#557BE2#557BE2

#557BE2 is a mid, vivid blue. Relative luminance 0.216; OKLCH L 60.6% C 0.162 H 266.4°. Best body text is #000000 at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#557BE2
RGB	rgb(85, 123, 226)
HSL	hsl(224, 71%, 61%)
HSV	hsv(224, 62%, 89%)
CMYK	cmyk(62.4%, 45.6%, 0%, 11.4%)
CIE-LAB	lab(53.59, 18.50, -56.51)
CIE-LCH	lch(53.59, 59.46, 288.13°)
OKLab	oklab(60.64% -0.0101 -0.1614)
OKLCH	oklch(60.64% 0.162 266.4)
XYZ	xyz(24.5520, 21.5860, 74.8094)
Luminance	0.2159 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557BE2 #E2BC55

analogous

#55C1E2 #557BE2 #7555E2

triadic

#557BE2 #E2557B #7BE255

tetradic

#557BE2 #E255C1 #E2BC55 #55E275

square

#557BE2 #E255C1 #E2BC55 #55E275

split-complementary

#557BE2 #E27555 #C1E255

monochromatic

#1B3FA1 #2454D5 #557BE2 #89A4EB #BECCF4

Accessibility & contrast

On white

3.95

#557BE2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.32

#557BE2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557BE2

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557BE2	#FFFFFF	#000000	##000000
##557BE2	1.00	3.95	5.32	5.32
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.32	21.00	1.00	1.00
##000000	5.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4987E6

Deuteranopia (green-blind)

#317AE0

Tritanopia (blue-blind)

#0092A3

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #557be2;
/* rgb */ color: rgb(85, 123, 226);
/* oklch */ color: oklch(60.6% 0.162 266.4);

Tailwind

colors: {
  custom: {
    50: '#91a0ec',
    500: '#557be2',
    950: '#000000',
  },
}

SCSS

$custom: #557be2;
$custom-light: #91a0ec;
$custom-dark: #000000;

JSON

{
  "hex": "#557be2",
  "rgb": {
    "r": 85,
    "g": 123,
    "b": 226
  },
  "hsl": {
    "h": 223.83,
    "s": 70.854,
    "l": 60.98
  },
  "oklch": {
    "l": 0.60638,
    "c": 0.16177,
    "h": 266.4
  },
  "luminance": 0.21588
}

Semantic roles & 50–950 ramp

primary

#557BE2

secondary

#E4D6AF

accent

#9F13D3

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #557BE2

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

Preview Lab → · Contrast checker → · Palette generator →