#1B479F#1B479F

#1B479F is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.3% C 0.151 H 262.1°. Best body text is #FFFFFF at 8.58:1 contrast (WCAG AA passes).

Color values

HEX	#1B479F
RGB	rgb(27, 71, 159)
HSL	hsl(220, 71%, 36%)
HSV	hsv(220, 83%, 62%)
CMYK	cmyk(83%, 55.3%, 0%, 37.6%)
CIE-LAB	lab(32.35, 19.16, -51.95)
CIE-LCH	lch(32.35, 55.37, 290.24°)
OKLab	oklab(42.35% -0.0207 -0.1499)
OKLCH	oklch(42.35% 0.151 262.1)
XYZ	xyz(8.9610, 7.2416, 33.7196)
Luminance	0.0724 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B479F #9F731B

analogous

#1B899F #1B479F #311B9F

triadic

#1B479F #9F1B47 #479F1B

tetradic

#1B479F #9F1B89 #9F731B #1B9F31

square

#1B479F #9F1B89 #9F731B #1B9F31

split-complementary

#1B479F #9F311B #899F1B

monochromatic

#091836 #12306B #1B479F #245ED3 #5382E2

Accessibility & contrast

On white

8.58

#1B479F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#1B479F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B479F

8.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B479F	#FFFFFF	#000000	##FFFFFF
##1B479F	1.00	8.58	2.45	8.58
#FFFFFF	8.58	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052A2

Deuteranopia (green-blind)

#00469D

Tritanopia (blue-blind)

#005D6C

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1b479f;
/* rgb */ color: rgb(27, 71, 159);
/* oklch */ color: oklch(42.3% 0.151 262.1);

Tailwind

colors: {
  custom: {
    50: '#6f79bc',
    500: '#1b479f',
    950: '#000000',
  },
}

SCSS

$custom: #1b479f;
$custom-light: #6f79bc;
$custom-dark: #000000;

JSON

{
  "hex": "#1b479f",
  "rgb": {
    "r": 27,
    "g": 71,
    "b": 159
  },
  "hsl": {
    "h": 220,
    "s": 70.968,
    "l": 36.471
  },
  "oklch": {
    "l": 0.42348,
    "c": 0.15135,
    "h": 262.1
  },
  "luminance": 0.07243
}

Semantic roles & 50–950 ramp

primary

#1B479F

secondary

#C59E51

accent

#B23AEE

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1B479F

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

Preview Lab → · Contrast checker → · Palette generator →