#666B60#666B60

#666B60 is a mid, near-neutral grey. Relative luminance 0.142; OKLCH L 52.0% C 0.018 H 127.1°. Best body text is #FFFFFF at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#666B60
RGB	rgb(102, 107, 96)
HSL	hsl(87, 5%, 40%)
HSV	hsv(87, 10%, 42%)
CMYK	cmyk(4.7%, 0%, 10.3%, 58%)
CIE-LAB	lab(44.50, -4.15, 5.51)
CIE-LCH	lch(44.50, 6.90, 127.02°)
OKLab	oklab(52% -0.0108 0.0144)
OKLCH	oklch(52% 0.018 127.1)
XYZ	xyz(12.8482, 14.1847, 13.1251)
Luminance	0.1419 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666B60 #65606B

analogous

#6B6B60 #666B60 #606B60

triadic

#666B60 #60666B #6B6066

tetradic

#666B60 #606B6B #65606B #6B6060

square

#666B60 #606B6B #65606B #6B6060

split-complementary

#666B60 #60606B #6B606B

monochromatic

#282A26 #474B43 #666B60 #858B7D #A3A89E

Accessibility & contrast

On white

5.47

#666B60 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.84

#666B60 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666B60

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666B60	#FFFFFF	#000000	##FFFFFF
##666B60	1.00	5.47	3.84	5.47
#FFFFFF	5.47	1.00	21.00	1.00
#000000	3.84	21.00	1.00	21.00
##FFFFFF	5.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C695F

Deuteranopia (green-blind)

#6C6960

Tritanopia (blue-blind)

#676A68

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #666b60;
/* rgb */ color: rgb(102, 107, 96);
/* oklch */ color: oklch(52.0% 0.018 127.1);

Tailwind

colors: {
  custom: {
    50: '#91958d',
    500: '#666b60',
    950: '#000000',
  },
}

SCSS

$custom: #666b60;
$custom-light: #91958d;
$custom-dark: #000000;

JSON

{
  "hex": "#666b60",
  "rgb": {
    "r": 102,
    "g": 107,
    "b": 96
  },
  "hsl": {
    "h": 87.273,
    "s": 5.419,
    "l": 39.804
  },
  "oklch": {
    "l": 0.52001,
    "c": 0.01798,
    "h": 127.1
  },
  "luminance": 0.14185
}

Semantic roles & 50–950 ramp

primary

#666B60

secondary

#938F97

accent

#79AF91

background

#F8F9F8

surface

#F0F1F0

border

#CBCBCB

text

#0C0D0C

muted

#7D7E7D

Preview Lab

Preview with #666B60

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

Preview Lab → · Contrast checker → · Palette generator →