#66640F#66640F

#66640F is a mid, moderate yellow. Relative luminance 0.120; OKLCH L 49.0% C 0.100 H 108.1°. Best body text is #FFFFFF at 6.19:1 contrast (WCAG AA passes).

Color values

HEX	#66640F
RGB	rgb(102, 100, 15)
HSL	hsl(59, 74%, 23%)
HSV	hsv(59, 85%, 40%)
CMYK	cmyk(0%, 2%, 85.3%, 60%)
CIE-LAB	lab(41.17, -9.43, 43.86)
CIE-LCH	lch(41.17, 44.86, 102.14°)
OKLab	oklab(48.97% -0.031 0.0948)
OKLCH	oklch(48.97% 0.1 108.1)
XYZ	xyz(10.1233, 11.9740, 2.2298)
Luminance	0.1197 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66640F #0F1166

analogous

#66390F #66640F #3C660F

triadic

#66640F #0F6664 #640F66

tetradic

#66640F #0F6639 #0F1166 #660F3C

square

#66640F #0F6639 #0F1166 #660F3C

split-complementary

#66640F #0F3C66 #390F66

monochromatic

#1B1A04 #313007 #66640F #9B9817 #D1CD1F

Accessibility & contrast

On white

6.19

#66640F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#66640F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #66640F

6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66640F	#FFFFFF	#000000	##FFFFFF
##66640F	1.00	6.19	3.39	6.19
#FFFFFF	6.19	1.00	21.00	1.00
#000000	3.39	21.00	1.00	21.00
##FFFFFF	6.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D6000

Deuteranopia (green-blind)

#6E6217

Tritanopia (blue-blind)

#6E5D55

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #66640f;
/* rgb */ color: rgb(102, 100, 15);
/* oklch */ color: oklch(49.0% 0.100 108.1);

Tailwind

colors: {
  custom: {
    50: '#958f57',
    500: '#66640f',
    950: '#000000',
  },
}

SCSS

$custom: #66640f;
$custom-light: #958f57;
$custom-dark: #000000;

JSON

{
  "hex": "#66640f",
  "rgb": {
    "r": 102,
    "g": 100,
    "b": 15
  },
  "hsl": {
    "h": 58.621,
    "s": 74.359,
    "l": 22.941
  },
  "oklch": {
    "l": 0.48966,
    "c": 0.09977,
    "h": 108.1
  },
  "luminance": 0.11974
}

Semantic roles & 50–950 ramp

primary

#66640F

secondary

#32359F

accent

#3BF137

background

#F9F8F5

surface

#F2F0E9

border

#CCCBC5

text

#0E0C03

muted

#7E7D78

Preview Lab

Preview with #66640F

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

Preview Lab → · Contrast checker → · Palette generator →