#555ACB#555ACB

#555ACB is a mid, vivid blue. Relative luminance 0.136; OKLCH L 52.6% C 0.172 H 276.8°. Best body text is #FFFFFF at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#555ACB
RGB	rgb(85, 90, 203)
HSL	hsl(237, 53%, 56%)
HSV	hsv(237, 58%, 80%)
CMYK	cmyk(58.1%, 55.7%, 0%, 20.4%)
CIE-LAB	lab(43.59, 31.24, -59.53)
CIE-LCH	lch(43.59, 67.23, 297.69°)
OKLab	oklab(52.61% 0.0204 -0.1707)
OKLCH	oklch(52.61% 0.172 276.8)
XYZ	xyz(18.1785, 13.5541, 58.1466)
Luminance	0.1356 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555ACB #CBC655

analogous

#5595CB #555ACB #8B55CB

triadic

#555ACB #CB555A #5ACB55

tetradic

#555ACB #CB5595 #CBC655 #55CB8B

square

#555ACB #CB5595 #CBC655 #55CB8B

split-complementary

#555ACB #CB8B55 #95CB55

monochromatic

#272B7F #353AAE #555ACB #8487D9 #B3B5E8

Accessibility & contrast

On white

5.66

#555ACB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#555ACB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555ACB

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555ACB	#FFFFFF	#000000	##FFFFFF
##555ACB	1.00	5.66	3.71	5.66
#FFFFFF	5.66	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CCF

Deuteranopia (green-blind)

#0062C9

Tritanopia (blue-blind)

#00748A

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #555acb;
/* rgb */ color: rgb(85, 90, 203);
/* oklch */ color: oklch(52.6% 0.172 276.8);

Tailwind

colors: {
  custom: {
    50: '#8f88dc',
    500: '#555acb',
    950: '#000000',
  },
}

SCSS

$custom: #555acb;
$custom-light: #8f88dc;
$custom-dark: #000000;

JSON

{
  "hex": "#555acb",
  "rgb": {
    "r": 85,
    "g": 90,
    "b": 203
  },
  "hsl": {
    "h": 237.458,
    "s": 53.153,
    "l": 56.471
  },
  "oklch": {
    "l": 0.52608,
    "c": 0.17193,
    "h": 276.8
  },
  "luminance": 0.13555
}

Semantic roles & 50–950 ramp

primary

#555ACB

secondary

#D6D4A6

accent

#D64BDD

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #555ACB

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

Preview Lab → · Contrast checker → · Palette generator →