#1B499D#1B499D

#1B499D is a dark, vivid blue. Relative luminance 0.074; OKLCH L 42.6% C 0.146 H 261.2°. Best body text is #FFFFFF at 8.45:1 contrast (WCAG AA passes).

Color values

HEX	#1B499D
RGB	rgb(27, 73, 157)
HSL	hsl(219, 71%, 36%)
HSV	hsv(219, 83%, 62%)
CMYK	cmyk(82.8%, 53.5%, 0%, 38.4%)
CIE-LAB	lab(32.77, 16.99, -50.06)
CIE-LCH	lch(32.77, 52.87, 288.75°)
OKLab	oklab(42.62% -0.0223 -0.1443)
OKLCH	oklch(42.62% 0.146 261.2)
XYZ	xyz(8.9181, 7.4313, 32.8561)
Luminance	0.0743 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B499D #9D6F1B

analogous

#1B8A9D #1B499D #2E1B9D

triadic

#1B499D #9D1B49 #499D1B

tetradic

#1B499D #9D1B8A #9D6F1B #1B9D2E

square

#1B499D #9D1B8A #9D6F1B #1B9D2E

split-complementary

#1B499D #9D2E1B #8A9D1B

monochromatic

#091835 #123169 #1B499D #2461D1 #5184E1

Accessibility & contrast

On white

8.45

#1B499D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#1B499D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B499D

8.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B499D	#FFFFFF	#000000	##FFFFFF
##1B499D	1.00	8.45	2.49	8.45
#FFFFFF	8.45	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0953A0

Deuteranopia (green-blind)

#00479B

Tritanopia (blue-blind)

#005E6C

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1b499d;
/* rgb */ color: rgb(27, 73, 157);
/* oklch */ color: oklch(42.6% 0.146 261.2);

Tailwind

colors: {
  custom: {
    50: '#6e7bbb',
    500: '#1b499d',
    950: '#000000',
  },
}

SCSS

$custom: #1b499d;
$custom-light: #6e7bbb;
$custom-dark: #000000;

JSON

{
  "hex": "#1b499d",
  "rgb": {
    "r": 27,
    "g": 73,
    "b": 157
  },
  "hsl": {
    "h": 218.769,
    "s": 70.652,
    "l": 36.078
  },
  "oklch": {
    "l": 0.42618,
    "c": 0.14605,
    "h": 261.2
  },
  "luminance": 0.07432
}

Semantic roles & 50–950 ramp

primary

#1B499D

secondary

#C49B50

accent

#AE3AED

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1B499D

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

Preview Lab → · Contrast checker → · Palette generator →