#669D31#669D31

#669D31 is a light, vivid yellow-green. Relative luminance 0.272; OKLCH L 63.5% C 0.150 H 132.5°. Best body text is #000000 at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#669D31
RGB	rgb(102, 157, 49)
HSL	hsl(91, 52%, 40%)
HSV	hsv(91, 69%, 62%)
CMYK	cmyk(35%, 0%, 68.8%, 38.4%)
CIE-LAB	lab(59.12, -36.19, 48.67)
CIE-LCH	lch(59.12, 60.65, 126.64°)
OKLab	oklab(63.54% -0.1016 0.1108)
OKLCH	oklch(63.54% 0.15 132.5)
XYZ	xyz(18.0906, 27.1598, 7.1943)
Luminance	0.2716 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669D31 #68319D

analogous

#9C9D31 #669D31 #319D32

triadic

#669D31 #31669D #9D3166

tetradic

#669D31 #319C9D #68319D #9D3231

square

#669D31 #319C9D #68319D #9D3231

split-complementary

#669D31 #32319D #9D319C

monochromatic

#294014 #486E22 #669D31 #84C546 #A3D475

Accessibility & contrast

On white

3.26

#669D31 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.43

#669D31 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #669D31

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669D31	#FFFFFF	#000000	##000000
##669D31	1.00	3.26	6.43	6.43
#FFFFFF	3.26	1.00	21.00	21.00
#000000	6.43	21.00	1.00	1.00
##000000	6.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A49121

Deuteranopia (green-blind)

#9C8D3A

Tritanopia (blue-blind)

#679787

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #669d31;
/* rgb */ color: rgb(102, 157, 49);
/* oklch */ color: oklch(63.5% 0.150 132.5);

Tailwind

colors: {
  custom: {
    50: '#96ba6f',
    500: '#669d31',
    950: '#000000',
  },
}

SCSS

$custom: #669d31;
$custom-light: #96ba6f;
$custom-dark: #000000;

JSON

{
  "hex": "#669d31",
  "rgb": {
    "r": 102,
    "g": 157,
    "b": 49
  },
  "hsl": {
    "h": 90.556,
    "s": 52.427,
    "l": 40.392
  },
  "oklch": {
    "l": 0.63538,
    "c": 0.15033,
    "h": 132.5
  },
  "luminance": 0.2716
}

Semantic roles & 50–950 ramp

primary

#669D31

secondary

#966EBC

accent

#4CDC95

background

#F9FBF6

surface

#F2F6EC

border

#CCD0C7

text

#0E1108

muted

#7E807B

Preview Lab

Preview with #669D31

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

Preview Lab → · Contrast checker → · Palette generator →