#557FE3#557FE3

#557FE3 is a mid, vivid blue. Relative luminance 0.227; OKLCH L 61.5% C 0.158 H 265.0°. Best body text is #000000 at 5.53:1 contrast (WCAG AA passes).

Color values

HEX	#557FE3
RGB	rgb(85, 127, 227)
HSL	hsl(222, 72%, 61%)
HSV	hsv(222, 63%, 89%)
CMYK	cmyk(62.6%, 44.1%, 0%, 11%)
CIE-LAB	lab(54.71, 16.39, -55.26)
CIE-LCH	lch(54.71, 57.64, 286.52°)
OKLab	oklab(61.52% -0.0139 -0.1577)
OKLCH	oklch(61.52% 0.158 265)
XYZ	xyz(25.1960, 22.6538, 75.7030)
Luminance	0.2266 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557FE3 #E3B955

analogous

#55C6E3 #557FE3 #7255E3

triadic

#557FE3 #E3557F #7FE355

tetradic

#557FE3 #E355C6 #E3B955 #55E372

square

#557FE3 #E355C6 #E3B955 #55E372

split-complementary

#557FE3 #E37255 #C6E355

monochromatic

#1B43A3 #2359D7 #557FE3 #8AA7EC #BECEF4

Accessibility & contrast

On white

3.80

#557FE3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.53

#557FE3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557FE3

5.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557FE3	#FFFFFF	#000000	##000000
##557FE3	1.00	3.80	5.53	5.53
#FFFFFF	3.80	1.00	21.00	21.00
#000000	5.53	21.00	1.00	1.00
##000000	5.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#508AE7

Deuteranopia (green-blind)

#397DE1

Tritanopia (blue-blind)

#0096A6

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #557fe3;
/* rgb */ color: rgb(85, 127, 227);
/* oklch */ color: oklch(61.5% 0.158 265.0);

Tailwind

colors: {
  custom: {
    50: '#91a3ec',
    500: '#557fe3',
    950: '#000000',
  },
}

SCSS

$custom: #557fe3;
$custom-light: #91a3ec;
$custom-dark: #000000;

JSON

{
  "hex": "#557fe3",
  "rgb": {
    "r": 85,
    "g": 127,
    "b": 227
  },
  "hsl": {
    "h": 222.254,
    "s": 71.717,
    "l": 61.176
  },
  "oklch": {
    "l": 0.61523,
    "c": 0.15834,
    "h": 265
  },
  "luminance": 0.22656
}

Semantic roles & 50–950 ramp

primary

#557FE3

secondary

#E5D5AF

accent

#9A12D4

background

#F9FAFE

surface

#F2F3FD

border

#CCCDD5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #557FE3

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

Preview Lab → · Contrast checker → · Palette generator →