#556CDB#556CDB

#556CDB is a mid, vivid blue. Relative luminance 0.178; OKLCH L 57.2% C 0.171 H 271.2°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#556CDB
RGB	rgb(85, 108, 219)
HSL	hsl(230, 65%, 60%)
HSV	hsv(230, 61%, 86%)
CMYK	cmyk(61.2%, 50.7%, 0%, 14.1%)
CIE-LAB	lab(49.21, 25.39, -59.58)
CIE-LCH	lch(49.21, 64.76, 293.08°)
OKLab	oklab(57.18% 0.0037 -0.1707)
OKLCH	oklch(57.18% 0.171 271.2)
XYZ	xyz(21.8908, 17.7691, 69.2803)
Luminance	0.1777 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556CDB #DBC455

analogous

#55AFDB #556CDB #8155DB

triadic

#556CDB #DB556C #6CDB55

tetradic

#556CDB #DB55AF #DBC455 #55DB81

square

#556CDB #DB55AF #DBC455 #55DB81

split-complementary

#556CDB #DB8155 #AFDB55

monochromatic

#203496 #2A46C8 #556CDB #8898E6 #BAC3F0

Accessibility & contrast

On white

4.61

#556CDB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#556CDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #556CDB

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556CDB	#FFFFFF	#000000	##FFFFFF
##556CDB	1.00	4.61	4.55	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D7BDF

Deuteranopia (green-blind)

#036FD9

Tritanopia (blue-blind)

#008699

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #556cdb;
/* rgb */ color: rgb(85, 108, 219);
/* oklch */ color: oklch(57.2% 0.171 271.2);

Tailwind

colors: {
  custom: {
    50: '#9195e7',
    500: '#556cdb',
    950: '#000000',
  },
}

SCSS

$custom: #556cdb;
$custom-light: #9195e7;
$custom-dark: #000000;

JSON

{
  "hex": "#556cdb",
  "rgb": {
    "r": 85,
    "g": 108,
    "b": 219
  },
  "hsl": {
    "h": 229.701,
    "s": 65.049,
    "l": 59.608
  },
  "oklch": {
    "l": 0.57175,
    "c": 0.17072,
    "h": 271.2
  },
  "luminance": 0.17771
}

Semantic roles & 50–950 ramp

primary

#556CDB

secondary

#E0D7AC

accent

#CB40E8

background

#F9F9FE

surface

#F2F1FC

border

#CCCBD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #556CDB

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

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