#556DEE#556DEE

#556DEE is a mid, vivid blue. Relative luminance 0.190; OKLCH L 58.7% C 0.195 H 271.2°. Best body text is #000000 at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#556DEE
RGB	rgb(85, 109, 238)
HSL	hsl(231, 82%, 63%)
HSV	hsv(231, 64%, 93%)
CMYK	cmyk(64.3%, 54.2%, 0%, 6.7%)
CIE-LAB	lab(50.73, 31.18, -67.82)
CIE-LCH	lch(50.73, 74.65, 294.69°)
OKLab	oklab(58.72% 0.0041 -0.1949)
OKLCH	oklch(58.72% 0.195 271.2)
XYZ	xyz(24.6424, 19.0394, 83.2487)
Luminance	0.1904 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556DEE #EED655

analogous

#55B9EE #556DEE #8955EE

triadic

#556DEE #EE556D #6DEE55

tetradic

#556DEE #EE55B9 #EED655 #55EE89

square

#556DEE #EE55B9 #EED655 #55EE89

split-complementary

#556DEE #EE8955 #B9EE55

monochromatic

#122CB6 #1D3DE8 #556DEE #8D9DF4 #C4CDF9

Accessibility & contrast

On white

4.37

#556DEE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.81

#556DEE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #556DEE

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556DEE	#FFFFFF	#000000	##000000
##556DEE	1.00	4.37	4.81	4.81
#FFFFFF	4.37	1.00	21.00	21.00
#000000	4.81	21.00	1.00	1.00
##000000	4.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0080F2

Deuteranopia (green-blind)

#0072EB

Tritanopia (blue-blind)

#008CA3

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #556dee;
/* rgb */ color: rgb(85, 109, 238);
/* oklch */ color: oklch(58.7% 0.195 271.2);

Tailwind

colors: {
  custom: {
    50: '#9496f4',
    500: '#556dee',
    950: '#000000',
  },
}

SCSS

$custom: #556dee;
$custom-light: #9496f4;
$custom-dark: #000000;

JSON

{
  "hex": "#556dee",
  "rgb": {
    "r": 85,
    "g": 109,
    "b": 238
  },
  "hsl": {
    "h": 230.588,
    "s": 81.818,
    "l": 63.333
  },
  "oklch": {
    "l": 0.58721,
    "c": 0.19497,
    "h": 271.2
  },
  "luminance": 0.19042
}

Semantic roles & 50–950 ramp

primary

#556DEE

secondary

#EBE2B4

accent

#BC07DE

background

#F9F9FF

surface

#F2F2FE

border

#CCCCD6

text

#0E0D17

muted

#7E7E85

Preview Lab

Preview with #556DEE

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

Preview Lab → · Contrast checker → · Palette generator →