#153579#153579

#153579 is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.0% C 0.122 H 262.8°. Best body text is #FFFFFF at 11.56:1 contrast (WCAG AA passes).

Color values

HEX	#153579
RGB	rgb(21, 53, 121)
HSL	hsl(221, 70%, 28%)
HSV	hsv(221, 83%, 47%)
CMYK	cmyk(82.6%, 56.2%, 0%, 52.5%)
CIE-LAB	lab(23.95, 15.54, -42.11)
CIE-LCH	lch(23.95, 44.88, 290.26°)
OKLab	oklab(34.99% -0.0154 -0.1214)
OKLCH	oklch(34.99% 0.122 262.8)
XYZ	xyz(5.0323, 4.0855, 18.6088)
Luminance	0.0409 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153579 #795915

analogous

#156779 #153579 #271579

triadic

#153579 #791535 #357915

tetradic

#153579 #791567 #795915 #157927

square

#153579 #791567 #795915 #157927

split-complementary

#153579 #792715 #677915

monochromatic

#050B1A #0C1E45 #153579 #1E4CAD #2E65DB

Accessibility & contrast

On white

11.56

#153579 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#153579 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153579

11.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153579	#FFFFFF	#000000	##FFFFFF
##153579	1.00	11.56	1.82	11.56
#FFFFFF	11.56	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E7B

Deuteranopia (green-blind)

#003578

Tritanopia (blue-blind)

#004651

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #153579;
/* rgb */ color: rgb(21, 53, 121);
/* oklch */ color: oklch(35.0% 0.122 262.8);

Tailwind

colors: {
  custom: {
    50: '#646ba0',
    500: '#153579',
    950: '#000000',
  },
}

SCSS

$custom: #153579;
$custom-light: #646ba0;
$custom-dark: #000000;

JSON

{
  "hex": "#153579",
  "rgb": {
    "r": 21,
    "g": 53,
    "b": 121
  },
  "hsl": {
    "h": 220.8,
    "s": 70.423,
    "l": 27.843
  },
  "oklch": {
    "l": 0.34985,
    "c": 0.12241,
    "h": 262.8
  },
  "luminance": 0.04086
}

Semantic roles & 50–950 ramp

primary

#153579

secondary

#AF8A3B

accent

#B43BED

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060F

muted

#7A7A7E

Preview Lab

Preview with #153579

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

Preview Lab → · Contrast checker → · Palette generator →