#556BE3#556BE3

#556BE3 is a mid, vivid blue. Relative luminance 0.180; OKLCH L 57.5% C 0.183 H 271.6°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#556BE3
RGB	rgb(85, 107, 227)
HSL	hsl(231, 72%, 61%)
HSV	hsv(231, 63%, 89%)
CMYK	cmyk(62.6%, 52.9%, 0%, 11%)
CIE-LAB	lab(49.48, 28.70, -63.67)
CIE-LCH	lch(49.48, 69.84, 294.27°)
OKLab	oklab(57.55% 0.0053 -0.1827)
OKLCH	oklch(57.55% 0.183 271.6)
XYZ	xyz(22.8645, 17.9908, 74.9258)
Luminance	0.1799 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556BE3 #E3CD55

analogous

#55B2E3 #556BE3 #8655E3

triadic

#556BE3 #E3556B #6BE355

tetradic

#556BE3 #E355B2 #E3CD55 #55E386

square

#556BE3 #E355B2 #E3CD55 #55E386

split-complementary

#556BE3 #E38655 #B2E355

monochromatic

#1B30A3 #233FD7 #556BE3 #8A99EC #BEC6F4

Accessibility & contrast

On white

4.57

#556BE3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#556BE3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #556BE3

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556BE3	#FFFFFF	#000000	##000000
##556BE3	1.00	4.57	4.60	4.60
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B7CE7

Deuteranopia (green-blind)

#0070E1

Tritanopia (blue-blind)

#00879D

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #556be3;
/* rgb */ color: rgb(85, 107, 227);
/* oklch */ color: oklch(57.5% 0.183 271.6);

Tailwind

colors: {
  custom: {
    50: '#9295ed',
    500: '#556be3',
    950: '#000000',
  },
}

SCSS

$custom: #556be3;
$custom-light: #9295ed;
$custom-dark: #000000;

JSON

{
  "hex": "#556be3",
  "rgb": {
    "r": 85,
    "g": 107,
    "b": 227
  },
  "hsl": {
    "h": 230.704,
    "s": 71.717,
    "l": 61.176
  },
  "oklch": {
    "l": 0.57547,
    "c": 0.1828,
    "h": 271.6
  },
  "luminance": 0.17993
}

Semantic roles & 50–950 ramp

primary

#556BE3

secondary

#E5DCAF

accent

#B612D4

background

#F9F9FE

surface

#F2F1FD

border

#CCCBD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #556BE3

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

Preview Lab → · Contrast checker → · Palette generator →