#556BDF#556BDF

#556BDF is a mid, vivid blue. Relative luminance 0.178; OKLCH L 57.3% C 0.177 H 271.6°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#556BDF
RGB	rgb(85, 107, 223)
HSL	hsl(230, 68%, 60%)
HSV	hsv(230, 62%, 87%)
CMYK	cmyk(61.9%, 52%, 0%, 12.5%)
CIE-LAB	lab(49.22, 27.35, -61.84)
CIE-LCH	lch(49.22, 67.62, 293.86°)
OKLab	oklab(57.26% 0.005 -0.1773)
OKLCH	oklch(57.26% 0.177 271.6)
XYZ	xyz(22.3188, 17.7725, 72.0520)
Luminance	0.1777 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556BDF #DFC955

analogous

#55B0DF #556BDF #8455DF

triadic

#556BDF #DF556B #6BDF55

tetradic

#556BDF #DF55B0 #DFC955 #55DF84

square

#556BDF #DF55B0 #DFC955 #55DF84

split-complementary

#556BDF #DF8455 #B0DF55

monochromatic

#1D329C #2742D0 #556BDF #8998E9 #BCC5F2

Accessibility & contrast

On white

4.61

#556BDF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#556BDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #556BDF

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556BDF	#FFFFFF	#000000	##FFFFFF
##556BDF	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)

#247BE3

Deuteranopia (green-blind)

#006FDD

Tritanopia (blue-blind)

#00869B

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #556bdf;
/* rgb */ color: rgb(85, 107, 223);
/* oklch */ color: oklch(57.3% 0.177 271.6);

Tailwind

colors: {
  custom: {
    50: '#9295ea',
    500: '#556bdf',
    950: '#000000',
  },
}

SCSS

$custom: #556bdf;
$custom-light: #9295ea;
$custom-dark: #000000;

JSON

{
  "hex": "#556bdf",
  "rgb": {
    "r": 85,
    "g": 107,
    "b": 223
  },
  "hsl": {
    "h": 230.435,
    "s": 68.317,
    "l": 60.392
  },
  "oklch": {
    "l": 0.57262,
    "c": 0.17741,
    "h": 271.6
  },
  "luminance": 0.17774
}

Semantic roles & 50–950 ramp

primary

#556BDF

secondary

#E2DAAE

accent

#B215D0

background

#F9F9FE

surface

#F2F1FD

border

#CCCBD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #556BDF

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

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