#153583#153583

#153583 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 35.9% C 0.137 H 263.9°. Best body text is #FFFFFF at 11.24:1 contrast (WCAG AA passes).

Color values

HEX	#153583
RGB	rgb(21, 53, 131)
HSL	hsl(223, 72%, 30%)
HSV	hsv(223, 84%, 51%)
CMYK	cmyk(84%, 59.5%, 0%, 48.6%)
CIE-LAB	lab(24.78, 19.69, -47.07)
CIE-LCH	lch(24.78, 51.02, 292.71°)
OKLab	oklab(35.87% -0.0146 -0.136)
OKLCH	oklch(35.87% 0.137 263.9)
XYZ	xyz(5.6776, 4.3436, 22.0075)
Luminance	0.0434 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153583 #836315

analogous

#156C83 #153583 #2C1583

triadic

#153583 #831535 #358315

tetradic

#153583 #83156C #836315 #15832C

square

#153583 #83156C #836315 #15832C

split-complementary

#153583 #832C15 #6C8315

monochromatic

#040B1A #0D204E #153583 #1D4AB8 #3466DE

Accessibility & contrast

On white

11.24

#153583 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#153583 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153583

11.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153583	#FFFFFF	#000000	##FFFFFF
##153583	1.00	11.24	1.87	11.24
#FFFFFF	11.24	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004086

Deuteranopia (green-blind)

#003681

Tritanopia (blue-blind)

#004956

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #153583;
/* rgb */ color: rgb(21, 53, 131);
/* oklch */ color: oklch(35.9% 0.137 263.9);

Tailwind

colors: {
  custom: {
    50: '#676ba8',
    500: '#153583',
    950: '#000000',
  },
}

SCSS

$custom: #153583;
$custom-light: #676ba8;
$custom-dark: #000000;

JSON

{
  "hex": "#153583",
  "rgb": {
    "r": 21,
    "g": 53,
    "b": 131
  },
  "hsl": {
    "h": 222.545,
    "s": 72.368,
    "l": 29.804
  },
  "oklch": {
    "l": 0.35866,
    "c": 0.1368,
    "h": 263.9
  },
  "luminance": 0.04344
}

Semantic roles & 50–950 ramp

primary

#153583

secondary

#B8943C

accent

#BA39EF

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #153583

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

Preview Lab → · Contrast checker → · Palette generator →