#557AED#557AED

#557AED is a mid, vivid blue. Relative luminance 0.220; OKLCH L 61.2% C 0.178 H 267.5°. Best body text is #000000 at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#557AED
RGB	rgb(85, 122, 237)
HSL	hsl(225, 81%, 63%)
HSV	hsv(225, 64%, 93%)
CMYK	cmyk(64.1%, 48.5%, 0%, 7.1%)
CIE-LAB	lab(53.99, 22.85, -62.01)
CIE-LCH	lch(53.99, 66.09, 290.23°)
OKLab	oklab(61.16% -0.0077 -0.1777)
OKLCH	oklch(61.16% 0.178 267.5)
XYZ	xyz(25.9867, 21.9624, 82.9740)
Luminance	0.2197 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557AED #EDC855

analogous

#55C6ED #557AED #7C55ED

triadic

#557AED #ED557A #7AED55

tetradic

#557AED #ED55C6 #EDC855 #55ED7C

square

#557AED #ED55C6 #EDC855 #55ED7C

split-complementary

#557AED #ED7C55 #C6ED55

monochromatic

#133AB4 #1E4FE7 #557AED #8CA5F3 #C4D1F9

Accessibility & contrast

On white

3.89

#557AED on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.39

#557AED on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557AED

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557AED	#FFFFFF	#000000	##000000
##557AED	1.00	3.89	5.39	5.39
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.39	21.00	1.00	1.00
##000000	5.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C88F1

Deuteranopia (green-blind)

#167BEB

Tritanopia (blue-blind)

#0095A8

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #557aed;
/* rgb */ color: rgb(85, 122, 237);
/* oklch */ color: oklch(61.2% 0.178 267.5);

Tailwind

colors: {
  custom: {
    50: '#93a0f3',
    500: '#557aed',
    950: '#000000',
  },
}

SCSS

$custom: #557aed;
$custom-light: #93a0f3;
$custom-dark: #000000;

JSON

{
  "hex": "#557aed",
  "rgb": {
    "r": 85,
    "g": 122,
    "b": 237
  },
  "hsl": {
    "h": 225.395,
    "s": 80.851,
    "l": 63.137
  },
  "oklch": {
    "l": 0.61159,
    "c": 0.17783,
    "h": 267.5
  },
  "luminance": 0.21965
}

Semantic roles & 50–950 ramp

primary

#557AED

secondary

#EADDB4

accent

#A908DD

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #557AED

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

Preview Lab → · Contrast checker → · Palette generator →