#1B3896#1B3896

#1B3896 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.5% C 0.158 H 265.8°. Best body text is #FFFFFF at 10.23:1 contrast (WCAG AA passes).

Color values

HEX	#1B3896
RGB	rgb(27, 56, 150)
HSL	hsl(226, 69%, 35%)
HSV	hsv(226, 82%, 59%)
CMYK	cmyk(82%, 62.7%, 0%, 41.2%)
CIE-LAB	lab(27.47, 25.83, -54.43)
CIE-LCH	lch(27.47, 60.25, 295.39°)
OKLab	oklab(38.45% -0.0115 -0.1575)
OKLCH	oklch(38.45% 0.158 265.8)
XYZ	xyz(7.3692, 5.2625, 29.4756)
Luminance	0.0526 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B3896 #96791B

analogous

#1B7596 #1B3896 #3C1B96

triadic

#1B3896 #961B38 #38961B

tetradic

#1B3896 #961B75 #96791B #1B963C

square

#1B3896 #961B75 #96791B #1B963C

split-complementary

#1B3896 #963C1B #75961B

monochromatic

#08112E #122562 #1B3896 #244BCA #4D6FDF

Accessibility & contrast

On white

10.23

#1B3896 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#1B3896 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B3896

10.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B3896	#FFFFFF	#000000	##FFFFFF
##1B3896	1.00	10.23	2.05	10.23
#FFFFFF	10.23	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004799

Deuteranopia (green-blind)

#003B94

Tritanopia (blue-blind)

#005061

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1b3896;
/* rgb */ color: rgb(27, 56, 150);
/* oklch */ color: oklch(38.5% 0.158 265.8);

Tailwind

colors: {
  custom: {
    50: '#6e6eb6',
    500: '#1b3896',
    950: '#000000',
  },
}

SCSS

$custom: #1b3896;
$custom-light: #6e6eb6;
$custom-dark: #000000;

JSON

{
  "hex": "#1b3896",
  "rgb": {
    "r": 27,
    "g": 56,
    "b": 150
  },
  "hsl": {
    "h": 225.854,
    "s": 69.492,
    "l": 34.706
  },
  "oklch": {
    "l": 0.38452,
    "c": 0.15789,
    "h": 265.8
  },
  "luminance": 0.05263
}

Semantic roles & 50–950 ramp

primary

#1B3896

secondary

#C1A54C

accent

#C33BEC

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #1B3896

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

Preview Lab → · Contrast checker → · Palette generator →