#5557BF#5557BF

#5557BF is a mid, vivid blue. Relative luminance 0.125; OKLCH L 51.2% C 0.159 H 278.3°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#5557BF
RGB	rgb(85, 87, 191)
HSL	hsl(239, 45%, 54%)
HSV	hsv(239, 55%, 75%)
CMYK	cmyk(55.5%, 54.5%, 0%, 25.1%)
CIE-LAB	lab(42.01, 29.18, -55.12)
CIE-LCH	lch(42.01, 62.37, 297.90°)
OKLab	oklab(51.17% 0.0231 -0.1578)
OKLCH	oklch(51.17% 0.159 278.3)
XYZ	xyz(16.5555, 12.5082, 50.8220)
Luminance	0.1251 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5557BF #BFBD55

analogous

#558CBF #5557BF #8855BF

triadic

#5557BF #BF5557 #57BF55

tetradic

#5557BF #BF558C #BFBD55 #55BF88

square

#5557BF #BF558C #BFBD55 #55BF88

split-complementary

#5557BF #BF8855 #8CBF55

monochromatic

#2A2B70 #3B3D9C #5557BF #8183D0 #AEAFE0

Accessibility & contrast

On white

6.00

#5557BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#5557BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5557BF

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5557BF	#FFFFFF	#000000	##FFFFFF
##5557BF	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1568C3

Deuteranopia (green-blind)

#005FBD

Tritanopia (blue-blind)

#1F6F82

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #5557bf;
/* rgb */ color: rgb(85, 87, 191);
/* oklch */ color: oklch(51.2% 0.159 278.3);

Tailwind

colors: {
  custom: {
    50: '#8e86d3',
    500: '#5557bf',
    950: '#000000',
  },
}

SCSS

$custom: #5557bf;
$custom-light: #8e86d3;
$custom-dark: #000000;

JSON

{
  "hex": "#5557bf",
  "rgb": {
    "r": 85,
    "g": 87,
    "b": 191
  },
  "hsl": {
    "h": 238.868,
    "s": 45.299,
    "l": 54.118
  },
  "oklch": {
    "l": 0.51171,
    "c": 0.15945,
    "h": 278.3
  },
  "luminance": 0.12509
}

Semantic roles & 50–950 ramp

primary

#5557BF

secondary

#CECEA1

accent

#D353D5

background

#F9F8FD

surface

#F1EFFA

border

#CBCAD3

text

#0D0B14

muted

#7E7C83

Preview Lab

Preview with #5557BF

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

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