#557FC0#557FC0

#557FC0 is a mid, moderate blue. Relative luminance 0.209; OKLCH L 59.5% C 0.111 H 258.8°. Best body text is #000000 at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#557FC0
RGB	rgb(85, 127, 192)
HSL	hsl(216, 46%, 54%)
HSV	hsv(216, 56%, 75%)
CMYK	cmyk(55.7%, 33.9%, 0%, 24.7%)
CIE-LAB	lab(52.86, 4.74, -38.41)
CIE-LCH	lch(52.86, 38.70, 277.04°)
OKLab	oklab(59.48% -0.0214 -0.1084)
OKLCH	oklch(59.48% 0.111 258.8)
XYZ	xyz(20.8468, 20.9141, 52.7972)
Luminance	0.2092 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557FC0 #C09655

analogous

#55B4C0 #557FC0 #6155C0

triadic

#557FC0 #C0557F #7FC055

tetradic

#557FC0 #C055B4 #C09655 #55C061

square

#557FC0 #C055B4 #C09655 #55C061

split-complementary

#557FC0 #C06155 #B4C055

monochromatic

#2A4671 #3A619D #557FC0 #82A1D1 #AEC2E1

Accessibility & contrast

On white

4.05

#557FC0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.18

#557FC0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557FC0

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557FC0	#FFFFFF	#000000	##000000
##557FC0	1.00	4.05	5.18	5.18
#FFFFFF	4.05	1.00	21.00	21.00
#000000	5.18	21.00	1.00	1.00
##000000	5.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6584C3

Deuteranopia (green-blind)

#577ABF

Tritanopia (blue-blind)

#0C8D97

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #557fc0;
/* rgb */ color: rgb(85, 127, 192);
/* oklch */ color: oklch(59.5% 0.111 258.8);

Tailwind

colors: {
  custom: {
    50: '#8ca3d3',
    500: '#557fc0',
    950: '#000000',
  },
}

SCSS

$custom: #557fc0;
$custom-light: #8ca3d3;
$custom-dark: #000000;

JSON

{
  "hex": "#557fc0",
  "rgb": {
    "r": 85,
    "g": 127,
    "b": 192
  },
  "hsl": {
    "h": 216.449,
    "s": 45.923,
    "l": 54.314
  },
  "oklch": {
    "l": 0.5948,
    "c": 0.11051,
    "h": 258.8
  },
  "luminance": 0.20916
}

Semantic roles & 50–950 ramp

primary

#557FC0

secondary

#CFBDA2

accent

#A252D6

background

#F9FAFD

surface

#F1F3FA

border

#CBCDD3

text

#0D0F14

muted

#7E7F83

Preview Lab

Preview with #557FC0

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

Preview Lab → · Contrast checker → · Palette generator →