#555FCC#555FCC

#555FCC is a mid, vivid blue. Relative luminance 0.145; OKLCH L 53.6% C 0.167 H 275.3°. Best body text is #FFFFFF at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#555FCC
RGB	rgb(85, 95, 204)
HSL	hsl(235, 54%, 57%)
HSV	hsv(235, 58%, 80%)
CMYK	cmyk(58.3%, 53.4%, 0%, 20%)
CIE-LAB	lab(44.91, 28.46, -57.97)
CIE-LCH	lch(44.91, 64.58, 296.15°)
OKLab	oklab(53.62% 0.0154 -0.1661)
OKLCH	oklch(53.62% 0.167 275.3)
XYZ	xyz(18.7341, 14.4740, 58.9216)
Luminance	0.1447 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555FCC #CCC255

analogous

#559BCC #555FCC #8755CC

triadic

#555FCC #CC555F #5FCC55

tetradic

#555FCC #CC559B #CCC255 #55CC87

square

#555FCC #CC559B #CCC255 #55CC87

split-complementary

#555FCC #CC8755 #9BCC55

monochromatic

#262E80 #353FAF #555FCC #848BDA #B3B8E8

Accessibility & contrast

On white

5.39

#555FCC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.89

#555FCC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555FCC

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555FCC	#FFFFFF	#000000	##FFFFFF
##555FCC	1.00	5.39	3.89	5.39
#FFFFFF	5.39	1.00	21.00	1.00
#000000	3.89	21.00	1.00	21.00
##FFFFFF	5.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A6FD0

Deuteranopia (green-blind)

#0065CA

Tritanopia (blue-blind)

#00788C

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #555fcc;
/* rgb */ color: rgb(85, 95, 204);
/* oklch */ color: oklch(53.6% 0.167 275.3);

Tailwind

colors: {
  custom: {
    50: '#8f8cdc',
    500: '#555fcc',
    950: '#000000',
  },
}

SCSS

$custom: #555fcc;
$custom-light: #8f8cdc;
$custom-dark: #000000;

JSON

{
  "hex": "#555fcc",
  "rgb": {
    "r": 85,
    "g": 95,
    "b": 204
  },
  "hsl": {
    "h": 234.958,
    "s": 53.846,
    "l": 56.667
  },
  "oklch": {
    "l": 0.53616,
    "c": 0.16681,
    "h": 275.3
  },
  "luminance": 0.14475
}

Semantic roles & 50–950 ramp

primary

#555FCC

secondary

#D7D3A6

accent

#D14BDD

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #555FCC

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

Preview Lab → · Contrast checker → · Palette generator →