#666554#666554

#666554 is a mid, muted yellow. Relative luminance 0.128; OKLCH L 50.3% C 0.026 H 104.5°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#666554
RGB	rgb(102, 101, 84)
HSL	hsl(57, 10%, 36%)
HSV	hsv(57, 18%, 40%)
CMYK	cmyk(0%, 1%, 17.6%, 60%)
CIE-LAB	lab(42.42, -2.84, 9.79)
CIE-LCH	lch(42.42, 10.19, 106.19°)
OKLab	oklab(50.26% -0.0065 0.0252)
OKLCH	oklch(50.26% 0.026 104.5)
XYZ	xyz(11.7333, 12.7724, 10.2330)
Luminance	0.1277 (WCAG relative)
Temperature	neutral
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666554 #545566

analogous

#665C54 #666554 #5E6654

triadic

#666554 #546665 #655466

tetradic

#666554 #54665C #545566 #66545E

square

#666554 #54665C #545566 #66545E

split-complementary

#666554 #545E66 #5C5466

monochromatic

#23231D #444438 #666554 #888670 #A4A390

Accessibility & contrast

On white

5.91

#666554 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#666554 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666554

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666554	#FFFFFF	#000000	##FFFFFF
##666554	1.00	5.91	3.55	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#686453

Deuteranopia (green-blind)

#696555

Tritanopia (blue-blind)

#696360

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #666554;
/* rgb */ color: rgb(102, 101, 84);
/* oklch */ color: oklch(50.3% 0.026 104.5);

Tailwind

colors: {
  custom: {
    50: '#919084',
    500: '#666554',
    950: '#000000',
  },
}

SCSS

$custom: #666554;
$custom-light: #919084;
$custom-dark: #000000;

JSON

{
  "hex": "#666554",
  "rgb": {
    "r": 102,
    "g": 101,
    "b": 84
  },
  "hsl": {
    "h": 56.667,
    "s": 9.677,
    "l": 36.471
  },
  "oklch": {
    "l": 0.50259,
    "c": 0.02603,
    "h": 104.5
  },
  "luminance": 0.12772
}

Semantic roles & 50–950 ramp

primary

#666554

secondary

#838493

accent

#79B375

background

#F8F8F8

surface

#F0F0EF

border

#CBCBCA

text

#0D0C0A

muted

#7D7D7C

Preview Lab

Preview with #666554

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

Preview Lab → · Contrast checker → · Palette generator →