#557FAC#557FAC

#557FAC is a mid, moderate cyan. Relative luminance 0.201; OKLCH L 58.5% C 0.084 H 251.0°. Best body text is #000000 at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#557FAC
RGB	rgb(85, 127, 172)
HSL	hsl(211, 34%, 50%)
HSV	hsv(211, 51%, 67%)
CMYK	cmyk(50.6%, 26.2%, 0%, 32.5%)
CIE-LAB	lab(51.94, -1.61, -28.35)
CIE-LCH	lch(51.94, 28.40, 266.75°)
OKLab	oklab(58.46% -0.0272 -0.0793)
OKLCH	oklch(58.46% 0.084 251)
XYZ	xyz(18.7795, 20.0872, 41.9093)
Luminance	0.2009 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557FAC #AC8255

analogous

#55ABAC #557FAC #5655AC

triadic

#557FAC #AC557F #7FAC55

tetradic

#557FAC #AC55AB #AC8255 #55AC56

square

#557FAC #AC55AB #AC8255 #55AC56

split-complementary

#557FAC #AC5655 #ABAC55

monochromatic

#2C435A #406184 #557FAC #7E9EC0 #A7BDD4

Accessibility & contrast

On white

4.19

#557FAC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.02

#557FAC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557FAC

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557FAC	#FFFFFF	#000000	##000000
##557FAC	1.00	4.19	5.02	5.02
#FFFFFF	4.19	1.00	21.00	21.00
#000000	5.02	21.00	1.00	1.00
##000000	5.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D81AE

Deuteranopia (green-blind)

#6278AB

Tritanopia (blue-blind)

#2B898E

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #557fac;
/* rgb */ color: rgb(85, 127, 172);
/* oklch */ color: oklch(58.5% 0.084 251.0);

Tailwind

colors: {
  custom: {
    50: '#8aa4c5',
    500: '#557fac',
    950: '#000000',
  },
}

SCSS

$custom: #557fac;
$custom-light: #8aa4c5;
$custom-dark: #000000;

JSON

{
  "hex": "#557fac",
  "rgb": {
    "r": 85,
    "g": 127,
    "b": 172
  },
  "hsl": {
    "h": 211.034,
    "s": 34.387,
    "l": 50.392
  },
  "oklch": {
    "l": 0.58458,
    "c": 0.08385,
    "h": 251
  },
  "luminance": 0.20089
}

Semantic roles & 50–950 ramp

primary

#557FAC

secondary

#C2AF9B

accent

#965DCA

background

#F8FAFC

surface

#F0F3F8

border

#CBCDD1

text

#0C0F12

muted

#7D7F81

Preview Lab

Preview with #557FAC

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

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