#555BCE#555BCE

#555BCE is a mid, vivid blue. Relative luminance 0.139; OKLCH L 53.0% C 0.175 H 276.4°. Best body text is #FFFFFF at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#555BCE
RGB	rgb(85, 91, 206)
HSL	hsl(237, 55%, 57%)
HSV	hsv(237, 59%, 81%)
CMYK	cmyk(58.7%, 55.8%, 0%, 19.2%)
CIE-LAB	lab(44.04, 31.61, -60.51)
CIE-LCH	lch(44.04, 68.27, 297.58°)
OKLab	oklab(53.02% 0.0195 -0.1736)
OKLCH	oklch(53.02% 0.175 276.4)
XYZ	xyz(18.6244, 13.8683, 60.0760)
Luminance	0.1387 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555BCE #CEC855

analogous

#5597CE #555BCE #8C55CE

triadic

#555BCE #CE555B #5BCE55

tetradic

#555BCE #CE5597 #CEC855 #55CE8C

square

#555BCE #CE5597 #CEC855 #55CE8C

split-complementary

#555BCE #CE8C55 #97CE55

monochromatic

#262A83 #333AB2 #555BCE #8589DC #B4B7E9

Accessibility & contrast

On white

5.56

#555BCE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#555BCE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555BCE

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555BCE	#FFFFFF	#000000	##FFFFFF
##555BCE	1.00	5.56	3.77	5.56
#FFFFFF	5.56	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006DD2

Deuteranopia (green-blind)

#0063CC

Tritanopia (blue-blind)

#00768C

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #555bce;
/* rgb */ color: rgb(85, 91, 206);
/* oklch */ color: oklch(53.0% 0.175 276.4);

Tailwind

colors: {
  custom: {
    50: '#9089de',
    500: '#555bce',
    950: '#000000',
  },
}

SCSS

$custom: #555bce;
$custom-light: #9089de;
$custom-dark: #000000;

JSON

{
  "hex": "#555bce",
  "rgb": {
    "r": 85,
    "g": 91,
    "b": 206
  },
  "hsl": {
    "h": 237.025,
    "s": 55.251,
    "l": 57.059
  },
  "oklch": {
    "l": 0.53015,
    "c": 0.1747,
    "h": 276.4
  },
  "luminance": 0.1387
}

Semantic roles & 50–950 ramp

primary

#555BCE

secondary

#D8D6A7

accent

#D749DF

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #555BCE

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

Preview Lab → · Contrast checker → · Palette generator →