#557CE9#557CE9

#557CE9 is a mid, vivid blue. Relative luminance 0.222; OKLCH L 61.3% C 0.170 H 266.6°. Best body text is #000000 at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#557CE9
RGB	rgb(85, 124, 233)
HSL	hsl(224, 77%, 62%)
HSV	hsv(224, 64%, 91%)
CMYK	cmyk(63.5%, 46.8%, 0%, 8.6%)
CIE-LAB	lab(54.27, 20.26, -59.33)
CIE-LCH	lch(54.27, 62.69, 288.86°)
OKLab	oklab(61.3% -0.0101 -0.1697)
OKLCH	oklch(61.3% 0.17 266.6)
XYZ	xyz(25.6569, 22.2275, 80.0132)
Luminance	0.2223 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557CE9 #E9C255

analogous

#55C6E9 #557CE9 #7855E9

triadic

#557CE9 #E9557C #7CE955

tetradic

#557CE9 #E955C6 #E9C255 #55E978

square

#557CE9 #E955C6 #E9C255 #55E978

split-complementary

#557CE9 #E97855 #C6E955

monochromatic

#163EAD #1F52E2 #557CE9 #8BA6F0 #C1D0F7

Accessibility & contrast

On white

3.86

#557CE9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.45

#557CE9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557CE9

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557CE9	#FFFFFF	#000000	##000000
##557CE9	1.00	3.86	5.45	5.45
#FFFFFF	3.86	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)

#4589ED

Deuteranopia (green-blind)

#287BE7

Tritanopia (blue-blind)

#0095A7

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #557ce9;
/* rgb */ color: rgb(85, 124, 233);
/* oklch */ color: oklch(61.3% 0.170 266.6);

Tailwind

colors: {
  custom: {
    50: '#92a1f1',
    500: '#557ce9',
    950: '#000000',
  },
}

SCSS

$custom: #557ce9;
$custom-light: #92a1f1;
$custom-dark: #000000;

JSON

{
  "hex": "#557ce9",
  "rgb": {
    "r": 85,
    "g": 124,
    "b": 233
  },
  "hsl": {
    "h": 224.189,
    "s": 77.083,
    "l": 62.353
  },
  "oklch": {
    "l": 0.61295,
    "c": 0.17004,
    "h": 266.6
  },
  "luminance": 0.2223
}

Semantic roles & 50–950 ramp

primary

#557CE9

secondary

#E8DAB2

accent

#A30CD9

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #557CE9

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

Preview Lab → · Contrast checker → · Palette generator →