#557BF5#557BF5

#557BF5 is a mid, vivid blue. Relative luminance 0.227; OKLCH L 61.9% C 0.187 H 267.6°. Best body text is #000000 at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#557BF5
RGB	rgb(85, 123, 245)
HSL	hsl(226, 89%, 65%)
HSV	hsv(226, 65%, 96%)
CMYK	cmyk(65.3%, 49.8%, 0%, 3.9%)
CIE-LAB	lab(54.75, 24.97, -65.23)
CIE-LCH	lch(54.75, 69.85, 290.94°)
OKLab	oklab(61.9% -0.0077 -0.1871)
OKLCH	oklch(61.9% 0.187 267.6)
XYZ	xyz(27.3050, 22.6872, 89.3086)
Luminance	0.2269 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557BF5 #F5CF55

analogous

#55CBF5 #557BF5 #7F55F5

triadic

#557BF5 #F5557B #7BF555

tetradic

#557BF5 #F555CB #F5CF55 #55F57F

square

#557BF5 #F555CB #F5CF55 #55F57F

split-complementary

#557BF5 #F57F55 #CBF555

monochromatic

#0C37C4 #1B4EF2 #557BF5 #8FA8F8 #C9D5FC

Accessibility & contrast

On white

3.79

#557BF5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.54

#557BF5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557BF5

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557BF5	#FFFFFF	#000000	##000000
##557BF5	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)

#358BF9

Deuteranopia (green-blind)

#007CF3

Tritanopia (blue-blind)

#0098AC

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #557bf5;
/* rgb */ color: rgb(85, 123, 245);
/* oklch */ color: oklch(61.9% 0.187 267.6);

Tailwind

colors: {
  custom: {
    50: '#95a0f9',
    500: '#557bf5',
    950: '#000000',
  },
}

SCSS

$custom: #557bf5;
$custom-light: #95a0f9;
$custom-dark: #000000;

JSON

{
  "hex": "#557bf5",
  "rgb": {
    "r": 85,
    "g": 123,
    "b": 245
  },
  "hsl": {
    "h": 225.75,
    "s": 88.889,
    "l": 64.706
  },
  "oklch": {
    "l": 0.61899,
    "c": 0.18729,
    "h": 267.6
  },
  "luminance": 0.2269
}

Semantic roles & 50–950 ramp

primary

#557BF5

secondary

#EEE1B7

accent

#AF00E6

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0F0E17

muted

#7E7E85

Preview Lab

Preview with #557BF5

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

Preview Lab → · Contrast checker → · Palette generator →