#557EE4#557EE4

#557EE4 is a mid, vivid blue. Relative luminance 0.225; OKLCH L 61.4% C 0.161 H 265.5°. Best body text is #000000 at 5.49:1 contrast (WCAG AA passes).

Color values

HEX	#557EE4
RGB	rgb(85, 126, 228)
HSL	hsl(223, 73%, 61%)
HSV	hsv(223, 63%, 89%)
CMYK	cmyk(62.7%, 44.7%, 0%, 10.6%)
CIE-LAB	lab(54.50, 17.34, -56.16)
CIE-LCH	lch(54.50, 58.77, 287.16°)
OKLab	oklab(61.38% -0.0127 -0.1604)
OKLCH	oklch(61.38% 0.161 265.5)
XYZ	xyz(25.2059, 22.4522, 76.3891)
Luminance	0.2245 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557EE4 #E4BB55

analogous

#55C6E4 #557EE4 #7455E4

triadic

#557EE4 #E4557E #7EE455

tetradic

#557EE4 #E455C6 #E4BB55 #55E474

square

#557EE4 #E455C6 #E4BB55 #55E474

split-complementary

#557EE4 #E47455 #C6E455

monochromatic

#1A42A4 #2357D9 #557EE4 #8AA6EC #BFCEF5

Accessibility & contrast

On white

3.82

#557EE4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.49

#557EE4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557EE4

5.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557EE4	#FFFFFF	#000000	##000000
##557EE4	1.00	3.82	5.49	5.49
#FFFFFF	3.82	1.00	21.00	21.00
#000000	5.49	21.00	1.00	1.00
##000000	5.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D89E8

Deuteranopia (green-blind)

#357CE2

Tritanopia (blue-blind)

#0095A6

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #557ee4;
/* rgb */ color: rgb(85, 126, 228);
/* oklch */ color: oklch(61.4% 0.161 265.5);

Tailwind

colors: {
  custom: {
    50: '#92a2ed',
    500: '#557ee4',
    950: '#000000',
  },
}

SCSS

$custom: #557ee4;
$custom-light: #92a2ed;
$custom-dark: #000000;

JSON

{
  "hex": "#557ee4",
  "rgb": {
    "r": 85,
    "g": 126,
    "b": 228
  },
  "hsl": {
    "h": 222.797,
    "s": 72.589,
    "l": 61.373
  },
  "oklch": {
    "l": 0.6138,
    "c": 0.16088,
    "h": 265.5
  },
  "luminance": 0.22454
}

Semantic roles & 50–950 ramp

primary

#557EE4

secondary

#E5D6B0

accent

#9D11D5

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #557EE4

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

Preview Lab → · Contrast checker → · Palette generator →