#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
RGBrgb(85, 125, 161)
HSLhsl(208, 31%, 48%)
HSVhsv(208, 47%, 63%)
CMYKcmyk(47.2%, 22.4%, 0%, 36.9%)
CIE-LABlab(50.89, -3.80, -23.60)
CIE-LCHlch(50.89, 23.90, 260.86°)
OKLaboklab(57.48% -0.0285 -0.0657)
OKLCHoklch(57.48% 0.072 246.6)
XYZxyz(17.5107, 19.1705, 36.4889)
Luminance0.1917 (WCAG relative)
Temperaturecool
Familycyan

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
##557DA11.004.344.834.83
#FFFFFF4.341.0021.0021.00
#0000004.8321.001.001.00
##0000004.8321.001.001.00

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 →

#557DA1 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva