#666F23#666F23

#666F23 is a mid, moderate yellow. Relative luminance 0.143; OKLCH L 51.8% C 0.099 H 115.7°. Best body text is #FFFFFF at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#666F23
RGB	rgb(102, 111, 35)
HSL	hsl(67, 52%, 29%)
HSV	hsv(67, 68%, 44%)
CMYK	cmyk(8.1%, 0%, 68.5%, 56.5%)
CIE-LAB	lab(44.68, -14.49, 39.56)
CIE-LCH	lch(44.68, 42.13, 110.12°)
OKLab	oklab(51.81% -0.0432 0.0895)
OKLCH	oklch(51.81% 0.099 115.7)
XYZ	xyz(11.4676, 14.3152, 3.7488)
Luminance	0.1431 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666F23 #2C236F

analogous

#6F5223 #666F23 #406F23

triadic

#666F23 #23666F #6F2366

tetradic

#666F23 #236F52 #2C236F #6F2340

square

#666F23 #236F52 #2C236F #6F2340

split-complementary

#666F23 #23406F #52236F

monochromatic

#151707 #3B4014 #666F23 #919E32 #B6C547

Accessibility & contrast

On white

5.44

#666F23 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#666F23 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666F23

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666F23	#FFFFFF	#000000	##FFFFFF
##666F23	1.00	5.44	3.86	5.44
#FFFFFF	5.44	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#776919

Deuteranopia (green-blind)

#766A28

Tritanopia (blue-blind)

#6D695F

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #666f23;
/* rgb */ color: rgb(102, 111, 35);
/* oklch */ color: oklch(51.8% 0.099 115.7);

Tailwind

colors: {
  custom: {
    50: '#949862',
    500: '#666f23',
    950: '#000000',
  },
}

SCSS

$custom: #666f23;
$custom-light: #949862;
$custom-dark: #000000;

JSON

{
  "hex": "#666f23",
  "rgb": {
    "r": 102,
    "g": 111,
    "b": 35
  },
  "hsl": {
    "h": 67.105,
    "s": 52.055,
    "l": 28.627
  },
  "oklch": {
    "l": 0.51813,
    "c": 0.09939,
    "h": 115.7
  },
  "luminance": 0.14315
}

Semantic roles & 50–950 ramp

primary

#666F23

secondary

#564CA2

accent

#4CDB5D

background

#F9F9F6

surface

#F2F2EB

border

#CCCCC6

text

#0D0D05

muted

#7E7E7A

Preview Lab

Preview with #666F23

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

Preview Lab → · Contrast checker → · Palette generator →