#668C1B#668C1B

#668C1B is a mid, vivid yellow-green. Relative luminance 0.217; OKLCH L 59.1% C 0.142 H 127.2°. Best body text is #000000 at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#668C1B
RGB	rgb(102, 140, 27)
HSL	hsl(80, 68%, 33%)
HSV	hsv(80, 81%, 55%)
CMYK	cmyk(27.1%, 0%, 80.7%, 45.1%)
CIE-LAB	lab(53.66, -29.74, 51.35)
CIE-LCH	lch(53.66, 59.34, 120.08°)
OKLab	oklab(59.05% -0.0858 0.113)
OKLCH	oklch(59.05% 0.142 127.2)
XYZ	xyz(15.0555, 21.6598, 4.4242)
Luminance	0.2166 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668C1B #411B8C

analogous

#8C791B #668C1B #2D8C1B

triadic

#668C1B #1B668C #8C1B66

tetradic

#668C1B #1B8C79 #411B8C #8C1B2D

square

#668C1B #1B8C79 #411B8C #8C1B2D

split-complementary

#668C1B #1B2D8C #791B8C

monochromatic

#1B2507 #415911 #668C1B #8BBF25 #A9DB46

Accessibility & contrast

On white

3.94

#668C1B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.33

#668C1B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668C1B

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668C1B	#FFFFFF	#000000	##000000
##668C1B	1.00	3.94	5.33	5.33
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.33	21.00	1.00	1.00
##000000	5.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#948200

Deuteranopia (green-blind)

#8E8027

Tritanopia (blue-blind)

#6A8577

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #668c1b;
/* rgb */ color: rgb(102, 140, 27);
/* oklch */ color: oklch(59.1% 0.142 127.2);

Tailwind

colors: {
  custom: {
    50: '#95ad62',
    500: '#668c1b',
    950: '#000000',
  },
}

SCSS

$custom: #668c1b;
$custom-light: #95ad62;
$custom-dark: #000000;

JSON

{
  "hex": "#668c1b",
  "rgb": {
    "r": 102,
    "g": 140,
    "b": 27
  },
  "hsl": {
    "h": 80.177,
    "s": 67.665,
    "l": 32.745
  },
  "oklch": {
    "l": 0.59051,
    "c": 0.14188,
    "h": 127.2
  },
  "luminance": 0.2166
}

Semantic roles & 50–950 ramp

primary

#668C1B

secondary

#6E46BD

accent

#3DEB78

background

#F9FAF6

surface

#F2F4EB

border

#CCCEC6

text

#0E1006

muted

#7E7F7A

Preview Lab

Preview with #668C1B

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

Preview Lab → · Contrast checker → · Palette generator →