#666D1C#666D1C

#666D1C is a mid, moderate yellow. Relative luminance 0.138; OKLCH L 51.3% C 0.102 H 114.3°. Best body text is #FFFFFF at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#666D1C
RGB	rgb(102, 109, 28)
HSL	hsl(65, 59%, 27%)
HSV	hsv(65, 74%, 43%)
CMYK	cmyk(6.4%, 0%, 74.3%, 57.3%)
CIE-LAB	lab(44.01, -13.85, 41.86)
CIE-LCH	lch(44.01, 44.09, 108.31°)
OKLab	oklab(51.26% -0.0421 0.0931)
OKLCH	oklch(51.26% 0.102 114.3)
XYZ	xyz(11.1580, 13.8461, 3.1832)
Luminance	0.1385 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666D1C #231C6D

analogous

#6D4C1C #666D1C #3E6D1C

triadic

#666D1C #1C666D #6D1C66

tetradic

#666D1C #1C6D4C #231C6D #6D1C3E

square

#666D1C #1C6D4C #231C6D #6D1C3E

split-complementary

#666D1C #1C3E6D #4C1C6D

monochromatic

#171806 #383C0F #666D1C #949E29 #BFCC38

Accessibility & contrast

On white

5.57

#666D1C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#666D1C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666D1C

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666D1C	#FFFFFF	#000000	##FFFFFF
##666D1C	1.00	5.57	3.77	5.57
#FFFFFF	5.57	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#75670E

Deuteranopia (green-blind)

#756922

Tritanopia (blue-blind)

#6D665D

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #666d1c;
/* rgb */ color: rgb(102, 109, 28);
/* oklch */ color: oklch(51.3% 0.102 114.3);

Tailwind

colors: {
  custom: {
    50: '#94965e',
    500: '#666d1c',
    950: '#000000',
  },
}

SCSS

$custom: #666d1c;
$custom-light: #94965e;
$custom-dark: #000000;

JSON

{
  "hex": "#666d1c",
  "rgb": {
    "r": 102,
    "g": 109,
    "b": 28
  },
  "hsl": {
    "h": 65.185,
    "s": 59.124,
    "l": 26.863
  },
  "oklch": {
    "l": 0.51259,
    "c": 0.10221,
    "h": 114.3
  },
  "luminance": 0.13846
}

Semantic roles & 50–950 ramp

primary

#666D1C

secondary

#4B43A2

accent

#45E253

background

#F9F9F5

surface

#F2F2E9

border

#CCCCC5

text

#0D0D05

muted

#7E7E79

Preview Lab

Preview with #666D1C

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

Preview Lab → · Contrast checker → · Palette generator →