#637A16#637A16

#637A16 is a mid, vivid yellow-green. Relative luminance 0.166; OKLCH L 54.2% C 0.123 H 122.4°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#637A16
RGB	rgb(99, 122, 22)
HSL	hsl(74, 69%, 28%)
HSV	hsv(74, 82%, 48%)
CMYK	cmyk(18.9%, 0%, 82%, 52.2%)
CIE-LAB	lab(47.79, -22.39, 47.48)
CIE-LCH	lch(47.79, 52.49, 115.25°)
OKLab	oklab(54.23% -0.066 0.104)
OKLCH	oklch(54.23% 0.123 122.4)
XYZ	xyz(12.2501, 16.6296, 3.3234)
Luminance	0.1663 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#637A16 #2D167A

analogous

#7A5F16 #637A16 #317A16

triadic

#637A16 #16637A #7A1663

tetradic

#637A16 #167A5F #2D167A #7A1631

square

#637A16 #167A5F #2D167A #7A1631

split-complementary

#637A16 #16317A #5F167A

monochromatic

#151A05 #39460D #637A16 #8DAE1F #B3DA31

Accessibility & contrast

On white

4.85

#637A16 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#637A16 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #637A16

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##637A16	#FFFFFF	#000000	##FFFFFF
##637A16	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#827200

Deuteranopia (green-blind)

#7F7120

Tritanopia (blue-blind)

#697368

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #637a16;
/* rgb */ color: rgb(99, 122, 22);
/* oklch */ color: oklch(54.2% 0.123 122.4);

Tailwind

colors: {
  custom: {
    50: '#93a05d',
    500: '#637a16',
    950: '#000000',
  },
}

SCSS

$custom: #637a16;
$custom-light: #93a05d;
$custom-dark: #000000;

JSON

{
  "hex": "#637a16",
  "rgb": {
    "r": 99,
    "g": 122,
    "b": 22
  },
  "hsl": {
    "h": 73.8,
    "s": 69.444,
    "l": 28.235
  },
  "oklch": {
    "l": 0.5423,
    "c": 0.12319,
    "h": 122.4
  },
  "luminance": 0.1663
}

Semantic roles & 50–950 ramp

primary

#637A16

secondary

#573DAF

accent

#3CEC64

background

#F9F9F5

surface

#F2F2E9

border

#CCCCC5

text

#0D0E05

muted

#7E7E79

Preview Lab

Preview with #637A16

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

Preview Lab → · Contrast checker → · Palette generator →