#555BC5#555BC5

#555BC5 is a mid, vivid blue. Relative luminance 0.134; OKLCH L 52.4% C 0.162 H 276.8°. Best body text is #FFFFFF at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#555BC5
RGB	rgb(85, 91, 197)
HSL	hsl(237, 49%, 55%)
HSV	hsv(237, 57%, 77%)
CMYK	cmyk(56.9%, 53.8%, 0%, 22.7%)
CIE-LAB	lab(43.42, 28.65, -56.32)
CIE-LCH	lch(43.42, 63.19, 296.96°)
OKLab	oklab(52.36% 0.0192 -0.1613)
OKLCH	oklch(52.36% 0.162 276.8)
XYZ	xyz(17.5622, 13.4434, 54.4819)
Luminance	0.1344 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555BC5 #C5BF55

analogous

#5593C5 #555BC5 #8755C5

triadic

#555BC5 #C5555B #5BC555

tetradic

#555BC5 #C55593 #C5BF55 #55C587

square

#555BC5 #C55593 #C5BF55 #55C587

split-complementary

#555BC5 #C58755 #93C555

monochromatic

#292D77 #383EA5 #555BC5 #8387D5 #B0B3E4

Accessibility & contrast

On white

5.69

#555BC5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#555BC5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555BC5

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555BC5	#FFFFFF	#000000	##FFFFFF
##555BC5	1.00	5.69	3.69	5.69
#FFFFFF	5.69	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#196BC9

Deuteranopia (green-blind)

#0062C3

Tritanopia (blue-blind)

#127387

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #555bc5;
/* rgb */ color: rgb(85, 91, 197);
/* oklch */ color: oklch(52.4% 0.162 276.8);

Tailwind

colors: {
  custom: {
    50: '#8e89d7',
    500: '#555bc5',
    950: '#000000',
  },
}

SCSS

$custom: #555bc5;
$custom-light: #8e89d7;
$custom-dark: #000000;

JSON

{
  "hex": "#555bc5",
  "rgb": {
    "r": 85,
    "g": 91,
    "b": 197
  },
  "hsl": {
    "h": 236.786,
    "s": 49.123,
    "l": 55.294
  },
  "oklch": {
    "l": 0.52356,
    "c": 0.16242,
    "h": 276.8
  },
  "luminance": 0.13445
}

Semantic roles & 50–950 ramp

primary

#555BC5

secondary

#D2D0A3

accent

#D14FD9

background

#F9F8FD

surface

#F1F0FA

border

#CBCBD3

text

#0D0B14

muted

#7E7C83

Preview Lab

Preview with #555BC5

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

Preview Lab → · Contrast checker → · Palette generator →