#557DD4#557DD4

#557DD4 is a mid, vivid blue. Relative luminance 0.214; OKLCH L 60.2% C 0.140 H 264.0°. Best body text is #000000 at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#557DD4
RGB	rgb(85, 125, 212)
HSL	hsl(221, 60%, 58%)
HSV	hsv(221, 60%, 83%)
CMYK	cmyk(59.9%, 41%, 0%, 16.9%)
CIE-LAB	lab(53.33, 12.56, -49.03)
CIE-LCH	lch(53.33, 50.61, 284.37°)
OKLab	oklab(60.19% -0.0146 -0.1395)
OKLCH	oklch(60.19% 0.14 264)
XYZ	xyz(22.9595, 21.3500, 65.1856)
Luminance	0.2135 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557DD4 #D4AC55

analogous

#55BDD4 #557DD4 #6C55D4

triadic

#557DD4 #D4557D #7DD455

tetradic

#557DD4 #D455BD #D4AC55 #55D46C

square

#557DD4 #D455BD #D4AC55 #55D46C

split-complementary

#557DD4 #D46C55 #BDD455

monochromatic

#23448B #305CBC #557DD4 #86A2E0 #B7C8ED

Accessibility & contrast

On white

3.98

#557DD4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.27

#557DD4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557DD4

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557DD4	#FFFFFF	#000000	##000000
##557DD4	1.00	3.98	5.27	5.27
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.27	21.00	1.00	1.00
##000000	5.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5786D7

Deuteranopia (green-blind)

#457AD2

Tritanopia (blue-blind)

#00909E

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #557dd4;
/* rgb */ color: rgb(85, 125, 212);
/* oklch */ color: oklch(60.2% 0.140 264.0);

Tailwind

colors: {
  custom: {
    50: '#8fa2e2',
    500: '#557dd4',
    950: '#000000',
  },
}

SCSS

$custom: #557dd4;
$custom-light: #8fa2e2;
$custom-dark: #000000;

JSON

{
  "hex": "#557dd4",
  "rgb": {
    "r": 85,
    "g": 125,
    "b": 212
  },
  "hsl": {
    "h": 221.102,
    "s": 59.624,
    "l": 58.235
  },
  "oklch": {
    "l": 0.60185,
    "c": 0.14023,
    "h": 264
  },
  "luminance": 0.21352
}

Semantic roles & 50–950 ramp

primary

#557DD4

secondary

#DCCCA9

accent

#B145E3

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #557DD4

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

Preview Lab → · Contrast checker → · Palette generator →