#556ECA#556ECA

#556ECA is a mid, vivid blue. Relative luminance 0.173; OKLCH L 56.4% C 0.145 H 269.8°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#556ECA
RGB	rgb(85, 110, 202)
HSL	hsl(227, 52%, 56%)
HSV	hsv(227, 58%, 79%)
CMYK	cmyk(57.9%, 45.5%, 0%, 20.8%)
CIE-LAB	lab(48.69, 18.44, -50.74)
CIE-LCH	lch(48.69, 53.98, 289.98°)
OKLab	oklab(56.44% -0.0004 -0.1446)
OKLCH	oklch(56.44% 0.145 269.8)
XYZ	xyz(19.9794, 17.3459, 58.1609)
Luminance	0.1735 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556ECA #CAB155

analogous

#55A9CA #556ECA #7755CA

triadic

#556ECA #CA556E #6ECA55

tetradic

#556ECA #CA55A9 #CAB155 #55CA77

square

#556ECA #CA55A9 #CAB155 #55CA77

split-complementary

#556ECA #CA7755 #A9CA55

monochromatic

#273A7D #364FAC #556ECA #8496D9 #B2BEE7

Accessibility & contrast

On white

4.70

#556ECA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#556ECA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556ECA

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556ECA	#FFFFFF	#000000	##FFFFFF
##556ECA	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4379CD

Deuteranopia (green-blind)

#336FC8

Tritanopia (blue-blind)

#008392

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #556eca;
/* rgb */ color: rgb(85, 110, 202);
/* oklch */ color: oklch(56.4% 0.145 269.8);

Tailwind

colors: {
  custom: {
    50: '#8e97db',
    500: '#556eca',
    950: '#000000',
  },
}

SCSS

$custom: #556eca;
$custom-light: #8e97db;
$custom-dark: #000000;

JSON

{
  "hex": "#556eca",
  "rgb": {
    "r": 85,
    "g": 110,
    "b": 202
  },
  "hsl": {
    "h": 227.179,
    "s": 52.466,
    "l": 56.275
  },
  "oklch": {
    "l": 0.56442,
    "c": 0.14465,
    "h": 269.8
  },
  "luminance": 0.17347
}

Semantic roles & 50–950 ramp

primary

#556ECA

secondary

#D5CBA5

accent

#BD4CDC

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #556ECA

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

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