#405666#405666

#405666 is a dark, muted cyan. Relative luminance 0.087; OKLCH L 44.2% C 0.038 H 240.3°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#405666
RGB	rgb(64, 86, 102)
HSL	hsl(205, 23%, 33%)
HSV	hsv(205, 37%, 40%)
CMYK	cmyk(37.3%, 15.7%, 0%, 60%)
CIE-LAB	lab(35.41, -3.94, -11.91)
CIE-LCH	lch(35.41, 12.55, 251.69°)
OKLab	oklab(44.15% -0.0187 -0.0328)
OKLCH	oklch(44.15% 0.038 240.3)
XYZ	xyz(7.8397, 8.7045, 13.8348)
Luminance	0.0871 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405666 #665040

analogous

#406663 #405666 #404366

triadic

#405666 #664056 #566640

tetradic

#405666 #634066 #665040 #436640

square

#405666 #634066 #665040 #436640

split-complementary

#405666 #664043 #666340

monochromatic

#11171B #283640 #405666 #58768C #7794AA

Accessibility & contrast

On white

7.66

#405666 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#405666 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #405666

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405666	#FFFFFF	#000000	##FFFFFF
##405666	1.00	7.66	2.74	7.66
#FFFFFF	7.66	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F5667

Deuteranopia (green-blind)

#4A5166

Tritanopia (blue-blind)

#335A5B

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #405666;
/* rgb */ color: rgb(64, 86, 102);
/* oklch */ color: oklch(44.2% 0.038 240.3);

Tailwind

colors: {
  custom: {
    50: '#768591',
    500: '#405666',
    950: '#000000',
  },
}

SCSS

$custom: #405666;
$custom-light: #768591;
$custom-dark: #000000;

JSON

{
  "hex": "#405666",
  "rgb": {
    "r": 64,
    "g": 86,
    "b": 102
  },
  "hsl": {
    "h": 205.263,
    "s": 22.892,
    "l": 32.549
  },
  "oklch": {
    "l": 0.44153,
    "c": 0.03773,
    "h": 240.3
  },
  "luminance": 0.08705
}

Semantic roles & 50–950 ramp

primary

#405666

secondary

#957E6D

accent

#8D68BF

background

#F7F8F8

surface

#EDEFF0

border

#C8CACB

text

#080B0C

muted

#7B7C7D

Preview Lab

Preview with #405666

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

Preview Lab → · Contrast checker → · Palette generator →