#557FFF#557FFF

#557FFF is a light, vivid blue. Relative luminance 0.243; OKLCH L 63.4% C 0.196 H 267.0°. Best body text is #000000 at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#557FFF
RGB	rgb(85, 127, 255)
HSL	hsl(225, 100%, 67%)
HSV	hsv(225, 67%, 100%)
CMYK	cmyk(66.7%, 50.2%, 0%, 0%)
CIE-LAB	lab(56.41, 25.94, -68.08)
CIE-LCH	lch(56.41, 72.85, 290.86°)
OKLab	oklab(63.37% -0.0102 -0.1954)
OKLCH	oklch(63.37% 0.196 267)
XYZ	xyz(29.3794, 24.3272, 97.7357)
Luminance	0.2433 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557FFF #FFD555

analogous

#55D4FF #557FFF #8055FF

triadic

#557FFF #FF557F #7FFF55

tetradic

#557FFF #FF55D4 #FFD555 #55FF80

square

#557FFF #FF55D4 #FFD555 #55FF80

split-complementary

#557FFF #FF8055 #D4FF55

monochromatic

#0036DA #1851FF #557FFF #92ADFF #CFDBFF

Accessibility & contrast

On white

3.58

#557FFF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.87

#557FFF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557FFF

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557FFF	#FFFFFF	#000000	##000000
##557FFF	1.00	3.58	5.87	5.87
#FFFFFF	3.58	1.00	21.00	21.00
#000000	5.87	21.00	1.00	1.00
##000000	5.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#328FFF

Deuteranopia (green-blind)

#0080FC

Tritanopia (blue-blind)

#009DB3

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #557fff;
/* rgb */ color: rgb(85, 127, 255);
/* oklch */ color: oklch(63.4% 0.196 267.0);

Tailwind

colors: {
  custom: {
    50: '#96a3ff',
    500: '#557fff',
    950: '#000000',
  },
}

SCSS

$custom: #557fff;
$custom-light: #96a3ff;
$custom-dark: #000000;

JSON

{
  "hex": "#557fff",
  "rgb": {
    "r": 85,
    "g": 127,
    "b": 255
  },
  "hsl": {
    "h": 225.176,
    "s": 100,
    "l": 66.667
  },
  "oklch": {
    "l": 0.63366,
    "c": 0.1957,
    "h": 267
  },
  "luminance": 0.2433
}

Semantic roles & 50–950 ramp

primary

#557FFF

secondary

#F3E6BD

accent

#AD00E6

background

#FAFAFF

surface

#F3F3FF

border

#CDCDD7

text

#0F0F18

muted

#7F7F86

Preview Lab

Preview with #557FFF

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

Preview Lab → · Contrast checker → · Palette generator →