#1B4BA6#1B4BA6

#1B4BA6 is a dark, vivid blue. Relative luminance 0.080; OKLCH L 43.8% C 0.156 H 261.6°. Best body text is #FFFFFF at 8.07:1 contrast (WCAG AA passes).

Color values

HEX	#1B4BA6
RGB	rgb(27, 75, 166)
HSL	hsl(219, 72%, 38%)
HSV	hsv(219, 84%, 65%)
CMYK	cmyk(83.7%, 54.8%, 0%, 34.9%)
CIE-LAB	lab(34.02, 19.25, -53.45)
CIE-LCH	lch(34.02, 56.81, 289.80°)
OKLab	oklab(43.78% -0.0227 -0.1543)
OKLCH	oklch(43.78% 0.156 261.6)
XYZ	xyz(9.8485, 8.0171, 37.0974)
Luminance	0.0802 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4BA6 #A6761B

analogous

#1B90A6 #1B4BA6 #311BA6

triadic

#1B4BA6 #A61B4B #4BA61B

tetradic

#1B4BA6 #A61B90 #A6761B #1BA631

square

#1B4BA6 #A61B90 #A6761B #1BA631

split-complementary

#1B4BA6 #A6311B #90A61B

monochromatic

#0A1B3D #123371 #1B4BA6 #2463DB #5888E4

Accessibility & contrast

On white

8.07

#1B4BA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#1B4BA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4BA6

8.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4BA6	#FFFFFF	#000000	##FFFFFF
##1B4BA6	1.00	8.07	2.60	8.07
#FFFFFF	8.07	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057A9

Deuteranopia (green-blind)

#004AA4

Tritanopia (blue-blind)

#006271

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1b4ba6;
/* rgb */ color: rgb(27, 75, 166);
/* oklch */ color: oklch(43.8% 0.156 261.6);

Tailwind

colors: {
  custom: {
    50: '#717cc1',
    500: '#1b4ba6',
    950: '#000000',
  },
}

SCSS

$custom: #1b4ba6;
$custom-light: #717cc1;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4ba6",
  "rgb": {
    "r": 27,
    "g": 75,
    "b": 166
  },
  "hsl": {
    "h": 219.281,
    "s": 72.021,
    "l": 37.843
  },
  "oklch": {
    "l": 0.43782,
    "c": 0.15593,
    "h": 261.6
  },
  "luminance": 0.08018
}

Semantic roles & 50–950 ramp

primary

#1B4BA6

secondary

#C7A056

accent

#B039EF

background

#F7F7FC

surface

#EDEEF8

border

#C8C9D1

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1B4BA6

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

Preview Lab → · Contrast checker → · Palette generator →