#1B346B#1B346B

#1B346B is a dark, moderate blue. Relative luminance 0.038; OKLCH L 33.9% C 0.101 H 263.6°. Best body text is #FFFFFF at 12.00:1 contrast (WCAG AA passes).

Color values

HEX	#1B346B
RGB	rgb(27, 52, 107)
HSL	hsl(221, 60%, 26%)
HSV	hsv(221, 75%, 42%)
CMYK	cmyk(74.8%, 51.4%, 0%, 58%)
CIE-LAB	lab(22.83, 11.25, -34.96)
CIE-LCH	lch(22.83, 36.73, 287.85°)
OKLab	oklab(33.86% -0.0113 -0.1003)
OKLCH	oklch(33.86% 0.101 263.6)
XYZ	xyz(4.3329, 3.7501, 14.4026)
Luminance	0.0375 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B346B #6B521B

analogous

#1B5C6B #1B346B #2A1B6B

triadic

#1B346B #6B1B34 #346B1B

tetradic

#1B346B #6B1B5C #6B521B #1B6B2A

square

#1B346B #6B1B5C #6B521B #1B6B2A

split-complementary

#1B346B #6B2A1B #5C6B1B

monochromatic

#060C18 #0F1C3A #1B346B #274C9C #3564CC

Accessibility & contrast

On white

12.00

#1B346B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#1B346B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B346B

12.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B346B	#FFFFFF	#000000	##FFFFFF
##1B346B	1.00	12.00	1.75	12.00
#FFFFFF	12.00	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#153A6D

Deuteranopia (green-blind)

#00336A

Tritanopia (blue-blind)

#00414A

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1b346b;
/* rgb */ color: rgb(27, 52, 107);
/* oklch */ color: oklch(33.9% 0.101 263.6);

Tailwind

colors: {
  custom: {
    50: '#636b96',
    500: '#1b346b',
    950: '#000000',
  },
}

SCSS

$custom: #1b346b;
$custom-light: #636b96;
$custom-dark: #000000;

JSON

{
  "hex": "#1b346b",
  "rgb": {
    "r": 27,
    "g": 52,
    "b": 107
  },
  "hsl": {
    "h": 221.25,
    "s": 59.701,
    "l": 26.275
  },
  "oklch": {
    "l": 0.33858,
    "c": 0.10096,
    "h": 263.6
  },
  "luminance": 0.03751
}

Semantic roles & 50–950 ramp

primary

#1B346B

secondary

#A08342

accent

#B245E3

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #1B346B

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

Preview Lab → · Contrast checker → · Palette generator →