#557EF0#557EF0

#557EF0 is a light, vivid blue. Relative luminance 0.231; OKLCH L 62.2% C 0.177 H 266.4°. Best body text is #000000 at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#557EF0
RGB	rgb(85, 126, 240)
HSL	hsl(224, 84%, 64%)
HSV	hsv(224, 65%, 94%)
CMYK	cmyk(64.6%, 47.5%, 0%, 5.9%)
CIE-LAB	lab(55.22, 21.42, -61.70)
CIE-LCH	lch(55.22, 65.32, 289.15°)
OKLab	oklab(62.16% -0.011 -0.1767)
OKLCH	oklch(62.16% 0.177 266.4)
XYZ	xyz(26.9299, 23.1418, 85.4688)
Luminance	0.2314 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557EF0 #F0C755

analogous

#55CBF0 #557EF0 #7955F0

triadic

#557EF0 #F0557E #7EF055

tetradic

#557EF0 #F055CB #F0C755 #55F079

square

#557EF0 #F055CB #F0C755 #55F079

split-complementary

#557EF0 #F07955 #CBF055

monochromatic

#103DBA #1D53EB #557EF0 #8DA9F5 #C5D3FA

Accessibility & contrast

On white

3.73

#557EF0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.63

#557EF0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557EF0

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557EF0	#FFFFFF	#000000	##000000
##557EF0	1.00	3.73	5.63	5.63
#FFFFFF	3.73	1.00	21.00	21.00
#000000	5.63	21.00	1.00	1.00
##000000	5.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#428CF4

Deuteranopia (green-blind)

#207EEE

Tritanopia (blue-blind)

#0098AB

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #557ef0;
/* rgb */ color: rgb(85, 126, 240);
/* oklch */ color: oklch(62.2% 0.177 266.4);

Tailwind

colors: {
  custom: {
    50: '#94a2f6',
    500: '#557ef0',
    950: '#000000',
  },
}

SCSS

$custom: #557ef0;
$custom-light: #94a2f6;
$custom-dark: #000000;

JSON

{
  "hex": "#557ef0",
  "rgb": {
    "r": 85,
    "g": 126,
    "b": 240
  },
  "hsl": {
    "h": 224.129,
    "s": 83.784,
    "l": 63.725
  },
  "oklch": {
    "l": 0.62156,
    "c": 0.17703,
    "h": 266.4
  },
  "luminance": 0.23144
}

Semantic roles & 50–950 ramp

primary

#557EF0

secondary

#ECDDB5

accent

#A605E0

background

#F9F9FF

surface

#F2F2FE

border

#CCCCD6

text

#0E0F17

muted

#7E7E85

Preview Lab

Preview with #557EF0

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

Preview Lab → · Contrast checker → · Palette generator →