#255666#255666

#255666 is a dark, muted cyan. Relative luminance 0.080; OKLCH L 42.7% C 0.059 H 222.3°. Best body text is #FFFFFF at 8.07:1 contrast (WCAG AA passes).

Color values

HEX	#255666
RGB	rgb(37, 86, 102)
HSL	hsl(195, 47%, 27%)
HSV	hsv(195, 64%, 40%)
CMYK	cmyk(63.7%, 15.7%, 0%, 60%)
CIE-LAB	lab(34.00, -11.17, -14.19)
CIE-LCH	lch(34.00, 18.06, 231.80°)
OKLab	oklab(42.65% -0.0435 -0.0395)
OKLCH	oklch(42.65% 0.059 222.3)
XYZ	xyz(6.4881, 8.0076, 13.7715)
Luminance	0.0801 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255666 #663525

analogous

#256656 #255666 #253666

triadic

#255666 #662556 #566625

tetradic

#255666 #562566 #663525 #366625

square

#255666 #562566 #663525 #366625

split-complementary

#255666 #662536 #665625

monochromatic

#081316 #153039 #255666 #357C93 #49A0BD

Accessibility & contrast

On white

8.07

#255666 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#255666 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255666

8.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255666	#FFFFFF	#000000	##FFFFFF
##255666	1.00	8.07	2.60	8.07
#FFFFFF	8.07	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D5467

Deuteranopia (green-blind)

#434D66

Tritanopia (blue-blind)

#005B5B

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #255666;
/* rgb */ color: rgb(37, 86, 102);
/* oklch */ color: oklch(42.7% 0.059 222.3);

Tailwind

colors: {
  custom: {
    50: '#678591',
    500: '#255666',
    950: '#000000',
  },
}

SCSS

$custom: #255666;
$custom-light: #678591;
$custom-dark: #000000;

JSON

{
  "hex": "#255666",
  "rgb": {
    "r": 37,
    "g": 86,
    "b": 102
  },
  "hsl": {
    "h": 194.769,
    "s": 46.763,
    "l": 27.255
  },
  "oklch": {
    "l": 0.42652,
    "c": 0.05871,
    "h": 222.3
  },
  "luminance": 0.08008
}

Semantic roles & 50–950 ramp

primary

#255666

secondary

#99604E

accent

#7251D6

background

#F6F8F8

surface

#EBEFF0

border

#C6CACB

text

#060B0C

muted

#7A7C7D

Preview Lab

Preview with #255666

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

Preview Lab → · Contrast checker → · Palette generator →