#557EF1#557EF1

#557EF1 is a light, vivid blue. Relative luminance 0.232; OKLCH L 62.2% C 0.178 H 266.5°. Best body text is #000000 at 5.64:1 contrast (WCAG AA passes).

Color values

HEX	#557EF1
RGB	rgb(85, 126, 241)
HSL	hsl(224, 85%, 64%)
HSV	hsv(224, 65%, 95%)
CMYK	cmyk(64.7%, 47.7%, 0%, 5.5%)
CIE-LAB	lab(55.28, 21.77, -62.16)
CIE-LCH	lch(55.28, 65.86, 289.30°)
OKLab	oklab(62.22% -0.0109 -0.178)
OKLCH	oklch(62.22% 0.178 266.5)
XYZ	xyz(27.0789, 23.2013, 86.2533)
Luminance	0.2320 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557EF1 #F1C855

analogous

#55CCF1 #557EF1 #7A55F1

triadic

#557EF1 #F1557E #7EF155

tetradic

#557EF1 #F155CC #F1C855 #55F17A

square

#557EF1 #F155CC #F1C855 #55F17A

split-complementary

#557EF1 #F17A55 #CCF155

monochromatic

#0F3DBC #1C53EC #557EF1 #8EA9F6 #C6D4FA

Accessibility & contrast

On white

3.72

#557EF1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.64

#557EF1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557EF1

5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557EF1	#FFFFFF	#000000	##000000
##557EF1	1.00	3.72	5.64	5.64
#FFFFFF	3.72	1.00	21.00	21.00
#000000	5.64	21.00	1.00	1.00
##000000	5.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#418CF5

Deuteranopia (green-blind)

#1D7EEF

Tritanopia (blue-blind)

#0099AC

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #557ef1;
/* rgb */ color: rgb(85, 126, 241);
/* oklch */ color: oklch(62.2% 0.178 266.5);

Tailwind

colors: {
  custom: {
    50: '#94a2f6',
    500: '#557ef1',
    950: '#000000',
  },
}

SCSS

$custom: #557ef1;
$custom-light: #94a2f6;
$custom-dark: #000000;

JSON

{
  "hex": "#557ef1",
  "rgb": {
    "r": 85,
    "g": 126,
    "b": 241
  },
  "hsl": {
    "h": 224.231,
    "s": 84.783,
    "l": 63.922
  },
  "oklch": {
    "l": 0.62223,
    "c": 0.17837,
    "h": 266.5
  },
  "luminance": 0.23204
}

Semantic roles & 50–950 ramp

primary

#557EF1

secondary

#ECDEB6

accent

#A704E1

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0E0F17

muted

#7E7E85

Preview Lab

Preview with #557EF1

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

Preview Lab → · Contrast checker → · Palette generator →