#668F1F#668F1F

#668F1F is a mid, vivid yellow-green. Relative luminance 0.226; OKLCH L 59.8% C 0.144 H 128.2°. Best body text is #000000 at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#668F1F
RGB	rgb(102, 143, 31)
HSL	hsl(82, 64%, 34%)
HSV	hsv(82, 78%, 56%)
CMYK	cmyk(28.7%, 0%, 78.3%, 43.9%)
CIE-LAB	lab(54.62, -30.96, 50.95)
CIE-LCH	lch(54.62, 59.62, 121.28°)
OKLab	oklab(59.84% -0.0888 0.1128)
OKLCH	oklch(59.84% 0.144 128.2)
XYZ	xyz(15.5493, 22.5683, 4.8329)
Luminance	0.2257 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668F1F #481F8F

analogous

#8F801F #668F1F #2E8F1F

triadic

#668F1F #1F668F #8F1F66

tetradic

#668F1F #1F8F80 #481F8F #8F1F2E

square

#668F1F #1F8F80 #481F8F #8F1F2E

split-complementary

#668F1F #1F2E8F #801F8F

monochromatic

#1E2A09 #425D14 #668F1F #8AC12A #A7D94F

Accessibility & contrast

On white

3.81

#668F1F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.51

#668F1F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668F1F

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668F1F	#FFFFFF	#000000	##000000
##668F1F	1.00	3.81	5.51	5.51
#FFFFFF	3.81	1.00	21.00	21.00
#000000	5.51	21.00	1.00	1.00
##000000	5.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#968402

Deuteranopia (green-blind)

#91822A

Tritanopia (blue-blind)

#6A887A

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #668f1f;
/* rgb */ color: rgb(102, 143, 31);
/* oklch */ color: oklch(59.8% 0.144 128.2);

Tailwind

colors: {
  custom: {
    50: '#95b064',
    500: '#668f1f',
    950: '#000000',
  },
}

SCSS

$custom: #668f1f;
$custom-light: #95b064;
$custom-dark: #000000;

JSON

{
  "hex": "#668f1f",
  "rgb": {
    "r": 102,
    "g": 143,
    "b": 31
  },
  "hsl": {
    "h": 81.964,
    "s": 64.368,
    "l": 34.118
  },
  "oklch": {
    "l": 0.59838,
    "c": 0.14358,
    "h": 128.2
  },
  "luminance": 0.22569
}

Semantic roles & 50–950 ramp

primary

#668F1F

secondary

#764EBC

accent

#40E77E

background

#F9FAF6

surface

#F2F4EB

border

#CCCEC6

text

#0E1006

muted

#7E7F7A

Preview Lab

Preview with #668F1F

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

Preview Lab → · Contrast checker → · Palette generator →