#638023#638023

#638023 is a mid, vivid yellow-green. Relative luminance 0.182; OKLCH L 55.8% C 0.123 H 125.4°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#638023
RGB	rgb(99, 128, 35)
HSL	hsl(79, 57%, 32%)
HSV	hsv(79, 73%, 50%)
CMYK	cmyk(22.7%, 0%, 72.7%, 49.8%)
CIE-LAB	lab(49.75, -24.69, 44.68)
CIE-LCH	lch(49.75, 51.05, 118.93°)
OKLab	oklab(55.84% -0.0712 0.1004)
OKLCH	oklch(55.84% 0.123 125.4)
XYZ	xyz(13.1682, 18.2122, 4.4113)
Luminance	0.1821 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638023 #402380

analogous

#806F23 #638023 #348023

triadic

#638023 #236380 #802363

tetradic

#638023 #23806F #402380 #802334

square

#638023 #23806F #402380 #802334

split-complementary

#638023 #233480 #6F2380

monochromatic

#192009 #3E5016 #638023 #88B030 #A7CF4F

Accessibility & contrast

On white

4.52

#638023 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#638023 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638023

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638023	#FFFFFF	#000000	##000000
##638023	1.00	4.52	4.64	4.64
#FFFFFF	4.52	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#877714

Deuteranopia (green-blind)

#83762B

Tritanopia (blue-blind)

#687A6E

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #638023;
/* rgb */ color: rgb(99, 128, 35);
/* oklch */ color: oklch(55.8% 0.123 125.4);

Tailwind

colors: {
  custom: {
    50: '#92a564',
    500: '#638023',
    950: '#000000',
  },
}

SCSS

$custom: #638023;
$custom-light: #92a564;
$custom-dark: #000000;

JSON

{
  "hex": "#638023",
  "rgb": {
    "r": 99,
    "g": 128,
    "b": 35
  },
  "hsl": {
    "h": 78.71,
    "s": 57.055,
    "l": 31.961
  },
  "oklch": {
    "l": 0.55843,
    "c": 0.12306,
    "h": 125.4
  },
  "luminance": 0.18212
}

Semantic roles & 50–950 ramp

primary

#638023

secondary

#6C4DB2

accent

#47E077

background

#F9FAF6

surface

#F2F4EB

border

#CCCEC6

text

#0D0F06

muted

#7E7F7A

Preview Lab

Preview with #638023

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

Preview Lab → · Contrast checker → · Palette generator →