#557CBC#557CBC

#557CBC is a mid, moderate blue. Relative luminance 0.200; OKLCH L 58.6% C 0.108 H 259.9°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#557CBC
RGB	rgb(85, 124, 188)
HSL	hsl(217, 43%, 54%)
HSV	hsv(217, 55%, 74%)
CMYK	cmyk(54.8%, 34%, 0%, 26.3%)
CIE-LAB	lab(51.81, 5.25, -37.76)
CIE-LCH	lch(51.81, 38.13, 277.91°)
OKLab	oklab(58.6% -0.019 -0.1066)
OKLCH	oklch(58.6% 0.108 259.9)
XYZ	xyz(20.0280, 19.9759, 50.3675)
Luminance	0.1998 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557CBC #BC9555

analogous

#55AFBC #557CBC #6155BC

triadic

#557CBC #BC557C #7CBC55

tetradic

#557CBC #BC55AF #BC9555 #55BC61

square

#557CBC #BC55AF #BC9555 #55BC61

split-complementary

#557CBC #BC6155 #AFBC55

monochromatic

#2B436C #3C5F98 #557CBC #819ECD #ADC0DF

Accessibility & contrast

On white

4.20

#557CBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.00

#557CBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557CBC

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

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

#6281BF

Deuteranopia (green-blind)

#5677BB

Tritanopia (blue-blind)

#178A93

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #557cbc;
/* rgb */ color: rgb(85, 124, 188);
/* oklch */ color: oklch(58.6% 0.108 259.9);

Tailwind

colors: {
  custom: {
    50: '#8ca1d0',
    500: '#557cbc',
    950: '#000000',
  },
}

SCSS

$custom: #557cbc;
$custom-light: #8ca1d0;
$custom-dark: #000000;

JSON

{
  "hex": "#557cbc",
  "rgb": {
    "r": 85,
    "g": 124,
    "b": 188
  },
  "hsl": {
    "h": 217.282,
    "s": 43.46,
    "l": 53.529
  },
  "oklch": {
    "l": 0.58602,
    "c": 0.10824,
    "h": 259.9
  },
  "luminance": 0.19977
}

Semantic roles & 50–950 ramp

primary

#557CBC

secondary

#CCBCA0

accent

#A355D3

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0D0E14

muted

#7D7E82

Preview Lab

Preview with #557CBC

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

Preview Lab → · Contrast checker → · Palette generator →