#666D19#666D19

#666D19 is a mid, moderate yellow. Relative luminance 0.138; OKLCH L 51.2% C 0.104 H 114.3°. Best body text is #FFFFFF at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#666D19
RGB	rgb(102, 109, 25)
HSL	hsl(65, 63%, 26%)
HSV	hsv(65, 77%, 43%)
CMYK	cmyk(6.4%, 0%, 77.1%, 57.3%)
CIE-LAB	lab(43.99, -14.01, 43.00)
CIE-LCH	lch(43.99, 45.23, 108.05°)
OKLab	oklab(51.24% -0.0429 0.095)
OKLCH	oklch(51.24% 0.104 114.3)
XYZ	xyz(11.1239, 13.8325, 3.0035)
Luminance	0.1383 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666D19 #20196D

analogous

#6D4A19 #666D19 #3C6D19

triadic

#666D19 #19666D #6D1966

tetradic

#666D19 #196D4A #20196D #6D193C

square

#666D19 #196D4A #20196D #6D193C

split-complementary

#666D19 #193C6D #4A196D

monochromatic

#171906 #373B0E #666D19 #959F24 #C2D031

Accessibility & contrast

On white

5.58

#666D19 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#666D19 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666D19

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666D19	#FFFFFF	#000000	##FFFFFF
##666D19	1.00	5.58	3.77	5.58
#FFFFFF	5.58	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#756708

Deuteranopia (green-blind)

#756920

Tritanopia (blue-blind)

#6D665D

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #666d19;
/* rgb */ color: rgb(102, 109, 25);
/* oklch */ color: oklch(51.2% 0.104 114.3);

Tailwind

colors: {
  custom: {
    50: '#94965d',
    500: '#666d19',
    950: '#000000',
  },
}

SCSS

$custom: #666d19;
$custom-light: #94965d;
$custom-dark: #000000;

JSON

{
  "hex": "#666d19",
  "rgb": {
    "r": 102,
    "g": 109,
    "b": 25
  },
  "hsl": {
    "h": 65,
    "s": 62.687,
    "l": 26.275
  },
  "oklch": {
    "l": 0.51237,
    "c": 0.10421,
    "h": 114.3
  },
  "luminance": 0.13832
}

Semantic roles & 50–950 ramp

primary

#666D19

secondary

#483FA2

accent

#42E650

background

#F9F9F5

surface

#F2F2E9

border

#CCCCC5

text

#0E0D04

muted

#7E7E79

Preview Lab

Preview with #666D19

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

Preview Lab → · Contrast checker → · Palette generator →