#557FEB#557FEB

#557FEB is a light, vivid blue. Relative luminance 0.231; OKLCH L 62.0% C 0.169 H 265.7°. Best body text is #000000 at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#557FEB
RGB	rgb(85, 127, 235)
HSL	hsl(223, 79%, 63%)
HSV	hsv(223, 64%, 92%)
CMYK	cmyk(63.8%, 46%, 0%, 7.8%)
CIE-LAB	lab(55.18, 19.11, -58.98)
CIE-LCH	lch(55.18, 62.00, 287.95°)
OKLab	oklab(62.03% -0.0126 -0.1687)
OKLCH	oklch(62.03% 0.169 265.7)
XYZ	xyz(26.3259, 23.1058, 81.6537)
Luminance	0.2311 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557FEB #EBC155

analogous

#55CAEB #557FEB #7655EB

triadic

#557FEB #EB557F #7FEB55

tetradic

#557FEB #EB55CA #EBC155 #55EB76

square

#557FEB #EB55CA #EBC155 #55EB76

split-complementary

#557FEB #EB7655 #CAEB55

monochromatic

#1540B1 #1E56E5 #557FEB #8CA8F1 #C3D1F8

Accessibility & contrast

On white

3.74

#557FEB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.62

#557FEB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557FEB

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557FEB	#FFFFFF	#000000	##000000
##557FEB	1.00	3.74	5.62	5.62
#FFFFFF	3.74	1.00	21.00	21.00
#000000	5.62	21.00	1.00	1.00
##000000	5.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#498BEF

Deuteranopia (green-blind)

#2D7EE9

Tritanopia (blue-blind)

#0098AA

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #557feb;
/* rgb */ color: rgb(85, 127, 235);
/* oklch */ color: oklch(62.0% 0.169 265.7);

Tailwind

colors: {
  custom: {
    50: '#93a3f2',
    500: '#557feb',
    950: '#000000',
  },
}

SCSS

$custom: #557feb;
$custom-light: #93a3f2;
$custom-dark: #000000;

JSON

{
  "hex": "#557feb",
  "rgb": {
    "r": 85,
    "g": 127,
    "b": 235
  },
  "hsl": {
    "h": 223.2,
    "s": 78.947,
    "l": 62.745
  },
  "oklch": {
    "l": 0.62031,
    "c": 0.16914,
    "h": 265.7
  },
  "luminance": 0.23108
}

Semantic roles & 50–950 ramp

primary

#557FEB

secondary

#E9DAB3

accent

#A10ADB

background

#F9FAFE

surface

#F2F3FD

border

#CCCDD5

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #557FEB

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

Preview Lab → · Contrast checker → · Palette generator →