#556FE1#556FE1

#556FE1 is a mid, vivid blue. Relative luminance 0.187; OKLCH L 58.2% C 0.175 H 270.4°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#556FE1
RGB	rgb(85, 111, 225)
HSL	hsl(229, 70%, 61%)
HSV	hsv(229, 62%, 88%)
CMYK	cmyk(62.2%, 50.7%, 0%, 11.8%)
CIE-LAB	lab(50.38, 25.55, -61.10)
CIE-LCH	lch(50.38, 66.23, 292.70°)
OKLab	oklab(58.18% 0.0014 -0.1751)
OKLCH	oklch(58.18% 0.175 270.4)
XYZ	xyz(23.0168, 18.7344, 73.6227)
Luminance	0.1874 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556FE1 #E1C755

analogous

#55B5E1 #556FE1 #8155E1

triadic

#556FE1 #E1556F #6FE155

tetradic

#556FE1 #E155B5 #E1C755 #55E181

square

#556FE1 #E155B5 #E1C755 #55E181

split-complementary

#556FE1 #E18155 #B5E155

monochromatic

#1C359F #2546D3 #556FE1 #899BEA #BDC7F3

Accessibility & contrast

On white

4.42

#556FE1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#556FE1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #556FE1

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556FE1	#FFFFFF	#000000	##000000
##556FE1	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E7EE5

Deuteranopia (green-blind)

#0072DF

Tritanopia (blue-blind)

#00899D

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #556fe1;
/* rgb */ color: rgb(85, 111, 225);
/* oklch */ color: oklch(58.2% 0.175 270.4);

Tailwind

colors: {
  custom: {
    50: '#9298eb',
    500: '#556fe1',
    950: '#000000',
  },
}

SCSS

$custom: #556fe1;
$custom-light: #9298eb;
$custom-dark: #000000;

JSON

{
  "hex": "#556fe1",
  "rgb": {
    "r": 85,
    "g": 111,
    "b": 225
  },
  "hsl": {
    "h": 228.857,
    "s": 70,
    "l": 60.784
  },
  "oklch": {
    "l": 0.58176,
    "c": 0.17513,
    "h": 270.4
  },
  "luminance": 0.18736
}

Semantic roles & 50–950 ramp

primary

#556FE1

secondary

#E3DAAE

accent

#AF14D2

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #556FE1

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

Preview Lab → · Contrast checker → · Palette generator →