#555DCB#555DCB

#555DCB is a mid, vivid blue. Relative luminance 0.141; OKLCH L 53.2% C 0.168 H 275.9°. Best body text is #FFFFFF at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#555DCB
RGB	rgb(85, 93, 203)
HSL	hsl(236, 53%, 56%)
HSV	hsv(236, 58%, 80%)
CMYK	cmyk(58.1%, 54.2%, 0%, 20.4%)
CIE-LAB	lab(44.33, 29.38, -58.32)
CIE-LCH	lch(44.33, 65.30, 296.74°)
OKLab	oklab(53.17% 0.0174 -0.1671)
OKLCH	oklch(53.17% 0.168 275.9)
XYZ	xyz(18.4367, 14.0704, 58.2327)
Luminance	0.1407 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555DCB #CBC355

analogous

#5598CB #555DCB #8855CB

triadic

#555DCB #CB555D #5DCB55

tetradic

#555DCB #CB5598 #CBC355 #55CB88

square

#555DCB #CB5598 #CBC355 #55CB88

split-complementary

#555DCB #CB8855 #98CB55

monochromatic

#272D7F #353DAE #555DCB #848AD9 #B3B6E8

Accessibility & contrast

On white

5.51

#555DCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#555DCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555DCB

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555DCB	#FFFFFF	#000000	##FFFFFF
##555DCB	1.00	5.51	3.81	5.51
#FFFFFF	5.51	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#136ECF

Deuteranopia (green-blind)

#0064C9

Tritanopia (blue-blind)

#00778B

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #555dcb;
/* rgb */ color: rgb(85, 93, 203);
/* oklch */ color: oklch(53.2% 0.168 275.9);

Tailwind

colors: {
  custom: {
    50: '#8f8adc',
    500: '#555dcb',
    950: '#000000',
  },
}

SCSS

$custom: #555dcb;
$custom-light: #8f8adc;
$custom-dark: #000000;

JSON

{
  "hex": "#555dcb",
  "rgb": {
    "r": 85,
    "g": 93,
    "b": 203
  },
  "hsl": {
    "h": 235.932,
    "s": 53.153,
    "l": 56.471
  },
  "oklch": {
    "l": 0.53166,
    "c": 0.16803,
    "h": 275.9
  },
  "luminance": 0.14072
}

Semantic roles & 50–950 ramp

primary

#555DCB

secondary

#D6D3A6

accent

#D34BDD

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #555DCB

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

Preview Lab → · Contrast checker → · Palette generator →