#557BEE#557BEE

#557BEE is a mid, vivid blue. Relative luminance 0.223; OKLCH L 61.4% C 0.178 H 267.3°. Best body text is #000000 at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#557BEE
RGB	rgb(85, 123, 238)
HSL	hsl(225, 82%, 63%)
HSV	hsv(225, 64%, 93%)
CMYK	cmyk(64.3%, 48.3%, 0%, 6.7%)
CIE-LAB	lab(54.31, 22.58, -62.05)
CIE-LCH	lch(54.31, 66.03, 290.00°)
OKLab	oklab(61.43% -0.0085 -0.1778)
OKLCH	oklch(61.43% 0.178 267.3)
XYZ	xyz(26.2566, 22.2678, 83.7868)
Luminance	0.2227 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557BEE #EEC855

analogous

#55C7EE #557BEE #7B55EE

triadic

#557BEE #EE557B #7BEE55

tetradic

#557BEE #EE55C7 #EEC855 #55EE7B

square

#557BEE #EE55C7 #EEC855 #55EE7B

split-complementary

#557BEE #EE7B55 #C7EE55

monochromatic

#123BB6 #1D50E8 #557BEE #8DA6F4 #C4D1F9

Accessibility & contrast

On white

3.85

#557BEE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.45

#557BEE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557BEE

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557BEE	#FFFFFF	#000000	##000000
##557BEE	1.00	3.85	5.45	5.45
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.45	21.00	1.00	1.00
##000000	5.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D89F2

Deuteranopia (green-blind)

#187BEC

Tritanopia (blue-blind)

#0096A9

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #557bee;
/* rgb */ color: rgb(85, 123, 238);
/* oklch */ color: oklch(61.4% 0.178 267.3);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#557bee",
  "rgb": {
    "r": 85,
    "g": 123,
    "b": 238
  },
  "hsl": {
    "h": 225.098,
    "s": 81.818,
    "l": 63.333
  },
  "oklch": {
    "l": 0.61425,
    "c": 0.17796,
    "h": 267.3
  },
  "luminance": 0.2227
}

Semantic roles & 50–950 ramp

primary

#557BEE

secondary

#EBDDB4

accent

#A907DE

background

#F9F9FF

surface

#F2F2FE

border

#CCCCD6

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #557BEE

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

Preview Lab → · Contrast checker → · Palette generator →