#1B4293#1B4293

#1B4293 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.3% C 0.141 H 262.5°. Best body text is #FFFFFF at 9.34:1 contrast (WCAG AA passes).

Color values

HEX	#1B4293
RGB	rgb(27, 66, 147)
HSL	hsl(221, 69%, 34%)
HSV	hsv(221, 82%, 58%)
CMYK	cmyk(81.6%, 55.1%, 0%, 42.4%)
CIE-LAB	lab(30.00, 17.75, -48.48)
CIE-LCH	lch(30.00, 51.62, 290.11°)
OKLab	oklab(40.27% -0.0183 -0.1398)
OKLCH	oklch(40.27% 0.141 262.5)
XYZ	xyz(7.6648, 6.2351, 28.3976)
Luminance	0.0624 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4293 #936C1B

analogous

#1B7E93 #1B4293 #301B93

triadic

#1B4293 #931B42 #42931B

tetradic

#1B4293 #931B7E #936C1B #1B9330

square

#1B4293 #931B7E #936C1B #1B9330

split-complementary

#1B4293 #93301B #7E931B

monochromatic

#08142C #122B5F #1B4293 #2459C7 #4B7ADE

Accessibility & contrast

On white

9.34

#1B4293 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#1B4293 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4293

9.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4293	#FFFFFF	#000000	##FFFFFF
##1B4293	1.00	9.34	2.25	9.34
#FFFFFF	9.34	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C96

Deuteranopia (green-blind)

#004191

Tritanopia (blue-blind)

#005664

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1b4293;
/* rgb */ color: rgb(27, 66, 147);
/* oklch */ color: oklch(40.3% 0.141 262.5);

Tailwind

colors: {
  custom: {
    50: '#6c75b3',
    500: '#1b4293',
    950: '#000000',
  },
}

SCSS

$custom: #1b4293;
$custom-light: #6c75b3;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4293",
  "rgb": {
    "r": 27,
    "g": 66,
    "b": 147
  },
  "hsl": {
    "h": 220.5,
    "s": 68.966,
    "l": 34.118
  },
  "oklch": {
    "l": 0.40272,
    "c": 0.141,
    "h": 262.5
  },
  "luminance": 0.06236
}

Semantic roles & 50–950 ramp

primary

#1B4293

secondary

#C09A4A

accent

#B33CEC

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1B4293

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

Preview Lab → · Contrast checker → · Palette generator →