#5557CC#5557CC

#5557CC is a mid, vivid blue. Relative luminance 0.131; OKLCH L 52.1% C 0.177 H 277.6°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#5557CC
RGB	rgb(85, 87, 204)
HSL	hsl(239, 54%, 57%)
HSV	hsv(239, 58%, 80%)
CMYK	cmyk(58.3%, 57.4%, 0%, 20%)
CIE-LAB	lab(42.92, 33.42, -61.18)
CIE-LCH	lch(42.92, 69.71, 298.65°)
OKLab	oklab(52.14% 0.0234 -0.1756)
OKLCH	oklch(52.14% 0.177 277.6)
XYZ	xyz(18.0501, 13.1060, 58.6936)
Luminance	0.1311 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5557CC #CCCA55

analogous

#5593CC #5557CC #8F55CC

triadic

#5557CC #CC5557 #57CC55

tetradic

#5557CC #CC5593 #CCCA55 #55CC8F

square

#5557CC #CC5593 #CCCA55 #55CC8F

split-complementary

#5557CC #CC8F55 #93CC55

monochromatic

#262880 #3537AF #5557CC #8486DA #B3B4E8

Accessibility & contrast

On white

5.80

#5557CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#5557CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5557CC

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5557CC	#FFFFFF	#000000	##FFFFFF
##5557CC	1.00	5.80	3.62	5.80
#FFFFFF	5.80	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AD0

Deuteranopia (green-blind)

#0060CA

Tritanopia (blue-blind)

#007389

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #5557cc;
/* rgb */ color: rgb(85, 87, 204);
/* oklch */ color: oklch(52.1% 0.177 277.6);

Tailwind

colors: {
  custom: {
    50: '#9086dc',
    500: '#5557cc',
    950: '#000000',
  },
}

SCSS

$custom: #5557cc;
$custom-light: #9086dc;
$custom-dark: #000000;

JSON

{
  "hex": "#5557cc",
  "rgb": {
    "r": 85,
    "g": 87,
    "b": 204
  },
  "hsl": {
    "h": 238.992,
    "s": 53.846,
    "l": 56.667
  },
  "oklch": {
    "l": 0.52137,
    "c": 0.17715,
    "h": 277.6
  },
  "luminance": 0.13107
}

Semantic roles & 50–950 ramp

primary

#5557CC

secondary

#D7D6A6

accent

#DB4BDD

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #5557CC

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

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