#557CBF#557CBF

#557CBF is a mid, moderate blue. Relative luminance 0.201; OKLCH L 58.8% C 0.112 H 260.7°. Best body text is #000000 at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#557CBF
RGB	rgb(85, 124, 191)
HSL	hsl(218, 45%, 54%)
HSV	hsv(218, 55%, 75%)
CMYK	cmyk(55.5%, 35.1%, 0%, 25.1%)
CIE-LAB	lab(51.96, 6.22, -39.25)
CIE-LCH	lch(51.96, 39.74, 279.01°)
OKLab	oklab(58.77% -0.0182 -0.1109)
OKLCH	oklch(58.77% 0.112 260.7)
XYZ	xyz(20.3547, 20.1066, 52.0884)
Luminance	0.2011 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557CBF #BF9855

analogous

#55B1BF #557CBF #6355BF

triadic

#557CBF #BF557C #7CBF55

tetradic

#557CBF #BF55B1 #BF9855 #55BF63

square

#557CBF #BF55B1 #BF9855 #55BF63

split-complementary

#557CBF #BF6355 #B1BF55

monochromatic

#2A4470 #3B5F9C #557CBF #819ED0 #AEC1E0

Accessibility & contrast

On white

4.18

#557CBF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.02

#557CBF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557CBF

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557CBF	#FFFFFF	#000000	##000000
##557CBF	1.00	4.18	5.02	5.02
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.02	21.00	1.00	1.00
##000000	5.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6181C2

Deuteranopia (green-blind)

#5477BE

Tritanopia (blue-blind)

#118B94

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #557cbf;
/* rgb */ color: rgb(85, 124, 191);
/* oklch */ color: oklch(58.8% 0.112 260.7);

Tailwind

colors: {
  custom: {
    50: '#8ca1d2',
    500: '#557cbf',
    950: '#000000',
  },
}

SCSS

$custom: #557cbf;
$custom-light: #8ca1d2;
$custom-dark: #000000;

JSON

{
  "hex": "#557cbf",
  "rgb": {
    "r": 85,
    "g": 124,
    "b": 191
  },
  "hsl": {
    "h": 217.925,
    "s": 45.299,
    "l": 54.118
  },
  "oklch": {
    "l": 0.58765,
    "c": 0.11237,
    "h": 260.7
  },
  "luminance": 0.20108
}

Semantic roles & 50–950 ramp

primary

#557CBF

secondary

#CEBEA1

accent

#A553D5

background

#F9F9FC

surface

#F1F2F9

border

#CBCCD2

text

#0D0E14

muted

#7E7E82

Preview Lab

Preview with #557CBF

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

Preview Lab → · Contrast checker → · Palette generator →