#1B386A#1B386A

#1B386A is a dark, moderate blue. Relative luminance 0.041; OKLCH L 34.7% C 0.094 H 260.5°. Best body text is #FFFFFF at 11.54:1 contrast (WCAG AA passes).

Color values

HEX	#1B386A
RGB	rgb(27, 56, 106)
HSL	hsl(218, 59%, 26%)
HSV	hsv(218, 75%, 42%)
CMYK	cmyk(74.5%, 47.2%, 0%, 58.4%)
CIE-LAB	lab(24.00, 8.00, -32.42)
CIE-LCH	lch(24.00, 33.40, 283.87°)
OKLab	oklab(34.74% -0.0155 -0.0928)
OKLCH	oklch(34.74% 0.094 260.5)
XYZ	xyz(4.4668, 4.1015, 14.1891)
Luminance	0.0410 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B386A #6A4D1B

analogous

#1B5F6A #1B386A #261B6A

triadic

#1B386A #6A1B38 #386A1B

tetradic

#1B386A #6A1B5F #6A4D1B #1B6A26

square

#1B386A #6A1B5F #6A4D1B #1B6A26

split-complementary

#1B386A #6A261B #5F6A1B

monochromatic

#060D18 #0F1E39 #1B386A #27529B #346CCB

Accessibility & contrast

On white

11.54

#1B386A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#1B386A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B386A

11.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B386A	#FFFFFF	#000000	##FFFFFF
##1B386A	1.00	11.54	1.82	11.54
#FFFFFF	11.54	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F3D6C

Deuteranopia (green-blind)

#103669

Tritanopia (blue-blind)

#00444B

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1b386a;
/* rgb */ color: rgb(27, 56, 106);
/* oklch */ color: oklch(34.7% 0.094 260.5);

Tailwind

colors: {
  custom: {
    50: '#626e95',
    500: '#1b386a',
    950: '#000000',
  },
}

SCSS

$custom: #1b386a;
$custom-light: #626e95;
$custom-dark: #000000;

JSON

{
  "hex": "#1b386a",
  "rgb": {
    "r": 27,
    "g": 56,
    "b": 106
  },
  "hsl": {
    "h": 217.975,
    "s": 59.398,
    "l": 26.078
  },
  "oklch": {
    "l": 0.34739,
    "c": 0.09408,
    "h": 260.5
  },
  "luminance": 0.04102
}

Semantic roles & 50–950 ramp

primary

#1B386A

secondary

#9F7D42

accent

#A945E3

background

#F6F6F9

surface

#EBEBF1

border

#C6C6CB

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #1B386A

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

Preview Lab → · Contrast checker → · Palette generator →