#666751#666751

#666751 is a mid, muted yellow. Relative luminance 0.131; OKLCH L 50.7% C 0.033 H 109.7°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#666751
RGB	rgb(102, 103, 81)
HSL	hsl(63, 12%, 36%)
HSV	hsv(63, 21%, 40%)
CMYK	cmyk(1%, 0%, 21.4%, 59.6%)
CIE-LAB	lab(42.94, -4.53, 12.32)
CIE-LCH	lch(42.94, 13.13, 110.17°)
OKLab	oklab(50.65% -0.0112 0.0315)
OKLCH	oklch(50.65% 0.033 109.7)
XYZ	xyz(11.8149, 13.1195, 9.6929)
Luminance	0.1312 (WCAG relative)
Temperature	neutral
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666751 #525167

analogous

#675D51 #666751 #5B6751

triadic

#666751 #516667 #675166

tetradic

#666751 #51675D #525167 #67515B

square

#666751 #51675D #525167 #67515B

split-complementary

#666751 #515B67 #5D5167

monochromatic

#22221B #444536 #666751 #88896C #A4A58D

Accessibility & contrast

On white

5.80

#666751 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#666751 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666751

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666751	#FFFFFF	#000000	##FFFFFF
##666751	1.00	5.80	3.62	5.80
#FFFFFF	5.80	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B6550

Deuteranopia (green-blind)

#6B6652

Tritanopia (blue-blind)

#696461

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #666751;
/* rgb */ color: rgb(102, 103, 81);
/* oklch */ color: oklch(50.7% 0.033 109.7);

Tailwind

colors: {
  custom: {
    50: '#919282',
    500: '#666751',
    950: '#000000',
  },
}

SCSS

$custom: #666751;
$custom-light: #919282;
$custom-dark: #000000;

JSON

{
  "hex": "#666751",
  "rgb": {
    "r": 102,
    "g": 103,
    "b": 81
  },
  "hsl": {
    "h": 62.727,
    "s": 11.957,
    "l": 36.078
  },
  "oklch": {
    "l": 0.50651,
    "c": 0.03341,
    "h": 109.7
  },
  "luminance": 0.13119
}

Semantic roles & 50–950 ramp

primary

#666751

secondary

#818094

accent

#73B576

background

#F8F8F7

surface

#F0F0EE

border

#CBCBC9

text

#0D0D0A

muted

#7D7D7C

Preview Lab

Preview with #666751

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

Preview Lab → · Contrast checker → · Palette generator →