#557FF0#557FF0

#557FF0 is a light, vivid blue. Relative luminance 0.234; OKLCH L 62.4% C 0.176 H 266.1°. Best body text is #000000 at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#557FF0
RGB	rgb(85, 127, 240)
HSL	hsl(224, 84%, 64%)
HSV	hsv(224, 65%, 94%)
CMYK	cmyk(64.6%, 47.1%, 0%, 5.9%)
CIE-LAB	lab(55.48, 20.81, -61.28)
CIE-LCH	lch(55.48, 64.72, 288.76°)
OKLab	oklab(62.36% -0.0119 -0.1754)
OKLCH	oklch(62.36% 0.176 266.1)
XYZ	xyz(27.0584, 23.3988, 85.5116)
Luminance	0.2340 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557FF0 #F0C655

analogous

#55CCF0 #557FF0 #7855F0

triadic

#557FF0 #F0557F #7FF055

tetradic

#557FF0 #F055CC #F0C655 #55F078

square

#557FF0 #F055CC #F0C655 #55F078

split-complementary

#557FF0 #F07855 #CCF055

monochromatic

#103EBA #1D55EB #557FF0 #8DA9F5 #C5D4FA

Accessibility & contrast

On white

3.70

#557FF0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.68

#557FF0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557FF0

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557FF0	#FFFFFF	#000000	##000000
##557FF0	1.00	3.70	5.68	5.68
#FFFFFF	3.70	1.00	21.00	21.00
#000000	5.68	21.00	1.00	1.00
##000000	5.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#458CF4

Deuteranopia (green-blind)

#247EEE

Tritanopia (blue-blind)

#0099AC

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #557ff0;
/* rgb */ color: rgb(85, 127, 240);
/* oklch */ color: oklch(62.4% 0.176 266.1);

Tailwind

colors: {
  custom: {
    50: '#94a3f6',
    500: '#557ff0',
    950: '#000000',
  },
}

SCSS

$custom: #557ff0;
$custom-light: #94a3f6;
$custom-dark: #000000;

JSON

{
  "hex": "#557ff0",
  "rgb": {
    "r": 85,
    "g": 127,
    "b": 240
  },
  "hsl": {
    "h": 223.742,
    "s": 83.784,
    "l": 63.725
  },
  "oklch": {
    "l": 0.62357,
    "c": 0.17585,
    "h": 266.1
  },
  "luminance": 0.23401
}

Semantic roles & 50–950 ramp

primary

#557FF0

secondary

#ECDDB5

accent

#A505E0

background

#F9FAFF

surface

#F2F3FE

border

#CCCDD6

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #557FF0

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

Preview Lab → · Contrast checker → · Palette generator →