#557DE4#557DE4

#557DE4 is a mid, vivid blue. Relative luminance 0.222; OKLCH L 61.2% C 0.162 H 265.8°. Best body text is #000000 at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#557DE4
RGB	rgb(85, 125, 228)
HSL	hsl(223, 73%, 61%)
HSV	hsv(223, 63%, 89%)
CMYK	cmyk(62.7%, 45.2%, 0%, 10.6%)
CIE-LAB	lab(54.24, 17.95, -56.58)
CIE-LCH	lch(54.24, 59.36, 287.60°)
OKLab	oklab(61.18% -0.0117 -0.1616)
OKLCH	oklch(61.18% 0.162 265.8)
XYZ	xyz(25.0787, 22.1977, 76.3467)
Luminance	0.2220 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557DE4 #E4BC55

analogous

#55C5E4 #557DE4 #7555E4

triadic

#557DE4 #E4557D #7DE455

tetradic

#557DE4 #E455C5 #E4BC55 #55E475

square

#557DE4 #E455C5 #E4BC55 #55E475

split-complementary

#557DE4 #E47555 #C5E455

monochromatic

#1A41A4 #2356D9 #557DE4 #8AA5EC #BFCEF5

Accessibility & contrast

On white

3.86

#557DE4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.44

#557DE4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557DE4

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557DE4	#FFFFFF	#000000	##000000
##557DE4	1.00	3.86	5.44	5.44
#FFFFFF	3.86	1.00	21.00	21.00
#000000	5.44	21.00	1.00	1.00
##000000	5.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B89E8

Deuteranopia (green-blind)

#337CE2

Tritanopia (blue-blind)

#0094A5

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #557de4;
/* rgb */ color: rgb(85, 125, 228);
/* oklch */ color: oklch(61.2% 0.162 265.8);

Tailwind

colors: {
  custom: {
    50: '#92a2ed',
    500: '#557de4',
    950: '#000000',
  },
}

SCSS

$custom: #557de4;
$custom-light: #92a2ed;
$custom-dark: #000000;

JSON

{
  "hex": "#557de4",
  "rgb": {
    "r": 85,
    "g": 125,
    "b": 228
  },
  "hsl": {
    "h": 223.217,
    "s": 72.589,
    "l": 61.373
  },
  "oklch": {
    "l": 0.61175,
    "c": 0.16208,
    "h": 265.8
  },
  "luminance": 0.222
}

Semantic roles & 50–950 ramp

primary

#557DE4

secondary

#E5D6B0

accent

#9E11D5

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #557DE4

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

Preview Lab → · Contrast checker → · Palette generator →