#557DA1#557DA1

#557DA1 is a mid, moderate cyan. Relative luminance 0.192; OKLCH L 57.5% C 0.072 H 246.6°. Best body text is #000000 at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#557DA1
RGB	rgb(85, 125, 161)
HSL	hsl(208, 31%, 48%)
HSV	hsv(208, 47%, 63%)
CMYK	cmyk(47.2%, 22.4%, 0%, 36.9%)
CIE-LAB	lab(50.89, -3.80, -23.60)
CIE-LCH	lch(50.89, 23.90, 260.86°)
OKLab	oklab(57.48% -0.0285 -0.0657)
OKLCH	oklch(57.48% 0.072 246.6)
XYZ	xyz(17.5107, 19.1705, 36.4889)
Luminance	0.1917 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557DA1 #A17955

analogous

#55A19F #557DA1 #5557A1

triadic

#557DA1 #A1557D #7DA155

tetradic

#557DA1 #9F55A1 #A17955 #57A155

square

#557DA1 #9F55A1 #A17955 #57A155

split-complementary

#557DA1 #A15557 #A19F55

monochromatic

#2B3F51 #405E79 #557DA1 #7A9BB9 #A2B9CE

Accessibility & contrast

On white

4.34

#557DA1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.83

#557DA1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557DA1

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557DA1	#FFFFFF	#000000	##000000
##557DA1	1.00	4.34	4.83	4.83
#FFFFFF	4.34	1.00	21.00	21.00
#000000	4.83	21.00	1.00	1.00
##000000	4.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E7EA3

Deuteranopia (green-blind)

#6476A0

Tritanopia (blue-blind)

#348589

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #557da1;
/* rgb */ color: rgb(85, 125, 161);
/* oklch */ color: oklch(57.5% 0.072 246.6);

Tailwind

colors: {
  custom: {
    50: '#89a2bd',
    500: '#557da1',
    950: '#000000',
  },
}

SCSS

$custom: #557da1;
$custom-light: #89a2bd;
$custom-dark: #000000;

JSON

{
  "hex": "#557da1",
  "rgb": {
    "r": 85,
    "g": 125,
    "b": 161
  },
  "hsl": {
    "h": 208.421,
    "s": 30.894,
    "l": 48.235
  },
  "oklch": {
    "l": 0.57479,
    "c": 0.07158,
    "h": 246.6
  },
  "luminance": 0.19172
}

Semantic roles & 50–950 ramp

primary

#557DA1

secondary

#BCA896

accent

#9161C7

background

#F8F9FB

surface

#F0F2F6

border

#CBCCD0

text

#0C0F12

muted

#7D7E81

Preview Lab

Preview with #557DA1

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

Preview Lab → · Contrast checker → · Palette generator →