#669E31#669E31

#669E31 is a light, vivid yellow-green. Relative luminance 0.275; OKLCH L 63.8% C 0.152 H 132.7°. Best body text is #000000 at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#669E31
RGB	rgb(102, 158, 49)
HSL	hsl(91, 53%, 41%)
HSV	hsv(91, 69%, 62%)
CMYK	cmyk(35.4%, 0%, 69%, 38%)
CIE-LAB	lab(59.43, -36.64, 48.99)
CIE-LCH	lch(59.43, 61.17, 126.79°)
OKLab	oklab(63.79% -0.1028 0.1115)
OKLCH	oklch(63.79% 0.152 132.7)
XYZ	xyz(18.2605, 27.4995, 7.2509)
Luminance	0.2750 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669E31 #69319E

analogous

#9C9E31 #669E31 #319E33

triadic

#669E31 #31669E #9E3166

tetradic

#669E31 #319C9E #69319E #9E3331

square

#669E31 #319C9E #69319E #9E3331

split-complementary

#669E31 #33319E #9E319C

monochromatic

#2A4114 #486F23 #669E31 #84C646 #A3D475

Accessibility & contrast

On white

3.23

#669E31 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.50

#669E31 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #669E31

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669E31	#FFFFFF	#000000	##000000
##669E31	1.00	3.23	6.50	6.50
#FFFFFF	3.23	1.00	21.00	21.00
#000000	6.50	21.00	1.00	1.00
##000000	6.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A59221

Deuteranopia (green-blind)

#9D8E3A

Tritanopia (blue-blind)

#679888

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #669e31;
/* rgb */ color: rgb(102, 158, 49);
/* oklch */ color: oklch(63.8% 0.152 132.7);

Tailwind

colors: {
  custom: {
    50: '#96bb6f',
    500: '#669e31',
    950: '#000000',
  },
}

SCSS

$custom: #669e31;
$custom-light: #96bb6f;
$custom-dark: #000000;

JSON

{
  "hex": "#669e31",
  "rgb": {
    "r": 102,
    "g": 158,
    "b": 49
  },
  "hsl": {
    "h": 90.826,
    "s": 52.657,
    "l": 40.588
  },
  "oklch": {
    "l": 0.63792,
    "c": 0.15165,
    "h": 132.7
  },
  "luminance": 0.275
}

Semantic roles & 50–950 ramp

primary

#669E31

secondary

#966EBC

accent

#4CDC96

background

#F9FBF6

surface

#F2F6EC

border

#CCD0C7

text

#0E1208

muted

#7E817B

Preview Lab

Preview with #669E31

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

Preview Lab → · Contrast checker → · Palette generator →