#557AC8#557AC8

#557AC8 is a mid, vivid blue. Relative luminance 0.200; OKLCH L 58.8% C 0.127 H 263.8°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#557AC8
RGB	rgb(85, 122, 200)
HSL	hsl(221, 51%, 56%)
HSV	hsv(221, 58%, 78%)
CMYK	cmyk(57.5%, 39%, 0%, 21.6%)
CIE-LAB	lab(51.86, 10.39, -44.55)
CIE-LCH	lch(51.86, 45.75, 283.13°)
OKLab	oklab(58.84% -0.0138 -0.1264)
OKLCH	oklch(58.84% 0.127 263.8)
XYZ	xyz(21.1276, 20.0188, 57.3830)
Luminance	0.2002 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557AC8 #C8A355

analogous

#55B3C8 #557AC8 #6955C8

triadic

#557AC8 #C8557A #7AC855

tetradic

#557AC8 #C855B3 #C8A355 #55C869

square

#557AC8 #C855B3 #C8A355 #55C869

split-complementary

#557AC8 #C86955 #B3C855

monochromatic

#28427B #375CA9 #557AC8 #839ED7 #B1C2E6

Accessibility & contrast

On white

4.20

#557AC8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.00

#557AC8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557AC8

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557AC8	#FFFFFF	#000000	##000000
##557AC8	1.00	4.20	5.00	5.00
#FFFFFF	4.20	1.00	21.00	21.00
#000000	5.00	21.00	1.00	1.00
##000000	5.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5981CB

Deuteranopia (green-blind)

#4A77C6

Tritanopia (blue-blind)

#008B97

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #557ac8;
/* rgb */ color: rgb(85, 122, 200);
/* oklch */ color: oklch(58.8% 0.127 263.8);

Tailwind

colors: {
  custom: {
    50: '#8da0d9',
    500: '#557ac8',
    950: '#000000',
  },
}

SCSS

$custom: #557ac8;
$custom-light: #8da0d9;
$custom-dark: #000000;

JSON

{
  "hex": "#557ac8",
  "rgb": {
    "r": 85,
    "g": 122,
    "b": 200
  },
  "hsl": {
    "h": 220.696,
    "s": 51.111,
    "l": 55.882
  },
  "oklch": {
    "l": 0.58839,
    "c": 0.12714,
    "h": 263.8
  },
  "luminance": 0.2002
}

Semantic roles & 50–950 ramp

primary

#557AC8

secondary

#D4C5A5

accent

#AD4DDB

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0E14

muted

#7E7E83

Preview Lab

Preview with #557AC8

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

Preview Lab → · Contrast checker → · Palette generator →