#1B147D#1B147D

#1B147D is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.8% C 0.164 H 273.0°. Best body text is #FFFFFF at 14.56:1 contrast (WCAG AA passes).

Color values

HEX	#1B147D
RGB	rgb(27, 20, 125)
HSL	hsl(244, 72%, 28%)
HSV	hsv(244, 84%, 49%)
CMYK	cmyk(78.4%, 84%, 0%, 51%)
CIE-LAB	lab(16.57, 39.18, -56.76)
CIE-LCH	lch(16.57, 68.97, 304.62°)
OKLab	oklab(29.8% 0.0086 -0.1642)
OKLCH	oklch(29.8% 0.164 273)
XYZ	xyz(4.4026, 2.2135, 19.5933)
Luminance	0.0221 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B147D #767D14

analogous

#14417D #1B147D #4F147D

triadic

#1B147D #7D1B14 #147D1B

tetradic

#1B147D #7D1441 #767D14 #147D4F

square

#1B147D #7D1441 #767D14 #147D4F

split-complementary

#1B147D #7D4F14 #417D14

monochromatic

#06041A #100C48 #1B147D #261CB2 #3A2EDE

Accessibility & contrast

On white

14.56

#1B147D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#1B147D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B147D

14.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B147D	#FFFFFF	#000000	##FFFFFF
##1B147D	1.00	14.56	1.44	14.56
#FFFFFF	14.56	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E80

Deuteranopia (green-blind)

#00247B

Tritanopia (blue-blind)

#003549

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1b147d;
/* rgb */ color: rgb(27, 20, 125);
/* oklch */ color: oklch(29.8% 0.164 273.0);

Tailwind

colors: {
  custom: {
    50: '#6b55a4',
    500: '#1b147d',
    950: '#000000',
  },
}

SCSS

$custom: #1b147d;
$custom-light: #6b55a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b147d",
  "rgb": {
    "r": 27,
    "g": 20,
    "b": 125
  },
  "hsl": {
    "h": 244,
    "s": 72.414,
    "l": 28.431
  },
  "oklch": {
    "l": 0.29804,
    "c": 0.16442,
    "h": 273
  },
  "luminance": 0.02214
}

Semantic roles & 50–950 ramp

primary

#1B147D

secondary

#AAB23A

accent

#EF39E3

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1B147D

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

Preview Lab → · Contrast checker → · Palette generator →