#557CDC#557CDC

#557CDC is a mid, vivid blue. Relative luminance 0.215; OKLCH L 60.5% C 0.152 H 265.5°. Best body text is #000000 at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#557CDC
RGB	rgb(85, 124, 220)
HSL	hsl(223, 66%, 60%)
HSV	hsv(223, 61%, 86%)
CMYK	cmyk(61.4%, 43.6%, 0%, 13.7%)
CIE-LAB	lab(53.51, 15.86, -53.26)
CIE-LCH	lch(53.51, 55.57, 286.58°)
OKLab	oklab(60.47% -0.0121 -0.1519)
OKLCH	oklch(60.47% 0.152 265.5)
XYZ	xyz(23.8678, 21.5118, 70.5907)
Luminance	0.2151 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557CDC #DCB555

analogous

#55BFDC #557CDC #7255DC

triadic

#557CDC #DC557C #7CDC55

tetradic

#557CDC #DC55BF #DCB555 #55DC72

square

#557CDC #DC55BF #DCB555 #55DC72

split-complementary

#557CDC #DC7255 #BFDC55

monochromatic

#1F4297 #2A58CA #557CDC #88A3E6 #BBCAF1

Accessibility & contrast

On white

3.96

#557CDC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.30

#557CDC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557CDC

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557CDC	#FFFFFF	#000000	##000000
##557CDC	1.00	3.96	5.30	5.30
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.30	21.00	1.00	1.00
##000000	5.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5086E0

Deuteranopia (green-blind)

#3B7ADA

Tritanopia (blue-blind)

#0092A1

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #557cdc;
/* rgb */ color: rgb(85, 124, 220);
/* oklch */ color: oklch(60.5% 0.152 265.5);

Tailwind

colors: {
  custom: {
    50: '#90a1e7',
    500: '#557cdc',
    950: '#000000',
  },
}

SCSS

$custom: #557cdc;
$custom-light: #90a1e7;
$custom-dark: #000000;

JSON

{
  "hex": "#557cdc",
  "rgb": {
    "r": 85,
    "g": 124,
    "b": 220
  },
  "hsl": {
    "h": 222.667,
    "s": 65.854,
    "l": 59.804
  },
  "oklch": {
    "l": 0.60465,
    "c": 0.15239,
    "h": 265.5
  },
  "luminance": 0.21514
}

Semantic roles & 50–950 ramp

primary

#557CDC

secondary

#E0D1AC

accent

#B83FE9

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #557CDC

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

Preview Lab → · Contrast checker → · Palette generator →