#557FEC#557FEC

#557FEC is a light, vivid blue. Relative luminance 0.232; OKLCH L 62.1% C 0.170 H 265.8°. Best body text is #000000 at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#557FEC
RGB	rgb(85, 127, 236)
HSL	hsl(223, 80%, 63%)
HSV	hsv(223, 64%, 93%)
CMYK	cmyk(64%, 46.2%, 0%, 7.5%)
CIE-LAB	lab(55.24, 19.45, -59.44)
CIE-LCH	lch(55.24, 62.54, 288.12°)
OKLab	oklab(62.1% -0.0125 -0.17)
OKLCH	oklch(62.1% 0.17 265.8)
XYZ	xyz(26.4708, 23.1637, 82.4167)
Luminance	0.2317 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557FEC #ECC255

analogous

#55CBEC #557FEC #7655EC

triadic

#557FEC #EC557F #7FEC55

tetradic

#557FEC #EC55CB #ECC255 #55EC76

square

#557FEC #EC55CB #ECC255 #55EC76

split-complementary

#557FEC #EC7655 #CBEC55

monochromatic

#1440B3 #1E56E6 #557FEC #8CA8F2 #C3D2F8

Accessibility & contrast

On white

3.73

#557FEC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.63

#557FEC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557FEC

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

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

#488CF0

Deuteranopia (green-blind)

#2C7EEA

Tritanopia (blue-blind)

#0098AA

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #557fec;
/* rgb */ color: rgb(85, 127, 236);
/* oklch */ color: oklch(62.1% 0.170 265.8);

Tailwind

colors: {
  custom: {
    50: '#93a3f3',
    500: '#557fec',
    950: '#000000',
  },
}

SCSS

$custom: #557fec;
$custom-light: #93a3f3;
$custom-dark: #000000;

JSON

{
  "hex": "#557fec",
  "rgb": {
    "r": 85,
    "g": 127,
    "b": 236
  },
  "hsl": {
    "h": 223.311,
    "s": 79.894,
    "l": 62.941
  },
  "oklch": {
    "l": 0.62096,
    "c": 0.17049,
    "h": 265.8
  },
  "luminance": 0.23166
}

Semantic roles & 50–950 ramp

primary

#557FEC

secondary

#EADAB3

accent

#A209DC

background

#F9FAFE

surface

#F2F3FD

border

#CCCDD5

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #557FEC

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

Preview Lab → · Contrast checker → · Palette generator →