#666918#666918

#666918 is a mid, moderate yellow. Relative luminance 0.130; OKLCH L 50.2% C 0.100 H 111.7°. Best body text is #FFFFFF at 5.84:1 contrast (WCAG AA passes).

Color values

HEX	#666918
RGB	rgb(102, 105, 24)
HSL	hsl(62, 63%, 25%)
HSV	hsv(62, 77%, 41%)
CMYK	cmyk(2.9%, 0%, 77.1%, 58.8%)
CIE-LAB	lab(42.75, -11.85, 42.21)
CIE-LCH	lch(42.75, 43.84, 105.69°)
OKLab	oklab(50.24% -0.037 0.0931)
OKLCH	oklch(50.24% 0.1 111.7)
XYZ	xyz(10.6963, 12.9941, 2.8086)
Luminance	0.1299 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666918 #1B1869

analogous

#694318 #666918 #3D6918

triadic

#666918 #186669 #691866

tetradic

#666918 #186943 #1B1869 #69183D

square

#666918 #186943 #1B1869 #69183D

split-complementary

#666918 #183D69 #431869

monochromatic

#181906 #36370D #666918 #969B23 #C7CD2F

Accessibility & contrast

On white

5.84

#666918 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#666918 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666918

5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666918	#FFFFFF	#000000	##FFFFFF
##666918	1.00	5.84	3.60	5.84
#FFFFFF	5.84	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#726408

Deuteranopia (green-blind)

#72661F

Tritanopia (blue-blind)

#6D625A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #666918;
/* rgb */ color: rgb(102, 105, 24);
/* oklch */ color: oklch(50.2% 0.100 111.7);

Tailwind

colors: {
  custom: {
    50: '#94935c',
    500: '#666918',
    950: '#000000',
  },
}

SCSS

$custom: #666918;
$custom-light: #94935c;
$custom-dark: #000000;

JSON

{
  "hex": "#666918",
  "rgb": {
    "r": 102,
    "g": 105,
    "b": 24
  },
  "hsl": {
    "h": 62.222,
    "s": 62.791,
    "l": 25.294
  },
  "oklch": {
    "l": 0.50244,
    "c": 0.10018,
    "h": 111.7
  },
  "luminance": 0.12994
}

Semantic roles & 50–950 ramp

primary

#666918

secondary

#413E9F

accent

#42E648

background

#F9F9F5

surface

#F2F1E9

border

#CCCBC5

text

#0E0D04

muted

#7E7E79

Preview Lab

Preview with #666918

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

Preview Lab → · Contrast checker → · Palette generator →