#1B346A#1B346A

#1B346A is a dark, moderate blue. Relative luminance 0.037; OKLCH L 33.8% C 0.099 H 263.4°. Best body text is #FFFFFF at 12.03:1 contrast (WCAG AA passes).

Color values

HEX	#1B346A
RGB	rgb(27, 52, 106)
HSL	hsl(221, 59%, 26%)
HSV	hsv(221, 75%, 42%)
CMYK	cmyk(74.5%, 50.9%, 0%, 58.4%)
CIE-LAB	lab(22.76, 10.84, -34.43)
CIE-LCH	lch(22.76, 36.10, 287.48°)
OKLab	oklab(33.78% -0.0115 -0.0988)
OKLCH	oklch(33.78% 0.099 263.4)
XYZ	xyz(4.2806, 3.7292, 14.1271)
Luminance	0.0373 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B346A #6A511B

analogous

#1B5B6A #1B346A #291B6A

triadic

#1B346A #6A1B34 #346A1B

tetradic

#1B346A #6A1B5B #6A511B #1B6A29

square

#1B346A #6A1B5B #6A511B #1B6A29

split-complementary

#1B346A #6A291B #5B6A1B

monochromatic

#060C18 #0F1C39 #1B346A #274C9B #3464CB

Accessibility & contrast

On white

12.03

#1B346A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#1B346A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B346A

12.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B346A	#FFFFFF	#000000	##FFFFFF
##1B346A	1.00	12.03	1.75	12.03
#FFFFFF	12.03	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#163A6C

Deuteranopia (green-blind)

#023369

Tritanopia (blue-blind)

#00414A

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1b346a;
/* rgb */ color: rgb(27, 52, 106);
/* oklch */ color: oklch(33.8% 0.099 263.4);

Tailwind

colors: {
  custom: {
    50: '#636b95',
    500: '#1b346a',
    950: '#000000',
  },
}

SCSS

$custom: #1b346a;
$custom-light: #636b95;
$custom-dark: #000000;

JSON

{
  "hex": "#1b346a",
  "rgb": {
    "r": 27,
    "g": 52,
    "b": 106
  },
  "hsl": {
    "h": 221.013,
    "s": 59.398,
    "l": 26.078
  },
  "oklch": {
    "l": 0.3378,
    "c": 0.09943,
    "h": 263.4
  },
  "luminance": 0.0373
}

Semantic roles & 50–950 ramp

primary

#1B346A

secondary

#9F8242

accent

#B145E3

background

#F6F6F9

surface

#EBEBF1

border

#C6C6CB

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #1B346A

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

Preview Lab → · Contrast checker → · Palette generator →