#1556CA#1556CA

#1556CA is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.9% C 0.191 H 261.2°. Best body text is #FFFFFF at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#1556CA
RGB	rgb(21, 86, 202)
HSL	hsl(218, 81%, 44%)
HSV	hsv(218, 90%, 79%)
CMYK	cmyk(89.6%, 57.4%, 0%, 20.8%)
CIE-LAB	lab(39.71, 25.76, -65.37)
CIE-LCH	lch(39.71, 70.26, 291.51°)
OKLab	oklab(48.93% -0.0292 -0.1891)
OKLCH	oklch(48.93% 0.191 261.2)
XYZ	xyz(14.2938, 11.0774, 57.2504)
Luminance	0.1108 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1556CA #CA8915

analogous

#15B0CA #1556CA #2E15CA

triadic

#1556CA #CA1556 #56CA15

tetradic

#1556CA #CA15B0 #CA8915 #15CA2E

square

#1556CA #CA15B0 #CA8915 #15CA2E

split-complementary

#1556CA #CA2E15 #B0CA15

monochromatic

#09275B #0F3E93 #1556CA #3274EA #6A9AEF

Accessibility & contrast

On white

6.53

#1556CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#1556CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1556CA

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1556CA	#FFFFFF	#000000	##FFFFFF
##1556CA	1.00	6.53	3.22	6.53
#FFFFFF	6.53	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066CE

Deuteranopia (green-blind)

#0056C8

Tritanopia (blue-blind)

#007487

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #1556ca;
/* rgb */ color: rgb(21, 86, 202);
/* oklch */ color: oklch(48.9% 0.191 261.2);

Tailwind

colors: {
  custom: {
    50: '#7884db',
    500: '#1556ca',
    950: '#000000',
  },
}

SCSS

$custom: #1556ca;
$custom-light: #7884db;
$custom-dark: #000000;

JSON

{
  "hex": "#1556ca",
  "rgb": {
    "r": 21,
    "g": 86,
    "b": 202
  },
  "hsl": {
    "h": 218.453,
    "s": 81.166,
    "l": 43.725
  },
  "oklch": {
    "l": 0.48928,
    "c": 0.19138,
    "h": 261.2
  },
  "luminance": 0.11079
}

Semantic roles & 50–950 ramp

primary

#1556CA

secondary

#D5AD66

accent

#B030F8

background

#F8F8FD

surface

#EFEFFB

border

#CACAD4

text

#0B0A15

muted

#7C7C83

Preview Lab

Preview with #1556CA

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

Preview Lab → · Contrast checker → · Palette generator →