#557AE4#557AE4

#557AE4 is a mid, vivid blue. Relative luminance 0.215; OKLCH L 60.6% C 0.166 H 266.9°. Best body text is #000000 at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#557AE4
RGB	rgb(85, 122, 228)
HSL	hsl(224, 73%, 61%)
HSV	hsv(224, 63%, 89%)
CMYK	cmyk(62.7%, 46.5%, 0%, 10.6%)
CIE-LAB	lab(53.44, 19.79, -57.86)
CIE-LCH	lch(53.44, 61.15, 288.88°)
OKLab	oklab(60.56% -0.0088 -0.1655)
OKLCH	oklch(60.56% 0.166 266.9)
XYZ	xyz(24.7046, 21.4496, 76.2220)
Luminance	0.2145 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557AE4 #E4BF55

analogous

#55C1E4 #557AE4 #7855E4

triadic

#557AE4 #E4557A #7AE455

tetradic

#557AE4 #E455C1 #E4BF55 #55E478

square

#557AE4 #E455C1 #E4BF55 #55E478

split-complementary

#557AE4 #E47855 #C1E455

monochromatic

#1A3EA4 #2352D9 #557AE4 #8AA3EC #BFCDF5

Accessibility & contrast

On white

3.97

#557AE4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.29

#557AE4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557AE4

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557AE4	#FFFFFF	#000000	##000000
##557AE4	1.00	3.97	5.29	5.29
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.29	21.00	1.00	1.00
##000000	5.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4587E8

Deuteranopia (green-blind)

#2B7AE2

Tritanopia (blue-blind)

#0092A4

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #557ae4;
/* rgb */ color: rgb(85, 122, 228);
/* oklch */ color: oklch(60.6% 0.166 266.9);

Tailwind

colors: {
  custom: {
    50: '#92a0ed',
    500: '#557ae4',
    950: '#000000',
  },
}

SCSS

$custom: #557ae4;
$custom-light: #92a0ed;
$custom-dark: #000000;

JSON

{
  "hex": "#557ae4",
  "rgb": {
    "r": 85,
    "g": 122,
    "b": 228
  },
  "hsl": {
    "h": 224.476,
    "s": 72.589,
    "l": 61.373
  },
  "oklch": {
    "l": 0.60564,
    "c": 0.16569,
    "h": 266.9
  },
  "luminance": 0.21452
}

Semantic roles & 50–950 ramp

primary

#557AE4

secondary

#E5D7B0

accent

#A211D5

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #557AE4

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

Preview Lab → · Contrast checker → · Palette generator →