#555CD0#555CD0

#555CD0 is a mid, vivid blue. Relative luminance 0.141; OKLCH L 53.3% C 0.176 H 276.1°. Best body text is #FFFFFF at 5.49:1 contrast (WCAG AA passes).

Color values

HEX	#555CD0
RGB	rgb(85, 92, 208)
HSL	hsl(237, 57%, 57%)
HSV	hsv(237, 59%, 82%)
CMYK	cmyk(59.1%, 55.8%, 0%, 18.4%)
CIE-LAB	lab(44.43, 31.65, -61.04)
CIE-LCH	lch(44.43, 68.75, 297.41°)
OKLab	oklab(53.35% 0.0186 -0.1751)
OKLCH	oklch(53.35% 0.176 276.1)
XYZ	xyz(18.9549, 14.1382, 61.3924)
Luminance	0.1414 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555CD0 #D0C955

analogous

#559AD0 #555CD0 #8B55D0

triadic

#555CD0 #D0555C #5CD055

tetradic

#555CD0 #D0559A #D0C955 #55D08B

square

#555CD0 #D0559A #D0C955 #55D08B

split-complementary

#555CD0 #D08B55 #9AD055

monochromatic

#252A86 #323AB6 #555CD0 #858ADD #B5B8EB

Accessibility & contrast

On white

5.49

#555CD0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.83

#555CD0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555CD0

5.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555CD0	#FFFFFF	#000000	##FFFFFF
##555CD0	1.00	5.49	3.83	5.49
#FFFFFF	5.49	1.00	21.00	1.00
#000000	3.83	21.00	1.00	21.00
##FFFFFF	5.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ED4

Deuteranopia (green-blind)

#0064CE

Tritanopia (blue-blind)

#00778D

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #555cd0;
/* rgb */ color: rgb(85, 92, 208);
/* oklch */ color: oklch(53.3% 0.176 276.1);

Tailwind

colors: {
  custom: {
    50: '#908adf',
    500: '#555cd0',
    950: '#000000',
  },
}

SCSS

$custom: #555cd0;
$custom-light: #908adf;
$custom-dark: #000000;

JSON

{
  "hex": "#555cd0",
  "rgb": {
    "r": 85,
    "g": 92,
    "b": 208
  },
  "hsl": {
    "h": 236.585,
    "s": 56.682,
    "l": 57.451
  },
  "oklch": {
    "l": 0.53348,
    "c": 0.17612,
    "h": 276.1
  },
  "luminance": 0.1414
}

Semantic roles & 50–950 ramp

primary

#555CD0

secondary

#D9D6A8

accent

#D748E0

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #555CD0

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

Preview Lab → · Contrast checker → · Palette generator →