#1B3167#1B3167

#1B3167 is a dark, moderate blue. Relative luminance 0.034; OKLCH L 32.8% C 0.099 H 264.8°. Best body text is #FFFFFF at 12.49:1 contrast (WCAG AA passes).

Color values

HEX	#1B3167
RGB	rgb(27, 49, 103)
HSL	hsl(223, 58%, 25%)
HSV	hsv(223, 74%, 40%)
CMYK	cmyk(73.8%, 52.4%, 0%, 59.6%)
CIE-LAB	lab(21.61, 11.77, -34.33)
CIE-LCH	lch(21.61, 36.29, 288.92°)
OKLab	oklab(32.84% -0.009 -0.0985)
OKLCH	oklch(32.84% 0.099 264.8)
XYZ	xyz(3.9976, 3.4085, 13.2766)
Luminance	0.0341 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B3167 #67511B

analogous

#1B5767 #1B3167 #2B1B67

triadic

#1B3167 #671B31 #31671B

tetradic

#1B3167 #671B57 #67511B #1B672B

square

#1B3167 #671B57 #67511B #1B672B

split-complementary

#1B3167 #672B1B #57671B

monochromatic

#060C18 #0E1A37 #1B3167 #284897 #345FC8

Accessibility & contrast

On white

12.49

#1B3167 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1B3167 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B3167

12.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B3167	#FFFFFF	#000000	##FFFFFF
##1B3167	1.00	12.49	1.68	12.49
#FFFFFF	12.49	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#123769

Deuteranopia (green-blind)

#003166

Tritanopia (blue-blind)

#003E47

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1b3167;
/* rgb */ color: rgb(27, 49, 103);
/* oklch */ color: oklch(32.8% 0.099 264.8);

Tailwind

colors: {
  custom: {
    50: '#626893',
    500: '#1b3167',
    950: '#000000',
  },
}

SCSS

$custom: #1b3167;
$custom-light: #626893;
$custom-dark: #000000;

JSON

{
  "hex": "#1b3167",
  "rgb": {
    "r": 27,
    "g": 49,
    "b": 103
  },
  "hsl": {
    "h": 222.632,
    "s": 58.462,
    "l": 25.49
  },
  "oklch": {
    "l": 0.32836,
    "c": 0.09893,
    "h": 264.8
  },
  "luminance": 0.03409
}

Semantic roles & 50–950 ramp

primary

#1B3167

secondary

#9C8242

accent

#B546E2

background

#F6F6F9

surface

#EBEBF1

border

#C6C6CB

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #1B3167

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

Preview Lab → · Contrast checker → · Palette generator →