#555BC7#555BC7

#555BC7 is a mid, vivid blue. Relative luminance 0.135; OKLCH L 52.5% C 0.165 H 276.7°. Best body text is #FFFFFF at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#555BC7
RGB	rgb(85, 91, 199)
HSL	hsl(237, 50%, 56%)
HSV	hsv(237, 57%, 78%)
CMYK	cmyk(57.3%, 54.3%, 0%, 22%)
CIE-LAB	lab(43.56, 29.30, -57.26)
CIE-LCH	lch(43.56, 64.32, 297.10°)
OKLab	oklab(52.5% 0.0193 -0.164)
OKLCH	oklch(52.5% 0.165 276.7)
XYZ	xyz(17.7929, 13.5357, 55.6968)
Luminance	0.1354 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555BC7 #C7C155

analogous

#5594C7 #555BC7 #8855C7

triadic

#555BC7 #C7555B #5BC755

tetradic

#555BC7 #C75594 #C7C155 #55C788

square

#555BC7 #C75594 #C7C155 #55C788

split-complementary

#555BC7 #C78855 #94C755

monochromatic

#282C7A #373DA8 #555BC7 #8387D6 #B1B4E5

Accessibility & contrast

On white

5.66

#555BC7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#555BC7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555BC7

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555BC7	#FFFFFF	#000000	##FFFFFF
##555BC7	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)

#146CCB

Deuteranopia (green-blind)

#0062C5

Tritanopia (blue-blind)

#0D7488

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #555bc7;
/* rgb */ color: rgb(85, 91, 199);
/* oklch */ color: oklch(52.5% 0.165 276.7);

Tailwind

colors: {
  custom: {
    50: '#8f89d9',
    500: '#555bc7',
    950: '#000000',
  },
}

SCSS

$custom: #555bc7;
$custom-light: #8f89d9;
$custom-dark: #000000;

JSON

{
  "hex": "#555bc7",
  "rgb": {
    "r": 85,
    "g": 91,
    "b": 199
  },
  "hsl": {
    "h": 236.842,
    "s": 50.442,
    "l": 55.686
  },
  "oklch": {
    "l": 0.525,
    "c": 0.16517,
    "h": 276.7
  },
  "luminance": 0.13537
}

Semantic roles & 50–950 ramp

primary

#555BC7

secondary

#D4D1A4

accent

#D34EDA

background

#F9F8FD

surface

#F2F0FA

border

#CCCBD3

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #555BC7

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

Preview Lab → · Contrast checker → · Palette generator →