#557EE5#557EE5

#557EE5 is a mid, vivid blue. Relative luminance 0.225; OKLCH L 61.4% C 0.162 H 265.6°. Best body text is #000000 at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#557EE5
RGB	rgb(85, 126, 229)
HSL	hsl(223, 73%, 62%)
HSV	hsv(223, 63%, 90%)
CMYK	cmyk(62.9%, 45%, 0%, 10.2%)
CIE-LAB	lab(54.56, 17.68, -56.62)
CIE-LCH	lch(54.56, 59.32, 287.34°)
OKLab	oklab(61.44% -0.0126 -0.1617)
OKLCH	oklch(61.44% 0.162 265.6)
XYZ	xyz(25.3451, 22.5079, 77.1223)
Luminance	0.2251 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557EE5 #E5BC55

analogous

#55C6E5 #557EE5 #7455E5

triadic

#557EE5 #E5557E #7EE555

tetradic

#557EE5 #E555C6 #E5BC55 #55E574

square

#557EE5 #E555C6 #E5BC55 #55E574

split-complementary

#557EE5 #E57455 #C6E555

monochromatic

#1941A6 #2256DB #557EE5 #8AA6ED #BFCFF5

Accessibility & contrast

On white

3.82

#557EE5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.50

#557EE5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557EE5

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557EE5	#FFFFFF	#000000	##000000
##557EE5	1.00	3.82	5.50	5.50
#FFFFFF	3.82	1.00	21.00	21.00
#000000	5.50	21.00	1.00	1.00
##000000	5.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C8AE9

Deuteranopia (green-blind)

#347CE3

Tritanopia (blue-blind)

#0095A6

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #557ee5;
/* rgb */ color: rgb(85, 126, 229);
/* oklch */ color: oklch(61.4% 0.162 265.6);

Tailwind

colors: {
  custom: {
    50: '#92a2ee',
    500: '#557ee5',
    950: '#000000',
  },
}

SCSS

$custom: #557ee5;
$custom-light: #92a2ee;
$custom-dark: #000000;

JSON

{
  "hex": "#557ee5",
  "rgb": {
    "r": 85,
    "g": 126,
    "b": 229
  },
  "hsl": {
    "h": 222.917,
    "s": 73.469,
    "l": 61.569
  },
  "oklch": {
    "l": 0.61443,
    "c": 0.16224,
    "h": 265.6
  },
  "luminance": 0.2251
}

Semantic roles & 50–950 ramp

primary

#557EE5

secondary

#E6D6B0

accent

#9D10D6

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #557EE5

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

Preview Lab → · Contrast checker → · Palette generator →