#1B479C#1B479C

#1B479C is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.1% C 0.147 H 261.8°. Best body text is #FFFFFF at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#1B479C
RGB	rgb(27, 71, 156)
HSL	hsl(220, 70%, 36%)
HSV	hsv(220, 83%, 61%)
CMYK	cmyk(82.7%, 54.5%, 0%, 38.8%)
CIE-LAB	lab(32.12, 17.95, -50.51)
CIE-LCH	lch(32.12, 53.60, 289.57°)
OKLab	oklab(42.1% -0.021 -0.1457)
OKLCH	oklch(42.1% 0.147 261.8)
XYZ	xyz(8.7038, 7.1387, 32.3652)
Luminance	0.0714 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B479C #9C701B

analogous

#1B879C #1B479C #2F1B9C

triadic

#1B479C #9C1B47 #479C1B

tetradic

#1B479C #9C1B87 #9C701B #1B9C2F

square

#1B479C #9C1B87 #9C701B #1B9C2F

split-complementary

#1B479C #9C2F1B #879C1B

monochromatic

#091834 #122F68 #1B479C #245FD0 #5182E1

Accessibility & contrast

On white

8.65

#1B479C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#1B479C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B479C

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B479C	#FFFFFF	#000000	##FFFFFF
##1B479C	1.00	8.65	2.43	8.65
#FFFFFF	8.65	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00529F

Deuteranopia (green-blind)

#00469A

Tritanopia (blue-blind)

#005C6A

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1b479c;
/* rgb */ color: rgb(27, 71, 156);
/* oklch */ color: oklch(42.1% 0.147 261.8);

Tailwind

colors: {
  custom: {
    50: '#6e79ba',
    500: '#1b479c',
    950: '#000000',
  },
}

SCSS

$custom: #1b479c;
$custom-light: #6e79ba;
$custom-dark: #000000;

JSON

{
  "hex": "#1b479c",
  "rgb": {
    "r": 27,
    "g": 71,
    "b": 156
  },
  "hsl": {
    "h": 219.535,
    "s": 70.492,
    "l": 35.882
  },
  "oklch": {
    "l": 0.42101,
    "c": 0.1472,
    "h": 261.8
  },
  "luminance": 0.0714
}

Semantic roles & 50–950 ramp

primary

#1B479C

secondary

#C39C4F

accent

#B03BED

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080912

muted

#7B7B81

Preview Lab

Preview with #1B479C

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

Preview Lab → · Contrast checker → · Palette generator →