#255166#255166

#255166 is a dark, muted cyan. Relative luminance 0.072; OKLCH L 41.3% C 0.060 H 231.4°. Best body text is #FFFFFF at 8.58:1 contrast (WCAG AA passes).

Color values

HEX	#255166
RGB	rgb(37, 81, 102)
HSL	hsl(199, 47%, 27%)
HSV	hsv(199, 64%, 40%)
CMYK	cmyk(63.7%, 20.6%, 0%, 60%)
CIE-LAB	lab(32.34, -8.15, -16.73)
CIE-LCH	lch(32.34, 18.61, 244.04°)
OKLab	oklab(41.33% -0.0373 -0.0467)
OKLCH	oklch(41.33% 0.06 231.4)
XYZ	xyz(6.1027, 7.2369, 13.6430)
Luminance	0.0724 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255166 #663A25

analogous

#25665B #255166 #253066

triadic

#255166 #662551 #516625

tetradic

#255166 #5B2566 #663A25 #306625

square

#255166 #5B2566 #663A25 #306625

split-complementary

#255166 #662530 #665B25

monochromatic

#081216 #152D39 #255166 #357593 #4997BD

Accessibility & contrast

On white

8.58

#255166 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#255166 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255166

8.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255166	#FFFFFF	#000000	##FFFFFF
##255166	1.00	8.58	2.45	8.58
#FFFFFF	8.58	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#475067

Deuteranopia (green-blind)

#3D4966

Tritanopia (blue-blind)

#005758

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #255166;
/* rgb */ color: rgb(37, 81, 102);
/* oklch */ color: oklch(41.3% 0.060 231.4);

Tailwind

colors: {
  custom: {
    50: '#668191',
    500: '#255166',
    950: '#000000',
  },
}

SCSS

$custom: #255166;
$custom-light: #668191;
$custom-dark: #000000;

JSON

{
  "hex": "#255166",
  "rgb": {
    "r": 37,
    "g": 81,
    "b": 102
  },
  "hsl": {
    "h": 199.385,
    "s": 46.763,
    "l": 27.255
  },
  "oklch": {
    "l": 0.41329,
    "c": 0.05982,
    "h": 231.4
  },
  "luminance": 0.07237
}

Semantic roles & 50–950 ramp

primary

#255166

secondary

#99664E

accent

#7C51D6

background

#F6F7F8

surface

#EBEEF0

border

#C6C9CB

text

#060A0C

muted

#7A7C7D

Preview Lab

Preview with #255166

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

Preview Lab → · Contrast checker → · Palette generator →