#555CAB#555CAB

#555CAB is a mid, vivid blue. Relative luminance 0.125; OKLCH L 50.8% C 0.124 H 277.2°. Best body text is #FFFFFF at 5.99:1 contrast (WCAG AA passes).

Color values

HEX	#555CAB
RGB	rgb(85, 92, 171)
HSL	hsl(235, 34%, 50%)
HSV	hsv(235, 50%, 67%)
CMYK	cmyk(50.3%, 46.2%, 0%, 32.9%)
CIE-LAB	lab(42.04, 19.57, -43.35)
CIE-LCH	lch(42.04, 47.56, 294.29°)
OKLab	oklab(50.78% 0.0156 -0.1231)
OKLCH	oklch(50.78% 0.124 277.2)
XYZ	xyz(14.9219, 12.5250, 40.1515)
Luminance	0.1253 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555CAB #ABA455

analogous

#5587AB #555CAB #7955AB

triadic

#555CAB #AB555C #5CAB55

tetradic

#555CAB #AB5587 #ABA455 #55AB79

square

#555CAB #AB5587 #ABA455 #55AB79

split-complementary

#555CAB #AB7955 #87AB55

monochromatic

#2C3059 #404682 #555CAB #7E83BF #A7ABD3

Accessibility & contrast

On white

5.99

#555CAB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#555CAB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555CAB

5.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555CAB	#FFFFFF	#000000	##FFFFFF
##555CAB	1.00	5.99	3.51	5.99
#FFFFFF	5.99	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B67AE

Deuteranopia (green-blind)

#3360A9

Tritanopia (blue-blind)

#336D7B

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #555cab;
/* rgb */ color: rgb(85, 92, 171);
/* oklch */ color: oklch(50.8% 0.124 277.2);

Tailwind

colors: {
  custom: {
    50: '#8a8ac4',
    500: '#555cab',
    950: '#000000',
  },
}

SCSS

$custom: #555cab;
$custom-light: #8a8ac4;
$custom-dark: #000000;

JSON

{
  "hex": "#555cab",
  "rgb": {
    "r": 85,
    "g": 92,
    "b": 171
  },
  "hsl": {
    "h": 235.116,
    "s": 33.858,
    "l": 50.196
  },
  "oklch": {
    "l": 0.50783,
    "c": 0.12413,
    "h": 277.2
  },
  "luminance": 0.12526
}

Semantic roles & 50–950 ramp

primary

#555CAB

secondary

#C1BE9B

accent

#C15ECA

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0B13

muted

#7D7C82

Preview Lab

Preview with #555CAB

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

Preview Lab → · Contrast checker → · Palette generator →