#153783#153783

#153783 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.3% C 0.134 H 263.2°. Best body text is #FFFFFF at 11.02:1 contrast (WCAG AA passes).

Color values

HEX	#153783
RGB	rgb(21, 55, 131)
HSL	hsl(221, 72%, 30%)
HSV	hsv(221, 84%, 51%)
CMYK	cmyk(84%, 58%, 0%, 48.6%)
CIE-LAB	lab(25.35, 18.28, -46.13)
CIE-LCH	lch(25.35, 49.62, 291.62°)
OKLab	oklab(36.3% -0.016 -0.1332)
OKLCH	oklch(36.3% 0.134 263.2)
XYZ	xyz(5.7707, 4.5298, 22.0385)
Luminance	0.0453 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153783 #836115

analogous

#156E83 #153783 #2A1583

triadic

#153783 #831537 #378315

tetradic

#153783 #83156E #836115 #15832A

square

#153783 #83156E #836115 #15832A

split-complementary

#153783 #832A15 #6E8315

monochromatic

#040B1A #0D214E #153783 #1D4DB8 #3469DE

Accessibility & contrast

On white

11.02

#153783 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#153783 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153783

11.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153783	#FFFFFF	#000000	##FFFFFF
##153783	1.00	11.02	1.91	11.02
#FFFFFF	11.02	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004186

Deuteranopia (green-blind)

#003782

Tritanopia (blue-blind)

#004A57

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #153783;
/* rgb */ color: rgb(21, 55, 131);
/* oklch */ color: oklch(36.3% 0.134 263.2);

Tailwind

colors: {
  custom: {
    50: '#676da8',
    500: '#153783',
    950: '#000000',
  },
}

SCSS

$custom: #153783;
$custom-light: #676da8;
$custom-dark: #000000;

JSON

{
  "hex": "#153783",
  "rgb": {
    "r": 21,
    "g": 55,
    "b": 131
  },
  "hsl": {
    "h": 221.455,
    "s": 72.368,
    "l": 29.804
  },
  "oklch": {
    "l": 0.36299,
    "c": 0.13418,
    "h": 263.2
  },
  "luminance": 0.0453
}

Semantic roles & 50–950 ramp

primary

#153783

secondary

#B8913C

accent

#B739EF

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #153783

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

Preview Lab → · Contrast checker → · Palette generator →