#557CEA#557CEA

#557CEA is a mid, vivid blue. Relative luminance 0.223; OKLCH L 61.4% C 0.171 H 266.7°. Best body text is #000000 at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#557CEA
RGB	rgb(85, 124, 234)
HSL	hsl(224, 78%, 63%)
HSV	hsv(224, 64%, 92%)
CMYK	cmyk(63.7%, 47%, 0%, 8.2%)
CIE-LAB	lab(54.33, 20.60, -59.79)
CIE-LCH	lch(54.33, 63.24, 289.01°)
OKLab	oklab(61.36% -0.0099 -0.1711)
OKLCH	oklch(61.36% 0.171 266.7)
XYZ	xyz(25.8001, 22.2848, 80.7677)
Luminance	0.2229 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557CEA #EAC355

analogous

#55C7EA #557CEA #7855EA

triadic

#557CEA #EA557C #7CEA55

tetradic

#557CEA #EA55C7 #EAC355 #55EA78

square

#557CEA #EA55C7 #EAC355 #55EA78

split-complementary

#557CEA #EA7855 #C7EA55

monochromatic

#163EAF #1F52E3 #557CEA #8BA6F1 #C2D0F7

Accessibility & contrast

On white

3.85

#557CEA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.46

#557CEA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557CEA

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557CEA	#FFFFFF	#000000	##000000
##557CEA	1.00	3.85	5.46	5.46
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.46	21.00	1.00	1.00
##000000	5.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4489EE

Deuteranopia (green-blind)

#267CE8

Tritanopia (blue-blind)

#0095A8

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #557cea;
/* rgb */ color: rgb(85, 124, 234);
/* oklch */ color: oklch(61.4% 0.171 266.7);

Tailwind

colors: {
  custom: {
    50: '#93a1f1',
    500: '#557cea',
    950: '#000000',
  },
}

SCSS

$custom: #557cea;
$custom-light: #93a1f1;
$custom-dark: #000000;

JSON

{
  "hex": "#557cea",
  "rgb": {
    "r": 85,
    "g": 124,
    "b": 234
  },
  "hsl": {
    "h": 224.295,
    "s": 78.01,
    "l": 62.549
  },
  "oklch": {
    "l": 0.6136,
    "c": 0.17139,
    "h": 266.7
  },
  "luminance": 0.22287
}

Semantic roles & 50–950 ramp

primary

#557CEA

secondary

#E8DAB2

accent

#A40BDA

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #557CEA

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

Preview Lab → · Contrast checker → · Palette generator →