#666F15#666F15

#666F15 is a mid, moderate yellow. Relative luminance 0.142; OKLCH L 51.7% C 0.109 H 115.4°. Best body text is #FFFFFF at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#666F15
RGB	rgb(102, 111, 21)
HSL	hsl(66, 68%, 26%)
HSV	hsv(66, 81%, 44%)
CMYK	cmyk(8.1%, 0%, 81.1%, 56.5%)
CIE-LAB	lab(44.59, -15.29, 44.98)
CIE-LCH	lch(44.59, 47.51, 108.78°)
OKLab	oklab(51.71% -0.0468 0.0984)
OKLCH	oklch(51.71% 0.109 115.4)
XYZ	xyz(11.2996, 14.2480, 2.8642)
Luminance	0.1425 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666F15 #1E156F

analogous

#6F4B15 #666F15 #396F15

triadic

#666F15 #15666F #6F1566

tetradic

#666F15 #156F4B #1E156F #6F1539

square

#666F15 #156F4B #1E156F #6F1539

split-complementary

#666F15 #15396F #4B156F

monochromatic

#181A05 #373C0B #666F15 #95A21F #C5D628

Accessibility & contrast

On white

5.46

#666F15 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#666F15 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666F15

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666F15	#FFFFFF	#000000	##FFFFFF
##666F15	1.00	5.46	3.85	5.46
#FFFFFF	5.46	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#776900

Deuteranopia (green-blind)

#776A1D

Tritanopia (blue-blind)

#6D685E

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #666f15;
/* rgb */ color: rgb(102, 111, 21);
/* oklch */ color: oklch(51.7% 0.109 115.4);

Tailwind

colors: {
  custom: {
    50: '#95985b',
    500: '#666f15',
    950: '#000000',
  },
}

SCSS

$custom: #666f15;
$custom-light: #95985b;
$custom-dark: #000000;

JSON

{
  "hex": "#666f15",
  "rgb": {
    "r": 102,
    "g": 111,
    "b": 21
  },
  "hsl": {
    "h": 66,
    "s": 68.182,
    "l": 25.882
  },
  "oklch": {
    "l": 0.51707,
    "c": 0.10896,
    "h": 115.4
  },
  "luminance": 0.14248
}

Semantic roles & 50–950 ramp

primary

#666F15

secondary

#453AA5

accent

#3DEB4E

background

#F9F9F5

surface

#F2F2E9

border

#CCCCC5

text

#0E0D04

muted

#7E7E79

Preview Lab

Preview with #666F15

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

Preview Lab → · Contrast checker → · Palette generator →