#557CE3#557CE3

#557CE3 is a mid, vivid blue. Relative luminance 0.219; OKLCH L 60.9% C 0.162 H 266.1°. Best body text is #000000 at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#557CE3
RGB	rgb(85, 124, 227)
HSL	hsl(224, 72%, 61%)
HSV	hsv(224, 63%, 89%)
CMYK	cmyk(62.6%, 45.4%, 0%, 11%)
CIE-LAB	lab(53.91, 18.23, -56.55)
CIE-LCH	lch(53.91, 59.41, 287.87°)
OKLab	oklab(60.91% -0.0109 -0.1615)
OKLCH	oklch(60.91% 0.162 266.1)
XYZ	xyz(24.8143, 21.8904, 75.5757)
Luminance	0.2189 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557CE3 #E3BC55

analogous

#55C3E3 #557CE3 #7555E3

triadic

#557CE3 #E3557C #7CE355

tetradic

#557CE3 #E355C3 #E3BC55 #55E375

square

#557CE3 #E355C3 #E3BC55 #55E375

split-complementary

#557CE3 #E37555 #C3E355

monochromatic

#1B40A3 #2355D7 #557CE3 #8AA4EC #BECDF4

Accessibility & contrast

On white

3.90

#557CE3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.38

#557CE3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557CE3

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557CE3	#FFFFFF	#000000	##000000
##557CE3	1.00	3.90	5.38	5.38
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.38	21.00	1.00	1.00
##000000	5.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A88E7

Deuteranopia (green-blind)

#327BE1

Tritanopia (blue-blind)

#0093A4

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #557ce3;
/* rgb */ color: rgb(85, 124, 227);
/* oklch */ color: oklch(60.9% 0.162 266.1);

Tailwind

colors: {
  custom: {
    50: '#91a1ec',
    500: '#557ce3',
    950: '#000000',
  },
}

SCSS

$custom: #557ce3;
$custom-light: #91a1ec;
$custom-dark: #000000;

JSON

{
  "hex": "#557ce3",
  "rgb": {
    "r": 85,
    "g": 124,
    "b": 227
  },
  "hsl": {
    "h": 223.521,
    "s": 71.717,
    "l": 61.176
  },
  "oklch": {
    "l": 0.60907,
    "c": 0.16192,
    "h": 266.1
  },
  "luminance": 0.21893
}

Semantic roles & 50–950 ramp

primary

#557CE3

secondary

#E5D6AF

accent

#9E12D4

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #557CE3

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

Preview Lab → · Contrast checker → · Palette generator →