#556CE1#556CE1

#556CE1 is a mid, vivid blue. Relative luminance 0.181; OKLCH L 57.6% C 0.179 H 271.3°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#556CE1
RGB	rgb(85, 108, 225)
HSL	hsl(230, 70%, 61%)
HSV	hsv(230, 62%, 88%)
CMYK	cmyk(62.2%, 52%, 0%, 11.8%)
CIE-LAB	lab(49.61, 27.41, -62.34)
CIE-LCH	lch(49.61, 68.10, 293.73°)
OKLab	oklab(57.6% 0.0042 -0.1788)
OKLCH	oklch(57.6% 0.179 271.3)
XYZ	xyz(22.6949, 18.0907, 73.5154)
Luminance	0.1809 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556CE1 #E1CA55

analogous

#55B2E1 #556CE1 #8455E1

triadic

#556CE1 #E1556C #6CE155

tetradic

#556CE1 #E155B2 #E1CA55 #55E184

square

#556CE1 #E155B2 #E1CA55 #55E184

split-complementary

#556CE1 #E18455 #B2E155

monochromatic

#1C329F #2542D3 #556CE1 #8999EA #BDC6F3

Accessibility & contrast

On white

4.55

#556CE1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#556CE1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #556CE1

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556CE1	#FFFFFF	#000000	##000000
##556CE1	1.00	4.55	4.62	4.62
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#247CE5

Deuteranopia (green-blind)

#0070DF

Tritanopia (blue-blind)

#00879C

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #556ce1;
/* rgb */ color: rgb(85, 108, 225);
/* oklch */ color: oklch(57.6% 0.179 271.3);

Tailwind

colors: {
  custom: {
    50: '#9295eb',
    500: '#556ce1',
    950: '#000000',
  },
}

SCSS

$custom: #556ce1;
$custom-light: #9295eb;
$custom-dark: #000000;

JSON

{
  "hex": "#556ce1",
  "rgb": {
    "r": 85,
    "g": 108,
    "b": 225
  },
  "hsl": {
    "h": 230.143,
    "s": 70,
    "l": 60.784
  },
  "oklch": {
    "l": 0.57595,
    "c": 0.17886,
    "h": 271.3
  },
  "luminance": 0.18093
}

Semantic roles & 50–950 ramp

primary

#556CE1

secondary

#E3DBAE

accent

#B314D2

background

#F9F9FE

surface

#F2F1FD

border

#CCCBD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #556CE1

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

Preview Lab → · Contrast checker → · Palette generator →