##639823	#FFFFFF	#000000	##000000
##639823	1.00	3.47	6.05	6.05
#FFFFFF	3.47	1.00	21.00	21.00
#000000	6.05	21.00	1.00	1.00
##000000	6.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9F8C07

Deuteranopia (green-blind)

#98882F

Tritanopia (blue-blind)

#659182

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #639823;
/* rgb */ color: rgb(99, 152, 35);
/* oklch */ color: oklch(62.0% 0.154 131.4);

Tailwind

colors: {
  custom: {
    50: '#94b667',
    500: '#639823',
    950: '#000000',
  },
}

SCSS

$custom: #639823;
$custom-light: #94b667;
$custom-dark: #000000;

JSON

{
  "hex": "#639823",
  "rgb": {
    "r": 99,
    "g": 152,
    "b": 35
  },
  "hsl": {
    "h": 87.179,
    "s": 62.567,
    "l": 36.667
  },
  "oklch": {
    "l": 0.61977,
    "c": 0.15444,
    "h": 131.4
  },
  "luminance": 0.2523
}

Semantic roles & 50–950 ramp

primary

#639823

secondary

#8759BE

accent

#42E68C

background

#F9FBF6

surface

#F2F6EB

border

#CCD0C6

text

#0E1106

muted

#7E807A

Preview Lab

Preview with #639823

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

Preview Lab → · Contrast checker → · Palette generator →