#557BF2#557BF2

#557BF2 is a mid, vivid blue. Relative luminance 0.225; OKLCH L 61.7% C 0.183 H 267.5°. Best body text is #000000 at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#557BF2
RGB	rgb(85, 123, 242)
HSL	hsl(225, 86%, 64%)
HSV	hsv(225, 65%, 95%)
CMYK	cmyk(64.9%, 49.2%, 0%, 5.1%)
CIE-LAB	lab(54.56, 23.94, -63.87)
CIE-LCH	lch(54.56, 68.21, 290.55°)
OKLab	oklab(61.69% -0.008 -0.1831)
OKLCH	oklch(61.69% 0.183 267.5)
XYZ	xyz(26.8508, 22.5055, 86.9162)
Luminance	0.2251 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557BF2 #F2CC55

analogous

#55C9F2 #557BF2 #7E55F2

triadic

#557BF2 #F2557B #7BF255

tetradic

#557BF2 #F255C9 #F2CC55 #55F27E

square

#557BF2 #F255C9 #F2CC55 #55F27E

split-complementary

#557BF2 #F27E55 #C9F255

monochromatic

#0F39BE #1C4FEE #557BF2 #8EA7F6 #C7D3FB

Accessibility & contrast

On white

3.82

#557BF2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.50

#557BF2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557BF2

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557BF2	#FFFFFF	#000000	##000000
##557BF2	1.00	3.82	5.50	5.50
#FFFFFF	3.82	1.00	21.00	21.00
#000000	5.50	21.00	1.00	1.00
##000000	5.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#398AF6

Deuteranopia (green-blind)

#057CF0

Tritanopia (blue-blind)

#0097AB

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #557bf2;
/* rgb */ color: rgb(85, 123, 242);
/* oklch */ color: oklch(61.7% 0.183 267.5);

Tailwind

colors: {
  custom: {
    50: '#94a0f7',
    500: '#557bf2',
    950: '#000000',
  },
}

SCSS

$custom: #557bf2;
$custom-light: #94a0f7;
$custom-dark: #000000;

JSON

{
  "hex": "#557bf2",
  "rgb": {
    "r": 85,
    "g": 123,
    "b": 242
  },
  "hsl": {
    "h": 225.478,
    "s": 85.792,
    "l": 64.118
  },
  "oklch": {
    "l": 0.61694,
    "c": 0.1833,
    "h": 267.5
  },
  "luminance": 0.22508
}

Semantic roles & 50–950 ramp

primary

#557BF2

secondary

#EDE0B6

accent

#AC03E2

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #557BF2

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

Preview Lab → · Contrast checker → · Palette generator →