#5557CD#5557CD

#5557CD is a mid, vivid blue. Relative luminance 0.132; OKLCH L 52.2% C 0.178 H 277.5°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#5557CD
RGB	rgb(85, 87, 205)
HSL	hsl(239, 55%, 57%)
HSV	hsv(239, 59%, 80%)
CMYK	cmyk(58.5%, 57.6%, 0%, 19.6%)
CIE-LAB	lab(42.99, 33.75, -61.64)
CIE-LCH	lch(42.99, 70.27, 298.70°)
OKLab	oklab(52.21% 0.0234 -0.1769)
OKLCH	oklch(52.21% 0.178 277.5)
XYZ	xyz(18.1704, 13.1541, 59.3273)
Luminance	0.1316 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5557CD #CDCB55

analogous

#5593CD #5557CD #8F55CD

triadic

#5557CD #CD5557 #57CD55

tetradic

#5557CD #CD5593 #CDCB55 #55CD8F

square

#5557CD #CD5593 #CDCB55 #55CD8F

split-complementary

#5557CD #CD8F55 #93CD55

monochromatic

#262882 #3436B1 #5557CD #8486DB #B4B4E9

Accessibility & contrast

On white

5.78

#5557CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#5557CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5557CD

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5557CD	#FFFFFF	#000000	##FFFFFF
##5557CD	1.00	5.78	3.63	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BD1

Deuteranopia (green-blind)

#0061CB

Tritanopia (blue-blind)

#007389

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #5557cd;
/* rgb */ color: rgb(85, 87, 205);
/* oklch */ color: oklch(52.2% 0.178 277.5);

Tailwind

colors: {
  custom: {
    50: '#9086dd',
    500: '#5557cd',
    950: '#000000',
  },
}

SCSS

$custom: #5557cd;
$custom-light: #9086dd;
$custom-dark: #000000;

JSON

{
  "hex": "#5557cd",
  "rgb": {
    "r": 85,
    "g": 87,
    "b": 205
  },
  "hsl": {
    "h": 239,
    "s": 54.545,
    "l": 56.863
  },
  "oklch": {
    "l": 0.52213,
    "c": 0.17849,
    "h": 277.5
  },
  "luminance": 0.13155
}

Semantic roles & 50–950 ramp

primary

#5557CD

secondary

#D7D7A6

accent

#DB4ADE

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #5557CD

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

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