#557CDF#557CDF

#557CDF is a mid, vivid blue. Relative luminance 0.217; OKLCH L 60.7% C 0.156 H 265.8°. Best body text is #000000 at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#557CDF
RGB	rgb(85, 124, 223)
HSL	hsl(223, 68%, 60%)
HSV	hsv(223, 62%, 87%)
CMYK	cmyk(61.9%, 44.4%, 0%, 12.5%)
CIE-LAB	lab(53.68, 16.87, -54.67)
CIE-LCH	lch(53.68, 57.22, 287.15°)
OKLab	oklab(60.65% -0.0116 -0.156)
OKLCH	oklch(60.65% 0.156 265.8)
XYZ	xyz(24.2687, 21.6722, 72.7020)
Luminance	0.2167 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557CDF #DFB855

analogous

#55C1DF #557CDF #7355DF

triadic

#557CDF #DF557C #7CDF55

tetradic

#557CDF #DF55C1 #DFB855 #55DF73

square

#557CDF #DF55C1 #DFB855 #55DF73

split-complementary

#557CDF #DF7355 #C1DF55

monochromatic

#1D419C #2757D0 #557CDF #89A4E9 #BCCBF2

Accessibility & contrast

On white

3.94

#557CDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.33

#557CDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557CDF

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557CDF	#FFFFFF	#000000	##000000
##557CDF	1.00	3.94	5.33	5.33
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.33	21.00	1.00	1.00
##000000	5.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D87E3

Deuteranopia (green-blind)

#377ADD

Tritanopia (blue-blind)

#0092A3

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #557cdf;
/* rgb */ color: rgb(85, 124, 223);
/* oklch */ color: oklch(60.7% 0.156 265.8);

Tailwind

colors: {
  custom: {
    50: '#91a1e9',
    500: '#557cdf',
    950: '#000000',
  },
}

SCSS

$custom: #557cdf;
$custom-light: #91a1e9;
$custom-dark: #000000;

JSON

{
  "hex": "#557cdf",
  "rgb": {
    "r": 85,
    "g": 124,
    "b": 223
  },
  "hsl": {
    "h": 223.043,
    "s": 68.317,
    "l": 60.392
  },
  "oklch": {
    "l": 0.60653,
    "c": 0.15648,
    "h": 265.8
  },
  "luminance": 0.21674
}

Semantic roles & 50–950 ramp

primary

#557CDF

secondary

#E2D3AE

accent

#9B15D0

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #557CDF

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

Preview Lab → · Contrast checker → · Palette generator →