#666C1E#666C1E

#666C1E is a mid, moderate yellow. Relative luminance 0.136; OKLCH L 51.0% C 0.100 H 113.7°. Best body text is #FFFFFF at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#666C1E
RGB	rgb(102, 108, 30)
HSL	hsl(65, 57%, 27%)
HSV	hsv(65, 72%, 42%)
CMYK	cmyk(5.6%, 0%, 72.2%, 57.6%)
CIE-LAB	lab(43.72, -13.18, 40.74)
CIE-LCH	lch(43.72, 42.82, 107.92°)
OKLab	oklab(51.03% -0.04 0.0912)
OKLCH	oklch(51.03% 0.1 113.7)
XYZ	xyz(11.0767, 13.6439, 3.2781)
Luminance	0.1364 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666C1E #241E6C

analogous

#6C4B1E #666C1E #3F6C1E

triadic

#666C1E #1E666C #6C1E66

tetradic

#666C1E #1E6C4B #241E6C #6C1E3F

square

#666C1E #1E6C4B #241E6C #6C1E3F

split-complementary

#666C1E #1E3F6C #4B1E6C

monochromatic

#171807 #393C11 #666C1E #939C2B #BEC93C

Accessibility & contrast

On white

5.63

#666C1E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.73

#666C1E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666C1E

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666C1E	#FFFFFF	#000000	##FFFFFF
##666C1E	1.00	5.63	3.73	5.63
#FFFFFF	5.63	1.00	21.00	1.00
#000000	3.73	21.00	1.00	21.00
##FFFFFF	5.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#746712

Deuteranopia (green-blind)

#746824

Tritanopia (blue-blind)

#6D655D

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #666c1e;
/* rgb */ color: rgb(102, 108, 30);
/* oklch */ color: oklch(51.0% 0.100 113.7);

Tailwind

colors: {
  custom: {
    50: '#94965f',
    500: '#666c1e',
    950: '#000000',
  },
}

SCSS

$custom: #666c1e;
$custom-light: #94965f;
$custom-dark: #000000;

JSON

{
  "hex": "#666c1e",
  "rgb": {
    "r": 102,
    "g": 108,
    "b": 30
  },
  "hsl": {
    "h": 64.615,
    "s": 56.522,
    "l": 27.059
  },
  "oklch": {
    "l": 0.51028,
    "c": 0.09956,
    "h": 113.7
  },
  "luminance": 0.13644
}

Semantic roles & 50–950 ramp

primary

#666C1E

secondary

#4C45A0

accent

#48E054

background

#F9F9F5

surface

#F2F1E9

border

#CCCBC5

text

#0D0D05

muted

#7E7E79

Preview Lab

Preview with #666C1E

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

Preview Lab → · Contrast checker → · Palette generator →