#637D2A#637D2A

#637D2A is a mid, moderate yellow-green. Relative luminance 0.175; OKLCH L 55.1% C 0.114 H 124.9°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#637D2A
RGB	rgb(99, 125, 42)
HSL	hsl(79, 50%, 33%)
HSV	hsv(79, 66%, 49%)
CMYK	cmyk(20.8%, 0%, 66.4%, 51%)
CIE-LAB	lab(48.87, -22.67, 40.77)
CIE-LCH	lch(48.87, 46.65, 119.07°)
OKLab	oklab(55.15% -0.065 0.0932)
OKLCH	oklch(55.15% 0.114 124.9)
XYZ	xyz(12.8972, 17.4869, 4.8859)
Luminance	0.1749 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#637D2A #442A7D

analogous

#7D6D2A #637D2A #397D2A

triadic

#637D2A #2A637D #7D2A63

tetradic

#637D2A #2A7D6D #442A7D #7D2A39

square

#637D2A #2A7D6D #442A7D #7D2A39

split-complementary

#637D2A #2A397D #6D2A7D

monochromatic

#1A210B #3F4F1B #637D2A #87AB39 #A5C85A

Accessibility & contrast

On white

4.67

#637D2A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#637D2A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #637D2A

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##637D2A	#FFFFFF	#000000	##FFFFFF
##637D2A	1.00	4.67	4.50	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#84751F

Deuteranopia (green-blind)

#807430

Tritanopia (blue-blind)

#67776C

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #637d2a;
/* rgb */ color: rgb(99, 125, 42);
/* oklch */ color: oklch(55.1% 0.114 124.9);

Tailwind

colors: {
  custom: {
    50: '#92a268',
    500: '#637d2a',
    950: '#000000',
  },
}

SCSS

$custom: #637d2a;
$custom-light: #92a268;
$custom-dark: #000000;

JSON

{
  "hex": "#637d2a",
  "rgb": {
    "r": 99,
    "g": 125,
    "b": 42
  },
  "hsl": {
    "h": 78.795,
    "s": 49.701,
    "l": 32.745
  },
  "oklch": {
    "l": 0.55145,
    "c": 0.11362,
    "h": 124.9
  },
  "luminance": 0.17487
}

Semantic roles & 50–950 ramp

primary

#637D2A

secondary

#7156AD

accent

#4FD97A

background

#F9FAF6

surface

#F1F3EB

border

#CBCDC6

text

#0D0F06

muted

#7E7F7A

Preview Lab

Preview with #637D2A

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

Preview Lab → · Contrast checker → · Palette generator →