#5557CB#5557CB

#5557CB is a mid, vivid blue. Relative luminance 0.131; OKLCH L 52.1% C 0.176 H 277.6°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#5557CB
RGB	rgb(85, 87, 203)
HSL	hsl(239, 53%, 56%)
HSV	hsv(239, 58%, 80%)
CMYK	cmyk(58.1%, 57.1%, 0%, 20.4%)
CIE-LAB	lab(42.85, 33.10, -60.72)
CIE-LCH	lch(42.85, 69.15, 298.59°)
OKLab	oklab(52.06% 0.0234 -0.1742)
OKLCH	oklch(52.06% 0.176 277.6)
XYZ	xyz(17.9306, 13.0582, 58.0640)
Luminance	0.1306 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5557CB #CBC955

analogous

#5592CB #5557CB #8E55CB

triadic

#5557CB #CB5557 #57CB55

tetradic

#5557CB #CB5592 #CBC955 #55CB8E

square

#5557CB #CB5592 #CBC955 #55CB8E

split-complementary

#5557CB #CB8E55 #92CB55

monochromatic

#27287F #3537AE #5557CB #8485D9 #B3B4E8

Accessibility & contrast

On white

5.81

#5557CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#5557CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5557CB

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5557CB	#FFFFFF	#000000	##FFFFFF
##5557CB	1.00	5.81	3.61	5.81
#FFFFFF	5.81	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ACF

Deuteranopia (green-blind)

#0060C9

Tritanopia (blue-blind)

#007288

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #5557cb;
/* rgb */ color: rgb(85, 87, 203);
/* oklch */ color: oklch(52.1% 0.176 277.6);

Tailwind

colors: {
  custom: {
    50: '#8f86dc',
    500: '#5557cb',
    950: '#000000',
  },
}

SCSS

$custom: #5557cb;
$custom-light: #8f86dc;
$custom-dark: #000000;

JSON

{
  "hex": "#5557cb",
  "rgb": {
    "r": 85,
    "g": 87,
    "b": 203
  },
  "hsl": {
    "h": 238.983,
    "s": 53.153,
    "l": 56.471
  },
  "oklch": {
    "l": 0.52061,
    "c": 0.17581,
    "h": 277.6
  },
  "luminance": 0.13059
}

Semantic roles & 50–950 ramp

primary

#5557CB

secondary

#D6D5A6

accent

#DA4BDD

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #5557CB

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

Preview Lab → · Contrast checker → · Palette generator →