#555FCF#555FCF

#555FCF is a mid, vivid blue. Relative luminance 0.146; OKLCH L 53.8% C 0.171 H 275.2°. Best body text is #FFFFFF at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#555FCF
RGB	rgb(85, 95, 207)
HSL	hsl(235, 56%, 57%)
HSV	hsv(235, 59%, 81%)
CMYK	cmyk(58.9%, 54.1%, 0%, 18.8%)
CIE-LAB	lab(45.11, 29.45, -59.37)
CIE-LCH	lch(45.11, 66.27, 296.39°)
OKLab	oklab(53.83% 0.0156 -0.1702)
OKLCH	oklch(53.83% 0.171 275.2)
XYZ	xyz(19.0973, 14.6193, 60.8348)
Luminance	0.1462 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555FCF #CFC555

analogous

#559CCF #555FCF #8855CF

triadic

#555FCF #CF555F #5FCF55

tetradic

#555FCF #CF559C #CFC555 #55CF88

square

#555FCF #CF559C #CFC555 #55CF88

split-complementary

#555FCF #CF8855 #9CCF55

monochromatic

#252D84 #333DB4 #555FCF #858CDC #B4B9EA

Accessibility & contrast

On white

5.35

#555FCF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.92

#555FCF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555FCF

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555FCF	#FFFFFF	#000000	##FFFFFF
##555FCF	1.00	5.35	3.92	5.35
#FFFFFF	5.35	1.00	21.00	1.00
#000000	3.92	21.00	1.00	21.00
##FFFFFF	5.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1370D3

Deuteranopia (green-blind)

#0066CD

Tritanopia (blue-blind)

#00798E

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #555fcf;
/* rgb */ color: rgb(85, 95, 207);
/* oklch */ color: oklch(53.8% 0.171 275.2);

Tailwind

colors: {
  custom: {
    50: '#908cde',
    500: '#555fcf',
    950: '#000000',
  },
}

SCSS

$custom: #555fcf;
$custom-light: #908cde;
$custom-dark: #000000;

JSON

{
  "hex": "#555fcf",
  "rgb": {
    "r": 85,
    "g": 95,
    "b": 207
  },
  "hsl": {
    "h": 235.082,
    "s": 55.963,
    "l": 57.255
  },
  "oklch": {
    "l": 0.53832,
    "c": 0.17091,
    "h": 275.2
  },
  "luminance": 0.14621
}

Semantic roles & 50–950 ramp

primary

#555FCF

secondary

#D9D5A7

accent

#D349DF

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #555FCF

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

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