#638310#638310

#638310 is a mid, vivid yellow-green. Relative luminance 0.189; OKLCH L 56.5% C 0.137 H 125.3°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#638310
RGB	rgb(99, 131, 16)
HSL	hsl(77, 78%, 29%)
HSV	hsv(77, 88%, 51%)
CMYK	cmyk(24.4%, 0%, 87.8%, 48.6%)
CIE-LAB	lab(50.60, -27.11, 51.60)
CIE-LCH	lch(50.60, 58.29, 117.72°)
OKLab	oklab(56.5% -0.0792 0.1118)
OKLCH	oklch(56.5% 0.137 125.3)
XYZ	xyz(13.3555, 18.9225, 3.4389)
Luminance	0.1892 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638310 #301083

analogous

#836A10 #638310 #2A8310

triadic

#638310 #106383 #831063

tetradic

#638310 #10836A #301083 #83102A

square

#638310 #10836A #301083 #83102A

split-complementary

#638310 #102A83 #6A1083

monochromatic

#151B03 #3A4C09 #638310 #8CBA17 #B0E529

Accessibility & contrast

On white

4.39

#638310 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#638310 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638310

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638310	#FFFFFF	#000000	##000000
##638310	1.00	4.39	4.78	4.78
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B7A00

Deuteranopia (green-blind)

#86781E

Tritanopia (blue-blind)

#687C6F

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #638310;
/* rgb */ color: rgb(99, 131, 16);
/* oklch */ color: oklch(56.5% 0.137 125.3);

Tailwind

colors: {
  custom: {
    50: '#93a75c',
    500: '#638310',
    950: '#000000',
  },
}

SCSS

$custom: #638310;
$custom-light: #93a75c;
$custom-dark: #000000;

JSON

{
  "hex": "#638310",
  "rgb": {
    "r": 99,
    "g": 131,
    "b": 16
  },
  "hsl": {
    "h": 76.696,
    "s": 78.231,
    "l": 28.824
  },
  "oklch": {
    "l": 0.56495,
    "c": 0.13703,
    "h": 125.3
  },
  "luminance": 0.18923
}

Semantic roles & 50–950 ramp

primary

#638310

secondary

#5A36B9

accent

#33F569

background

#F9FAF5

surface

#F2F4E9

border

#CCCEC5

text

#0D0F05

muted

#7E7F79

Preview Lab

Preview with #638310

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

Preview Lab → · Contrast checker → · Palette generator →