#557CF1#557CF1

#557CF1 is a mid, vivid blue. Relative luminance 0.227; OKLCH L 61.8% C 0.181 H 267.1°. Best body text is #000000 at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#557CF1
RGB	rgb(85, 124, 241)
HSL	hsl(225, 85%, 64%)
HSV	hsv(225, 65%, 95%)
CMYK	cmyk(64.7%, 48.5%, 0%, 5.5%)
CIE-LAB	lab(54.76, 22.99, -63.00)
CIE-LCH	lch(54.76, 67.06, 290.05°)
OKLab	oklab(61.83% -0.0091 -0.1805)
OKLCH	oklch(61.83% 0.181 267.1)
XYZ	xyz(26.8257, 22.6950, 86.1689)
Luminance	0.2270 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557CF1 #F1CA55

analogous

#55CAF1 #557CF1 #7C55F1

triadic

#557CF1 #F1557C #7CF155

tetradic

#557CF1 #F155CA #F1CA55 #55F17C

square

#557CF1 #F155CA #F1CA55 #55F17C

split-complementary

#557CF1 #F17C55 #CAF155

monochromatic

#0F3BBC #1C50EC #557CF1 #8EA8F6 #C6D3FA

Accessibility & contrast

On white

3.79

#557CF1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.54

#557CF1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557CF1

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557CF1	#FFFFFF	#000000	##000000
##557CF1	1.00	3.79	5.54	5.54
#FFFFFF	3.79	1.00	21.00	21.00
#000000	5.54	21.00	1.00	1.00
##000000	5.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C8AF5

Deuteranopia (green-blind)

#137CEF

Tritanopia (blue-blind)

#0097AB

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #557cf1;
/* rgb */ color: rgb(85, 124, 241);
/* oklch */ color: oklch(61.8% 0.181 267.1);

Tailwind

colors: {
  custom: {
    50: '#94a1f6',
    500: '#557cf1',
    950: '#000000',
  },
}

SCSS

$custom: #557cf1;
$custom-light: #94a1f6;
$custom-dark: #000000;

JSON

{
  "hex": "#557cf1",
  "rgb": {
    "r": 85,
    "g": 124,
    "b": 241
  },
  "hsl": {
    "h": 225,
    "s": 84.783,
    "l": 63.922
  },
  "oklch": {
    "l": 0.61825,
    "c": 0.18077,
    "h": 267.1
  },
  "luminance": 0.22697
}

Semantic roles & 50–950 ramp

primary

#557CF1

secondary

#ECDFB6

accent

#AA04E1

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #557CF1

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

Preview Lab → · Contrast checker → · Palette generator →