#666D22#666D22

#666D22 is a mid, moderate yellow. Relative luminance 0.139; OKLCH L 51.3% C 0.098 H 114.4°. Best body text is #FFFFFF at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#666D22
RGB	rgb(102, 109, 34)
HSL	hsl(66, 52%, 28%)
HSV	hsv(66, 69%, 43%)
CMYK	cmyk(6.4%, 0%, 68.8%, 57.3%)
CIE-LAB	lab(44.06, -13.47, 39.36)
CIE-LCH	lch(44.06, 41.60, 108.89°)
OKLab	oklab(51.31% -0.0404 0.0889)
OKLCH	oklch(51.31% 0.098 114.4)
XYZ	xyz(11.2371, 13.8777, 3.5998)
Luminance	0.1388 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666D22 #29226D

analogous

#6D4E22 #666D22 #406D22

triadic

#666D22 #22666D #6D2266

tetradic

#666D22 #226D4E #29226D #6D2240

square

#666D22 #226D4E #29226D #6D2240

split-complementary

#666D22 #22406D #4E226D

monochromatic

#161707 #3A3E13 #666D22 #929C31 #B9C545

Accessibility & contrast

On white

5.56

#666D22 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#666D22 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666D22

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666D22	#FFFFFF	#000000	##FFFFFF
##666D22	1.00	5.56	3.78	5.56
#FFFFFF	5.56	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#756818

Deuteranopia (green-blind)

#756927

Tritanopia (blue-blind)

#6D675E

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #666d22;
/* rgb */ color: rgb(102, 109, 34);
/* oklch */ color: oklch(51.3% 0.098 114.4);

Tailwind

colors: {
  custom: {
    50: '#949662',
    500: '#666d22',
    950: '#000000',
  },
}

SCSS

$custom: #666d22;
$custom-light: #949662;
$custom-dark: #000000;

JSON

{
  "hex": "#666d22",
  "rgb": {
    "r": 102,
    "g": 109,
    "b": 34
  },
  "hsl": {
    "h": 65.6,
    "s": 52.448,
    "l": 28.039
  },
  "oklch": {
    "l": 0.5131,
    "c": 0.09769,
    "h": 114.4
  },
  "luminance": 0.13878
}

Semantic roles & 50–950 ramp

primary

#666D22

secondary

#524AA1

accent

#4CDC59

background

#F9F9F5

surface

#F2F2EA

border

#CCCCC6

text

#0D0D05

muted

#7E7E79

Preview Lab

Preview with #666D22

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

Preview Lab → · Contrast checker → · Palette generator →