#1B386D#1B386D

#1B386D is a dark, moderate blue. Relative luminance 0.042; OKLCH L 35.0% C 0.099 H 261.3°. Best body text is #FFFFFF at 11.46:1 contrast (WCAG AA passes).

Color values

HEX	#1B386D
RGB	rgb(27, 56, 109)
HSL	hsl(219, 60%, 27%)
HSV	hsv(219, 75%, 43%)
CMYK	cmyk(75.2%, 48.6%, 0%, 57.3%)
CIE-LAB	lab(24.21, 9.23, -34.02)
CIE-LCH	lch(24.21, 35.25, 285.18°)
OKLab	oklab(34.96% -0.0149 -0.0975)
OKLCH	oklch(34.96% 0.099 261.3)
XYZ	xyz(4.6255, 4.1650, 15.0252)
Luminance	0.0416 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B386D #6D501B

analogous

#1B616D #1B386D #271B6D

triadic

#1B386D #6D1B38 #386D1B

tetradic

#1B386D #6D1B61 #6D501B #1B6D27

square

#1B386D #6D1B61 #6D501B #1B6D27

split-complementary

#1B386D #6D271B #616D1B

monochromatic

#060D19 #0F1F3C #1B386D #27519E #356BCD

Accessibility & contrast

On white

11.46

#1B386D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#1B386D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B386D

11.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B386D	#FFFFFF	#000000	##FFFFFF
##1B386D	1.00	11.46	1.83	11.46
#FFFFFF	11.46	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D3E6F

Deuteranopia (green-blind)

#0B366C

Tritanopia (blue-blind)

#00444D

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1b386d;
/* rgb */ color: rgb(27, 56, 109);
/* oklch */ color: oklch(35.0% 0.099 261.3);

Tailwind

colors: {
  custom: {
    50: '#636e97',
    500: '#1b386d',
    950: '#000000',
  },
}

SCSS

$custom: #1b386d;
$custom-light: #636e97;
$custom-dark: #000000;

JSON

{
  "hex": "#1b386d",
  "rgb": {
    "r": 27,
    "g": 56,
    "b": 109
  },
  "hsl": {
    "h": 218.78,
    "s": 60.294,
    "l": 26.667
  },
  "oklch": {
    "l": 0.34963,
    "c": 0.09863,
    "h": 261.3
  },
  "luminance": 0.04165
}

Semantic roles & 50–950 ramp

primary

#1B386D

secondary

#A28042

accent

#AB44E3

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #1B386D

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

Preview Lab → · Contrast checker → · Palette generator →