#557BC0#557BC0

#557BC0 is a mid, moderate blue. Relative luminance 0.199; OKLCH L 58.6% C 0.115 H 261.6°. Best body text is #000000 at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#557BC0
RGB	rgb(85, 123, 192)
HSL	hsl(219, 46%, 54%)
HSV	hsv(219, 56%, 75%)
CMYK	cmyk(55.7%, 35.9%, 0%, 24.7%)
CIE-LAB	lab(51.73, 7.15, -40.19)
CIE-LCH	lch(51.73, 40.82, 280.09°)
OKLab	oklab(58.6% -0.0168 -0.1136)
OKLCH	oklch(58.6% 0.115 261.6)
XYZ	xyz(20.3404, 19.9014, 52.6284)
Luminance	0.1990 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557BC0 #C09A55

analogous

#55B0C0 #557BC0 #6555C0

triadic

#557BC0 #C0557B #7BC055

tetradic

#557BC0 #C055B0 #C09A55 #55C065

square

#557BC0 #C055B0 #C09A55 #55C065

split-complementary

#557BC0 #C06555 #B0C055

monochromatic

#2A4371 #3A5E9D #557BC0 #829ED1 #AEC0E1

Accessibility & contrast

On white

4.22

#557BC0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.98

#557BC0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557BC0

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557BC0	#FFFFFF	#000000	##000000
##557BC0	1.00	4.22	4.98	4.98
#FFFFFF	4.22	1.00	21.00	21.00
#000000	4.98	21.00	1.00	1.00
##000000	4.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F81C3

Deuteranopia (green-blind)

#5277BF

Tritanopia (blue-blind)

#0F8A94

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #557bc0;
/* rgb */ color: rgb(85, 123, 192);
/* oklch */ color: oklch(58.6% 0.115 261.6);

Tailwind

colors: {
  custom: {
    50: '#8ca0d3',
    500: '#557bc0',
    950: '#000000',
  },
}

SCSS

$custom: #557bc0;
$custom-light: #8ca0d3;
$custom-dark: #000000;

JSON

{
  "hex": "#557bc0",
  "rgb": {
    "r": 85,
    "g": 123,
    "b": 192
  },
  "hsl": {
    "h": 218.692,
    "s": 45.923,
    "l": 54.314
  },
  "oklch": {
    "l": 0.58601,
    "c": 0.11488,
    "h": 261.6
  },
  "luminance": 0.19903
}

Semantic roles & 50–950 ramp

primary

#557BC0

secondary

#CFBFA2

accent

#A752D6

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0E14

muted

#7E7E83

Preview Lab

Preview with #557BC0

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

Preview Lab → · Contrast checker → · Palette generator →