#637D2C#637D2C

#637D2C is a mid, moderate yellow-green. Relative luminance 0.175; OKLCH L 55.2% C 0.112 H 125.1°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#637D2C
RGB	rgb(99, 125, 44)
HSL	hsl(79, 48%, 33%)
HSV	hsv(79, 65%, 49%)
CMYK	cmyk(20.8%, 0%, 64.8%, 51%)
CIE-LAB	lab(48.89, -22.50, 39.88)
CIE-LCH	lch(48.89, 45.79, 119.44°)
OKLab	oklab(55.17% -0.0643 0.0916)
OKLCH	oklch(55.17% 0.112 125.1)
XYZ	xyz(12.9339, 17.5016, 5.0791)
Luminance	0.1750 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#637D2C #462C7D

analogous

#7D6E2C #637D2C #3A7D2C

triadic

#637D2C #2C637D #7D2C63

tetradic

#637D2C #2C7D6E #462C7D #7D2C3A

square

#637D2C #2C7D6E #462C7D #7D2C3A

split-complementary

#637D2C #2C3A7D #6E2C7D

monochromatic

#1B220C #3F501C #637D2C #87AA3C #A4C65D

Accessibility & contrast

On white

4.67

#637D2C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#637D2C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #637D2C

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##637D2C	#FFFFFF	#000000	##FFFFFF
##637D2C	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)

#847522

Deuteranopia (green-blind)

#807432

Tritanopia (blue-blind)

#67776C

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #637d2c;
/* rgb */ color: rgb(99, 125, 44);
/* oklch */ color: oklch(55.2% 0.112 125.1);

Tailwind

colors: {
  custom: {
    50: '#92a269',
    500: '#637d2c',
    950: '#000000',
  },
}

SCSS

$custom: #637d2c;
$custom-light: #92a269;
$custom-dark: #000000;

JSON

{
  "hex": "#637d2c",
  "rgb": {
    "r": 99,
    "g": 125,
    "b": 44
  },
  "hsl": {
    "h": 79.259,
    "s": 47.929,
    "l": 33.137
  },
  "oklch": {
    "l": 0.55166,
    "c": 0.11192,
    "h": 125.1
  },
  "luminance": 0.17502
}

Semantic roles & 50–950 ramp

primary

#637D2C

secondary

#7359AC

accent

#50D87C

background

#F9FAF6

surface

#F1F3EB

border

#CBCDC6

text

#0D0F06

muted

#7E7F7A

Preview Lab

Preview with #637D2C

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

Preview Lab → · Contrast checker → · Palette generator →