#556FDA#556FDA

#556FDA is a mid, vivid blue. Relative luminance 0.184; OKLCH L 57.7% C 0.166 H 270.2°. Best body text is #000000 at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#556FDA
RGB	rgb(85, 111, 218)
HSL	hsl(228, 64%, 59%)
HSV	hsv(228, 61%, 85%)
CMYK	cmyk(61%, 49.1%, 0%, 14.5%)
CIE-LAB	lab(49.93, 23.19, -57.86)
CIE-LCH	lch(49.93, 62.34, 291.84°)
OKLab	oklab(57.7% 0.0007 -0.1656)
OKLCH	oklch(57.7% 0.166 270.2)
XYZ	xyz(22.0814, 18.3603, 68.6963)
Luminance	0.1836 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556FDA #DAC055

analogous

#55B1DA #556FDA #7E55DA

triadic

#556FDA #DA556F #6FDA55

tetradic

#556FDA #DA55B1 #DAC055 #55DA7E

square

#556FDA #DA55B1 #DAC055 #55DA7E

split-complementary

#556FDA #DA7E55 #B1DA55

monochromatic

#203794 #2B4AC7 #556FDA #879AE5 #BAC4F0

Accessibility & contrast

On white

4.49

#556FDA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.67

#556FDA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #556FDA

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556FDA	#FFFFFF	#000000	##000000
##556FDA	1.00	4.49	4.67	4.67
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.67	21.00	1.00	1.00
##000000	4.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#367DDE

Deuteranopia (green-blind)

#1A71D8

Tritanopia (blue-blind)

#00889A

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #556fda;
/* rgb */ color: rgb(85, 111, 218);
/* oklch */ color: oklch(57.7% 0.166 270.2);

Tailwind

colors: {
  custom: {
    50: '#9198e6',
    500: '#556fda',
    950: '#000000',
  },
}

SCSS

$custom: #556fda;
$custom-light: #9198e6;
$custom-dark: #000000;

JSON

{
  "hex": "#556fda",
  "rgb": {
    "r": 85,
    "g": 111,
    "b": 218
  },
  "hsl": {
    "h": 228.271,
    "s": 64.251,
    "l": 59.412
  },
  "oklch": {
    "l": 0.57697,
    "c": 0.16559,
    "h": 270.2
  },
  "luminance": 0.18362
}

Semantic roles & 50–950 ramp

primary

#556FDA

secondary

#DFD5AB

accent

#C741E7

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #556FDA

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

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