#555CCC#555CCC

#555CCC is a mid, vivid blue. Relative luminance 0.139; OKLCH L 53.1% C 0.171 H 276.2°. Best body text is #FFFFFF at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#555CCC
RGB	rgb(85, 92, 204)
HSL	hsl(236, 54%, 57%)
HSV	hsv(236, 58%, 80%)
CMYK	cmyk(58.3%, 54.9%, 0%, 20%)
CIE-LAB	lab(44.15, 30.33, -59.19)
CIE-LCH	lch(44.15, 66.50, 297.13°)
OKLab	oklab(53.05% 0.0185 -0.1697)
OKLCH	oklch(53.05% 0.171 276.2)
XYZ	xyz(18.4690, 13.9439, 58.8332)
Luminance	0.1394 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555CCC #CCC555

analogous

#5597CC #555CCC #8A55CC

triadic

#555CCC #CC555C #5CCC55

tetradic

#555CCC #CC5597 #CCC555 #55CC8A

square

#555CCC #CC5597 #CCC555 #55CC8A

split-complementary

#555CCC #CC8A55 #97CC55

monochromatic

#262C80 #353CAF #555CCC #8489DA #B3B6E8

Accessibility & contrast

On white

5.54

#555CCC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#555CCC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555CCC

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555CCC	#FFFFFF	#000000	##FFFFFF
##555CCC	1.00	5.54	3.79	5.54
#FFFFFF	5.54	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#096ED0

Deuteranopia (green-blind)

#0063CA

Tritanopia (blue-blind)

#00768B

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #555ccc;
/* rgb */ color: rgb(85, 92, 204);
/* oklch */ color: oklch(53.1% 0.171 276.2);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#555ccc",
  "rgb": {
    "r": 85,
    "g": 92,
    "b": 204
  },
  "hsl": {
    "h": 236.471,
    "s": 53.846,
    "l": 56.667
  },
  "oklch": {
    "l": 0.53052,
    "c": 0.1707,
    "h": 276.2
  },
  "luminance": 0.13945
}

Semantic roles & 50–950 ramp

primary

#555CCC

secondary

#D7D4A6

accent

#D54BDD

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #555CCC

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

Preview Lab → · Contrast checker → · Palette generator →