#556EEB#556EEB

#556EEB is a mid, vivid blue. Relative luminance 0.191; OKLCH L 58.7% C 0.190 H 270.9°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#556EEB
RGB	rgb(85, 110, 235)
HSL	hsl(230, 79%, 63%)
HSV	hsv(230, 64%, 92%)
CMYK	cmyk(63.8%, 53.2%, 0%, 7.8%)
CIE-LAB	lab(50.78, 29.55, -66.07)
CIE-LCH	lch(50.78, 72.38, 294.10°)
OKLab	oklab(58.69% 0.003 -0.1897)
OKLCH	oklch(58.69% 0.19 270.9)
XYZ	xyz(24.3126, 19.0792, 80.9826)
Luminance	0.1908 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556EEB #EBD255

analogous

#55B9EB #556EEB #8755EB

triadic

#556EEB #EB556E #6EEB55

tetradic

#556EEB #EB55B9 #EBD255 #55EB87

square

#556EEB #EB55B9 #EBD255 #55EB87

split-complementary

#556EEB #EB8755 #B9EB55

monochromatic

#152FB1 #1E3FE5 #556EEB #8C9DF1 #C3CBF8

Accessibility & contrast

On white

4.36

#556EEB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#556EEB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #556EEB

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556EEB	#FFFFFF	#000000	##000000
##556EEB	1.00	4.36	4.82	4.82
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1680EF

Deuteranopia (green-blind)

#0072E8

Tritanopia (blue-blind)

#008CA2

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #556eeb;
/* rgb */ color: rgb(85, 110, 235);
/* oklch */ color: oklch(58.7% 0.190 270.9);

Tailwind

colors: {
  custom: {
    50: '#9397f2',
    500: '#556eeb',
    950: '#000000',
  },
}

SCSS

$custom: #556eeb;
$custom-light: #9397f2;
$custom-dark: #000000;

JSON

{
  "hex": "#556eeb",
  "rgb": {
    "r": 85,
    "g": 110,
    "b": 235
  },
  "hsl": {
    "h": 230,
    "s": 78.947,
    "l": 62.745
  },
  "oklch": {
    "l": 0.58691,
    "c": 0.18977,
    "h": 270.9
  },
  "luminance": 0.19081
}

Semantic roles & 50–950 ramp

primary

#556EEB

secondary

#E9E0B3

accent

#B80ADB

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D17

muted

#7E7E85

Preview Lab

Preview with #556EEB

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

Preview Lab → · Contrast checker → · Palette generator →