#557AEA#557AEA

#557AEA is a mid, vivid blue. Relative luminance 0.218; OKLCH L 61.0% C 0.174 H 267.3°. Best body text is #000000 at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#557AEA
RGB	rgb(85, 122, 234)
HSL	hsl(225, 78%, 63%)
HSV	hsv(225, 64%, 92%)
CMYK	cmyk(63.7%, 47.9%, 0%, 8.2%)
CIE-LAB	lab(53.80, 21.83, -60.64)
CIE-LCH	lch(53.80, 64.45, 289.80°)
OKLab	oklab(60.96% -0.008 -0.1736)
OKLCH	oklch(60.96% 0.174 267.3)
XYZ	xyz(25.5520, 21.7886, 80.6850)
Luminance	0.2179 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557AEA #EAC555

analogous

#55C4EA #557AEA #7B55EA

triadic

#557AEA #EA557A #7AEA55

tetradic

#557AEA #EA55C4 #EAC555 #55EA7B

square

#557AEA #EA55C4 #EAC555 #55EA7B

split-complementary

#557AEA #EA7B55 #C4EA55

monochromatic

#163CAF #1F4FE3 #557AEA #8BA5F1 #C2CFF7

Accessibility & contrast

On white

3.92

#557AEA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.36

#557AEA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557AEA

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557AEA	#FFFFFF	#000000	##000000
##557AEA	1.00	3.92	5.36	5.36
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.36	21.00	1.00	1.00
##000000	5.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F88EE

Deuteranopia (green-blind)

#1E7AE8

Tritanopia (blue-blind)

#0094A7

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #557aea;
/* rgb */ color: rgb(85, 122, 234);
/* oklch */ color: oklch(61.0% 0.174 267.3);

Tailwind

colors: {
  custom: {
    50: '#93a0f1',
    500: '#557aea',
    950: '#000000',
  },
}

SCSS

$custom: #557aea;
$custom-light: #93a0f1;
$custom-dark: #000000;

JSON

{
  "hex": "#557aea",
  "rgb": {
    "r": 85,
    "g": 122,
    "b": 234
  },
  "hsl": {
    "h": 225.101,
    "s": 78.01,
    "l": 62.549
  },
  "oklch": {
    "l": 0.60959,
    "c": 0.1738,
    "h": 267.3
  },
  "luminance": 0.21791
}

Semantic roles & 50–950 ramp

primary

#557AEA

secondary

#E8DBB2

accent

#A70BDA

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #557AEA

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

Preview Lab → · Contrast checker → · Palette generator →