#557AEE#557AEE

#557AEE is a mid, vivid blue. Relative luminance 0.220; OKLCH L 61.2% C 0.179 H 267.6°. Best body text is #000000 at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#557AEE
RGB	rgb(85, 122, 238)
HSL	hsl(225, 82%, 63%)
HSV	hsv(225, 64%, 93%)
CMYK	cmyk(64.3%, 48.7%, 0%, 6.7%)
CIE-LAB	lab(54.05, 23.19, -62.47)
CIE-LCH	lch(54.05, 66.64, 290.37°)
OKLab	oklab(61.23% -0.0076 -0.179)
OKLCH	oklch(61.23% 0.179 267.6)
XYZ	xyz(26.1332, 22.0210, 83.7456)
Luminance	0.2202 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557AEE #EEC955

analogous

#55C6EE #557AEE #7C55EE

triadic

#557AEE #EE557A #7AEE55

tetradic

#557AEE #EE55C6 #EEC955 #55EE7C

square

#557AEE #EE55C6 #EEC955 #55EE7C

split-complementary

#557AEE #EE7C55 #C6EE55

monochromatic

#123AB6 #1D4EE8 #557AEE #8DA6F4 #C4D1F9

Accessibility & contrast

On white

3.89

#557AEE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.40

#557AEE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557AEE

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557AEE	#FFFFFF	#000000	##000000
##557AEE	1.00	3.89	5.40	5.40
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.40	21.00	1.00	1.00
##000000	5.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B89F2

Deuteranopia (green-blind)

#127BEC

Tritanopia (blue-blind)

#0095A9

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #557aee;
/* rgb */ color: rgb(85, 122, 238);
/* oklch */ color: oklch(61.2% 0.179 267.6);

Tailwind

colors: {
  custom: {
    50: '#93a0f4',
    500: '#557aee',
    950: '#000000',
  },
}

SCSS

$custom: #557aee;
$custom-light: #93a0f4;
$custom-dark: #000000;

JSON

{
  "hex": "#557aee",
  "rgb": {
    "r": 85,
    "g": 122,
    "b": 238
  },
  "hsl": {
    "h": 225.49,
    "s": 81.818,
    "l": 63.333
  },
  "oklch": {
    "l": 0.61227,
    "c": 0.17916,
    "h": 267.6
  },
  "luminance": 0.22023
}

Semantic roles & 50–950 ramp

primary

#557AEE

secondary

#EBDDB4

accent

#AA07DE

background

#F9F9FF

surface

#F2F2FE

border

#CCCCD6

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #557AEE

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

Preview Lab → · Contrast checker → · Palette generator →