#666D0F#666D0F

#666D0F is a mid, moderate yellow. Relative luminance 0.138; OKLCH L 51.2% C 0.110 H 114.2°. Best body text is #FFFFFF at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#666D0F
RGB	rgb(102, 109, 15)
HSL	hsl(64, 76%, 24%)
HSV	hsv(64, 86%, 43%)
CMYK	cmyk(6.4%, 0%, 86.2%, 57.3%)
CIE-LAB	lab(43.94, -14.44, 46.25)
CIE-LCH	lch(43.94, 48.45, 107.35°)
OKLab	oklab(51.18% -0.0449 0.1)
OKLCH	oklch(51.18% 0.11 114.2)
XYZ	xyz(11.0347, 13.7968, 2.5336)
Luminance	0.1380 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666D0F #160F6D

analogous

#6D450F #666D0F #376D0F

triadic

#666D0F #0F666D #6D0F66

tetradic

#666D0F #0F6D45 #160F6D #6D0F37

square

#666D0F #0F6D45 #160F6D #6D0F37

split-complementary

#666D0F #0F376D #450F6D

monochromatic

#191B04 #343708 #666D0F #98A316 #CBD91E

Accessibility & contrast

On white

5.59

#666D0F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#666D0F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666D0F

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666D0F	#FFFFFF	#000000	##FFFFFF
##666D0F	1.00	5.59	3.76	5.59
#FFFFFF	5.59	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#766700

Deuteranopia (green-blind)

#756919

Tritanopia (blue-blind)

#6D665C

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #666d0f;
/* rgb */ color: rgb(102, 109, 15);
/* oklch */ color: oklch(51.2% 0.110 114.2);

Tailwind

colors: {
  custom: {
    50: '#959658',
    500: '#666d0f',
    950: '#000000',
  },
}

SCSS

$custom: #666d0f;
$custom-light: #959658;
$custom-dark: #000000;

JSON

{
  "hex": "#666d0f",
  "rgb": {
    "r": 102,
    "g": 109,
    "b": 15
  },
  "hsl": {
    "h": 64.468,
    "s": 75.806,
    "l": 24.314
  },
  "oklch": {
    "l": 0.51179,
    "c": 0.1096,
    "h": 114.2
  },
  "luminance": 0.13797
}

Semantic roles & 50–950 ramp

primary

#666D0F

secondary

#3B33A5

accent

#35F243

background

#F9F9F5

surface

#F2F2E9

border

#CCCCC5

text

#0E0D04

muted

#7E7E79

Preview Lab

Preview with #666D0F

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

Preview Lab → · Contrast checker → · Palette generator →