#1B3264#1B3264

#1B3264 is a dark, moderate blue. Relative luminance 0.034; OKLCH L 32.8% C 0.093 H 263.5°. Best body text is #FFFFFF at 12.45:1 contrast (WCAG AA passes).

Color values

HEX	#1B3264
RGB	rgb(27, 50, 100)
HSL	hsl(221, 57%, 25%)
HSV	hsv(221, 73%, 39%)
CMYK	cmyk(73%, 50%, 0%, 60.8%)
CIE-LAB	lab(21.70, 9.82, -32.23)
CIE-LCH	lch(21.70, 33.69, 286.95°)
OKLab	oklab(32.84% -0.0104 -0.0923)
OKLCH	oklch(32.84% 0.093 263.5)
XYZ	xyz(3.8920, 3.4339, 12.5118)
Luminance	0.0343 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B3264 #644D1B

analogous

#1B5664 #1B3264 #291B64

triadic

#1B3264 #641B32 #32641B

tetradic

#1B3264 #641B56 #644D1B #1B6429

square

#1B3264 #641B56 #644D1B #1B6429

split-complementary

#1B3264 #64291B #56641B

monochromatic

#070C18 #0E1A34 #1B3264 #284A94 #3562C4

Accessibility & contrast

On white

12.45

#1B3264 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#1B3264 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B3264

12.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B3264	#FFFFFF	#000000	##FFFFFF
##1B3264	1.00	12.45	1.69	12.45
#FFFFFF	12.45	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#183866

Deuteranopia (green-blind)

#083163

Tritanopia (blue-blind)

#003E46

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1b3264;
/* rgb */ color: rgb(27, 50, 100);
/* oklch */ color: oklch(32.8% 0.093 263.5);

Tailwind

colors: {
  custom: {
    50: '#616990',
    500: '#1b3264',
    950: '#000000',
  },
}

SCSS

$custom: #1b3264;
$custom-light: #616990;
$custom-dark: #000000;

JSON

{
  "hex": "#1b3264",
  "rgb": {
    "r": 27,
    "g": 50,
    "b": 100
  },
  "hsl": {
    "h": 221.096,
    "s": 57.48,
    "l": 24.902
  },
  "oklch": {
    "l": 0.32837,
    "c": 0.09291,
    "h": 263.5
  },
  "luminance": 0.03434
}

Semantic roles & 50–950 ramp

primary

#1B3264

secondary

#997E41

accent

#B047E1

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#05060C

muted

#7A7A7D

Preview Lab

Preview with #1B3264

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

Preview Lab → · Contrast checker → · Palette generator →