#666B1A#666B1A

#666B1A is a mid, moderate yellow. Relative luminance 0.134; OKLCH L 50.7% C 0.101 H 113.0°. Best body text is #FFFFFF at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#666B1A
RGB	rgb(102, 107, 26)
HSL	hsl(64, 61%, 26%)
HSV	hsv(64, 76%, 42%)
CMYK	cmyk(4.7%, 0%, 75.7%, 58%)
CIE-LAB	lab(43.38, -12.86, 42.04)
CIE-LCH	lch(43.38, 43.96, 107.01°)
OKLab	oklab(50.75% -0.0396 0.0931)
OKLCH	oklch(50.75% 0.101 113)
XYZ	xyz(10.9240, 13.4150, 2.9910)
Luminance	0.1341 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666B1A #1F1A6B

analogous

#6B471A #666B1A #3D6B1A

triadic

#666B1A #1A666B #6B1A66

tetradic

#666B1A #1A6B47 #1F1A6B #6B1A3D

square

#666B1A #1A6B47 #1F1A6B #6B1A3D

split-complementary

#666B1A #1A3D6B #471A6B

monochromatic

#171906 #373A0E #666B1A #959C26 #C4CD32

Accessibility & contrast

On white

5.70

#666B1A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#666B1A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666B1A

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666B1A	#FFFFFF	#000000	##FFFFFF
##666B1A	1.00	5.70	3.68	5.70
#FFFFFF	5.70	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#73660B

Deuteranopia (green-blind)

#736720

Tritanopia (blue-blind)

#6D645B

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #666b1a;
/* rgb */ color: rgb(102, 107, 26);
/* oklch */ color: oklch(50.7% 0.101 113.0);

Tailwind

colors: {
  custom: {
    50: '#94955d',
    500: '#666b1a',
    950: '#000000',
  },
}

SCSS

$custom: #666b1a;
$custom-light: #94955d;
$custom-dark: #000000;

JSON

{
  "hex": "#666b1a",
  "rgb": {
    "r": 102,
    "g": 107,
    "b": 26
  },
  "hsl": {
    "h": 63.704,
    "s": 60.902,
    "l": 26.078
  },
  "oklch": {
    "l": 0.5075,
    "c": 0.10119,
    "h": 113
  },
  "luminance": 0.13415
}

Semantic roles & 50–950 ramp

primary

#666B1A

secondary

#4640A0

accent

#44E44E

background

#F9F9F5

surface

#F2F1E9

border

#CCCBC5

text

#0D0D04

muted

#7E7E79

Preview Lab

Preview with #666B1A

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

Preview Lab → · Contrast checker → · Palette generator →