#1559CA#1559CA

#1559CA is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.5% C 0.188 H 260.5°. Best body text is #FFFFFF at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#1559CA
RGB	rgb(21, 89, 202)
HSL	hsl(217, 81%, 44%)
HSV	hsv(217, 90%, 79%)
CMYK	cmyk(89.6%, 55.9%, 0%, 20.8%)
CIE-LAB	lab(40.52, 23.79, -64.05)
CIE-LCH	lch(40.52, 68.33, 290.37°)
OKLab	oklab(49.54% -0.0308 -0.1852)
OKLCH	oklch(49.54% 0.188 260.5)
XYZ	xyz(14.5384, 11.5666, 57.3320)
Luminance	0.1157 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1559CA #CA8615

analogous

#15B3CA #1559CA #2C15CA

triadic

#1559CA #CA1559 #59CA15

tetradic

#1559CA #CA15B3 #CA8615 #15CA2C

square

#1559CA #CA15B3 #CA8615 #15CA2C

split-complementary

#1559CA #CA2C15 #B3CA15

monochromatic

#09285B #0F4193 #1559CA #3277EA #6A9CEF

Accessibility & contrast

On white

6.34

#1559CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#1559CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1559CA

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1559CA	#FFFFFF	#000000	##FFFFFF
##1559CA	1.00	6.34	3.31	6.34
#FFFFFF	6.34	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068CE

Deuteranopia (green-blind)

#0058C8

Tritanopia (blue-blind)

#007689

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #1559ca;
/* rgb */ color: rgb(21, 89, 202);
/* oklch */ color: oklch(49.5% 0.188 260.5);

Tailwind

colors: {
  custom: {
    50: '#7887db',
    500: '#1559ca',
    950: '#000000',
  },
}

SCSS

$custom: #1559ca;
$custom-light: #7887db;
$custom-dark: #000000;

JSON

{
  "hex": "#1559ca",
  "rgb": {
    "r": 21,
    "g": 89,
    "b": 202
  },
  "hsl": {
    "h": 217.459,
    "s": 81.166,
    "l": 43.725
  },
  "oklch": {
    "l": 0.49539,
    "c": 0.18776,
    "h": 260.5
  },
  "luminance": 0.11568
}

Semantic roles & 50–950 ramp

primary

#1559CA

secondary

#D5AB66

accent

#AD30F8

background

#F8F8FD

surface

#EFEFFB

border

#CACAD4

text

#0B0B15

muted

#7C7C83

Preview Lab

Preview with #1559CA

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

Preview Lab → · Contrast checker → · Palette generator →