#666C15#666C15

#666C15 is a mid, moderate yellow. Relative luminance 0.136; OKLCH L 51.0% C 0.105 H 113.6°. Best body text is #FFFFFF at 5.64:1 contrast (WCAG AA passes).

Color values

HEX	#666C15
RGB	rgb(102, 108, 21)
HSL	hsl(64, 67%, 25%)
HSV	hsv(64, 81%, 42%)
CMYK	cmyk(5.6%, 0%, 80.6%, 57.6%)
CIE-LAB	lab(43.66, -13.66, 44.13)
CIE-LCH	lch(43.66, 46.20, 107.19°)
OKLab	oklab(50.96% -0.0423 0.0966)
OKLCH	oklch(50.96% 0.105 113.6)
XYZ	xyz(10.9778, 13.6043, 2.7569)
Luminance	0.1360 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666C15 #1B156C

analogous

#6C4615 #666C15 #3A6C15

triadic

#666C15 #15666C #6C1566

tetradic

#666C15 #156C46 #1B156C #6C153A

square

#666C15 #156C46 #1B156C #6C153A

split-complementary

#666C15 #153A6C #46156C

monochromatic

#181A05 #36390B #666C15 #969F1F #C7D229

Accessibility & contrast

On white

5.64

#666C15 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#666C15 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666C15

5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666C15	#FFFFFF	#000000	##FFFFFF
##666C15	1.00	5.64	3.72	5.64
#FFFFFF	5.64	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#756601

Deuteranopia (green-blind)

#74681D

Tritanopia (blue-blind)

#6D655C

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #666c15;
/* rgb */ color: rgb(102, 108, 21);
/* oklch */ color: oklch(51.0% 0.105 113.6);

Tailwind

colors: {
  custom: {
    50: '#95955b',
    500: '#666c15',
    950: '#000000',
  },
}

SCSS

$custom: #666c15;
$custom-light: #95955b;
$custom-dark: #000000;

JSON

{
  "hex": "#666c15",
  "rgb": {
    "r": 102,
    "g": 108,
    "b": 21
  },
  "hsl": {
    "h": 64.138,
    "s": 67.442,
    "l": 25.294
  },
  "oklch": {
    "l": 0.50963,
    "c": 0.10545,
    "h": 113.6
  },
  "luminance": 0.13604
}

Semantic roles & 50–950 ramp

primary

#666C15

secondary

#413AA3

accent

#3DEA49

background

#F9F9F5

surface

#F2F1E9

border

#CCCBC5

text

#0E0D04

muted

#7E7E79

Preview Lab

Preview with #666C15

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

Preview Lab → · Contrast checker → · Palette generator →