#557DC4#557DC4

#557DC4 is a mid, moderate blue. Relative luminance 0.206; OKLCH L 59.3% C 0.118 H 261.2°. Best body text is #000000 at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#557DC4
RGB	rgb(85, 125, 196)
HSL	hsl(218, 48%, 55%)
HSV	hsv(218, 57%, 77%)
CMYK	cmyk(56.6%, 36.2%, 0%, 23.1%)
CIE-LAB	lab(52.49, 7.25, -41.27)
CIE-LCH	lch(52.49, 41.90, 279.97°)
OKLab	oklab(59.26% -0.0181 -0.1168)
OKLCH	oklch(59.26% 0.118 261.2)
XYZ	xyz(21.0403, 20.5824, 55.0779)
Luminance	0.2058 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557DC4 #C49C55

analogous

#55B5C4 #557DC4 #6455C4

triadic

#557DC4 #C4557D #7DC455

tetradic

#557DC4 #C455B5 #C49C55 #55C464

square

#557DC4 #C455B5 #C49C55 #55C464

split-complementary

#557DC4 #C46455 #B5C455

monochromatic

#294576 #395FA3 #557DC4 #82A0D4 #B0C2E4

Accessibility & contrast

On white

4.10

#557DC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.12

#557DC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557DC4

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557DC4	#FFFFFF	#000000	##000000
##557DC4	1.00	4.10	5.12	5.12
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.12	21.00	1.00	1.00
##000000	5.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6083C7

Deuteranopia (green-blind)

#5279C2

Tritanopia (blue-blind)

#008D97

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #557dc4;
/* rgb */ color: rgb(85, 125, 196);
/* oklch */ color: oklch(59.3% 0.118 261.2);

Tailwind

colors: {
  custom: {
    50: '#8da2d6',
    500: '#557dc4',
    950: '#000000',
  },
}

SCSS

$custom: #557dc4;
$custom-light: #8da2d6;
$custom-dark: #000000;

JSON

{
  "hex": "#557dc4",
  "rgb": {
    "r": 85,
    "g": 125,
    "b": 196
  },
  "hsl": {
    "h": 218.378,
    "s": 48.472,
    "l": 55.098
  },
  "oklch": {
    "l": 0.5926,
    "c": 0.11817,
    "h": 261.2
  },
  "luminance": 0.20584
}

Semantic roles & 50–950 ramp

primary

#557DC4

secondary

#D2C1A3

accent

#A750D8

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0F14

muted

#7E7E83

Preview Lab

Preview with #557DC4

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

Preview Lab → · Contrast checker → · Palette generator →