#669C21#669C21

#669C21 is a light, vivid yellow-green. Relative luminance 0.267; OKLCH L 63.2% C 0.159 H 131.1°. Best body text is #000000 at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#669C21
RGB	rgb(102, 156, 33)
HSL	hsl(86, 65%, 37%)
HSV	hsv(86, 79%, 61%)
CMYK	cmyk(34.6%, 0%, 78.8%, 38.8%)
CIE-LAB	lab(58.71, -36.79, 54.14)
CIE-LCH	lch(58.71, 65.46, 124.20°)
OKLab	oklab(63.17% -0.1045 0.1198)
OKLCH	oklch(63.17% 0.159 131.1)
XYZ	xyz(17.6423, 26.7109, 5.6647)
Luminance	0.2671 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669C21 #57219C

analogous

#9C9421 #669C21 #299C21

triadic

#669C21 #21669C #9C2166

tetradic

#669C21 #219C94 #57219C #9C2129

square

#669C21 #219C94 #57219C #9C2129

split-complementary

#669C21 #21299C #94219C

monochromatic

#24370C #456916 #669C21 #87CF2C #A4DC5B

Accessibility & contrast

On white

3.31

#669C21 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.34

#669C21 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #669C21

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669C21	#FFFFFF	#000000	##000000
##669C21	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)

#9C8C2E

Tritanopia (blue-blind)

#689585

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #669c21;
/* rgb */ color: rgb(102, 156, 33);
/* oklch */ color: oklch(63.2% 0.159 131.1);

Tailwind

colors: {
  custom: {
    50: '#96b967',
    500: '#669c21',
    950: '#000000',
  },
}

SCSS

$custom: #669c21;
$custom-light: #96b967;
$custom-dark: #000000;

JSON

{
  "hex": "#669c21",
  "rgb": {
    "r": 102,
    "g": 156,
    "b": 33
  },
  "hsl": {
    "h": 86.341,
    "s": 65.079,
    "l": 37.059
  },
  "oklch": {
    "l": 0.63165,
    "c": 0.15898,
    "h": 131.1
  },
  "luminance": 0.26712
}

Semantic roles & 50–950 ramp

primary

#669C21

secondary

#8658C1

accent

#40E88A

background

#F9FBF6

surface

#F2F6EB

border

#CCD0C6

text

#0E1106

muted

#7E807A

Preview Lab

Preview with #669C21

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

Preview Lab → · Contrast checker → · Palette generator →