#669C1F#669C1F

#669C1F is a light, vivid yellow-green. Relative luminance 0.267; OKLCH L 63.2% C 0.160 H 131.0°. Best body text is #000000 at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#669C1F
RGB	rgb(102, 156, 31)
HSL	hsl(86, 67%, 37%)
HSV	hsv(86, 80%, 61%)
CMYK	cmyk(34.6%, 0%, 80.1%, 38.8%)
CIE-LAB	lab(58.70, -36.89, 54.76)
CIE-LCH	lch(58.70, 66.03, 123.97°)
OKLab	oklab(63.15% -0.1049 0.1208)
OKLCH	oklch(63.15% 0.16 131)
XYZ	xyz(17.6151, 26.7000, 5.5216)
Luminance	0.2670 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669C1F #551F9C

analogous

#9C941F #669C1F #289C1F

triadic

#669C1F #1F669C #9C1F66

tetradic

#669C1F #1F9C94 #551F9C #9C1F28

square

#669C1F #1F9C94 #551F9C #9C1F28

split-complementary

#669C1F #1F289C #941F9C

monochromatic

#23360B #456915 #669C1F #87CF29 #A4DE58

Accessibility & contrast

On white

3.31

#669C1F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.34

#669C1F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #669C1F

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669C1F	#FFFFFF	#000000	##000000
##669C1F	1.00	3.31	6.34	6.34
#FFFFFF	3.31	1.00	21.00	21.00
#000000	6.34	21.00	1.00	1.00
##000000	6.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A39000

Deuteranopia (green-blind)

#9C8C2D

Tritanopia (blue-blind)

#689585

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #669c1f;
/* rgb */ color: rgb(102, 156, 31);
/* oklch */ color: oklch(63.2% 0.160 131.0);

Tailwind

colors: {
  custom: {
    50: '#96b966',
    500: '#669c1f',
    950: '#000000',
  },
}

SCSS

$custom: #669c1f;
$custom-light: #96b966;
$custom-dark: #000000;

JSON

{
  "hex": "#669c1f",
  "rgb": {
    "r": 102,
    "g": 156,
    "b": 31
  },
  "hsl": {
    "h": 85.92,
    "s": 66.845,
    "l": 36.667
  },
  "oklch": {
    "l": 0.63154,
    "c": 0.15999,
    "h": 131
  },
  "luminance": 0.26701
}

Semantic roles & 50–950 ramp

primary

#669C1F

secondary

#8455C1

accent

#3EEA88

background

#F9FBF6

surface

#F2F6EB

border

#CCD0C6

text

#0E1106

muted

#7E807A

Preview Lab

Preview with #669C1F

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

Preview Lab → · Contrast checker → · Palette generator →