#555DCF#555DCF

#555DCF is a mid, vivid blue. Relative luminance 0.143; OKLCH L 53.5% C 0.173 H 275.8°. Best body text is #FFFFFF at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#555DCF
RGB	rgb(85, 93, 207)
HSL	hsl(236, 56%, 57%)
HSV	hsv(236, 59%, 81%)
CMYK	cmyk(58.9%, 55.1%, 0%, 18.8%)
CIE-LAB	lab(44.61, 30.70, -60.17)
CIE-LCH	lch(44.61, 67.55, 297.03°)
OKLab	oklab(53.46% 0.0176 -0.1726)
OKLCH	oklch(53.46% 0.173 275.8)
XYZ	xyz(18.9195, 14.2636, 60.7755)
Luminance	0.1426 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555DCF #CFC755

analogous

#559ACF #555DCF #8A55CF

triadic

#555DCF #CF555D #5DCF55

tetradic

#555DCF #CF559A #CFC755 #55CF8A

square

#555DCF #CF559A #CFC755 #55CF8A

split-complementary

#555DCF #CF8A55 #9ACF55

monochromatic

#252C84 #333BB4 #555DCF #858ADC #B4B8EA

Accessibility & contrast

On white

5.45

#555DCF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#555DCF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555DCF

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555DCF	#FFFFFF	#000000	##FFFFFF
##555DCF	1.00	5.45	3.85	5.45
#FFFFFF	5.45	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#046FD3

Deuteranopia (green-blind)

#0064CD

Tritanopia (blue-blind)

#00788D

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #555dcf;
/* rgb */ color: rgb(85, 93, 207);
/* oklch */ color: oklch(53.5% 0.173 275.8);

Tailwind

colors: {
  custom: {
    50: '#908ade',
    500: '#555dcf',
    950: '#000000',
  },
}

SCSS

$custom: #555dcf;
$custom-light: #908ade;
$custom-dark: #000000;

JSON

{
  "hex": "#555dcf",
  "rgb": {
    "r": 85,
    "g": 93,
    "b": 207
  },
  "hsl": {
    "h": 236.066,
    "s": 55.963,
    "l": 57.255
  },
  "oklch": {
    "l": 0.53459,
    "c": 0.17348,
    "h": 275.8
  },
  "luminance": 0.14265
}

Semantic roles & 50–950 ramp

primary

#555DCF

secondary

#D9D5A7

accent

#D549DF

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #555DCF

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

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