#556BE1#556BE1

#556BE1 is a mid, vivid blue. Relative luminance 0.179; OKLCH L 57.4% C 0.180 H 271.6°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#556BE1
RGB	rgb(85, 107, 225)
HSL	hsl(231, 70%, 61%)
HSV	hsv(231, 62%, 88%)
CMYK	cmyk(62.2%, 52.4%, 0%, 11.8%)
CIE-LAB	lab(49.35, 28.03, -62.75)
CIE-LCH	lch(49.35, 68.73, 294.07°)
OKLab	oklab(57.4% 0.0051 -0.18)
OKLCH	oklch(57.4% 0.18 271.6)
XYZ	xyz(22.5901, 17.8810, 73.4805)
Luminance	0.1788 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556BE1 #E1CB55

analogous

#55B1E1 #556BE1 #8555E1

triadic

#556BE1 #E1556B #6BE155

tetradic

#556BE1 #E155B1 #E1CB55 #55E185

square

#556BE1 #E155B1 #E1CB55 #55E185

split-complementary

#556BE1 #E18555 #B1E155

monochromatic

#1C319F #2541D3 #556BE1 #8998EA #BDC6F3

Accessibility & contrast

On white

4.59

#556BE1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#556BE1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #556BE1

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556BE1	#FFFFFF	#000000	##FFFFFF
##556BE1	1.00	4.59	4.58	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.58	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#207CE5

Deuteranopia (green-blind)

#006FDF

Tritanopia (blue-blind)

#00879C

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #556be1;
/* rgb */ color: rgb(85, 107, 225);
/* oklch */ color: oklch(57.4% 0.180 271.6);

Tailwind

colors: {
  custom: {
    50: '#9295eb',
    500: '#556be1',
    950: '#000000',
  },
}

SCSS

$custom: #556be1;
$custom-light: #9295eb;
$custom-dark: #000000;

JSON

{
  "hex": "#556be1",
  "rgb": {
    "r": 85,
    "g": 107,
    "b": 225
  },
  "hsl": {
    "h": 230.571,
    "s": 70,
    "l": 60.784
  },
  "oklch": {
    "l": 0.57404,
    "c": 0.1801,
    "h": 271.6
  },
  "luminance": 0.17883
}

Semantic roles & 50–950 ramp

primary

#556BE1

secondary

#E3DBAE

accent

#B414D2

background

#F9F9FE

surface

#F2F1FD

border

#CCCBD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #556BE1

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

Preview Lab → · Contrast checker → · Palette generator →