#557ABC#557ABC

#557ABC is a mid, moderate blue. Relative luminance 0.195; OKLCH L 58.2% C 0.110 H 261.3°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#557ABC
RGB	rgb(85, 122, 188)
HSL	hsl(218, 43%, 54%)
HSV	hsv(218, 55%, 74%)
CMYK	cmyk(54.8%, 35.1%, 0%, 26.3%)
CIE-LAB	lab(51.24, 6.46, -38.66)
CIE-LCH	lch(51.24, 39.19, 279.48°)
OKLab	oklab(58.16% -0.0167 -0.1092)
OKLCH	oklch(58.16% 0.11 261.3)
XYZ	xyz(19.7799, 19.4797, 50.2848)
Luminance	0.1948 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557ABC #BC9755

analogous

#55ADBC #557ABC #6355BC

triadic

#557ABC #BC557A #7ABC55

tetradic

#557ABC #BC55AD #BC9755 #55BC63

square

#557ABC #BC55AD #BC9755 #55BC63

split-complementary

#557ABC #BC6355 #ADBC55

monochromatic

#2B426C #3C5D98 #557ABC #819CCD #ADBFDF

Accessibility & contrast

On white

4.29

#557ABC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#557ABC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557ABC

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557ABC	#FFFFFF	#000000	##000000
##557ABC	1.00	4.29	4.90	4.90
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F7FBF

Deuteranopia (green-blind)

#5376BB

Tritanopia (blue-blind)

#188992

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #557abc;
/* rgb */ color: rgb(85, 122, 188);
/* oklch */ color: oklch(58.2% 0.110 261.3);

Tailwind

colors: {
  custom: {
    50: '#8ca0d0',
    500: '#557abc',
    950: '#000000',
  },
}

SCSS

$custom: #557abc;
$custom-light: #8ca0d0;
$custom-dark: #000000;

JSON

{
  "hex": "#557abc",
  "rgb": {
    "r": 85,
    "g": 122,
    "b": 188
  },
  "hsl": {
    "h": 218.447,
    "s": 43.46,
    "l": 53.529
  },
  "oklch": {
    "l": 0.58161,
    "c": 0.11043,
    "h": 261.3
  },
  "luminance": 0.19481
}

Semantic roles & 50–950 ramp

primary

#557ABC

secondary

#CCBDA0

accent

#A655D3

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0D0E14

muted

#7D7E82

Preview Lab

Preview with #557ABC

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

Preview Lab → · Contrast checker → · Palette generator →