#555ECB#555ECB

#555ECB is a mid, vivid blue. Relative luminance 0.142; OKLCH L 53.4% C 0.167 H 275.6°. Best body text is #FFFFFF at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#555ECB
RGB	rgb(85, 94, 203)
HSL	hsl(235, 53%, 56%)
HSV	hsv(235, 58%, 80%)
CMYK	cmyk(58.1%, 53.7%, 0%, 20.4%)
CIE-LAB	lab(44.59, 28.75, -57.91)
CIE-LCH	lch(44.59, 64.66, 296.40°)
OKLab	oklab(53.35% 0.0164 -0.1659)
OKLCH	oklch(53.35% 0.167 275.6)
XYZ	xyz(18.5250, 14.2471, 58.2621)
Luminance	0.1425 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555ECB #CBC255

analogous

#5599CB #555ECB #8755CB

triadic

#555ECB #CB555E #5ECB55

tetradic

#555ECB #CB5599 #CBC255 #55CB87

square

#555ECB #CB5599 #CBC255 #55CB87

split-complementary

#555ECB #CB8755 #99CB55

monochromatic

#272E7F #353EAE #555ECB #848AD9 #B3B7E8

Accessibility & contrast

On white

5.46

#555ECB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#555ECB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555ECB

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555ECB	#FFFFFF	#000000	##FFFFFF
##555ECB	1.00	5.46	3.85	5.46
#FFFFFF	5.46	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#186FCF

Deuteranopia (green-blind)

#0065C9

Tritanopia (blue-blind)

#00778B

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #555ecb;
/* rgb */ color: rgb(85, 94, 203);
/* oklch */ color: oklch(53.4% 0.167 275.6);

Tailwind

colors: {
  custom: {
    50: '#8f8bdb',
    500: '#555ecb',
    950: '#000000',
  },
}

SCSS

$custom: #555ecb;
$custom-light: #8f8bdb;
$custom-dark: #000000;

JSON

{
  "hex": "#555ecb",
  "rgb": {
    "r": 85,
    "g": 94,
    "b": 203
  },
  "hsl": {
    "h": 235.424,
    "s": 53.153,
    "l": 56.471
  },
  "oklch": {
    "l": 0.53354,
    "c": 0.16674,
    "h": 275.6
  },
  "luminance": 0.14248
}

Semantic roles & 50–950 ramp

primary

#555ECB

secondary

#D6D2A6

accent

#D14BDD

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #555ECB

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

Preview Lab → · Contrast checker → · Palette generator →