#1B479E#1B479E

#1B479E is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.3% C 0.150 H 262.0°. Best body text is #FFFFFF at 8.60:1 contrast (WCAG AA passes).

Color values

HEX	#1B479E
RGB	rgb(27, 71, 158)
HSL	hsl(220, 71%, 36%)
HSV	hsv(220, 83%, 62%)
CMYK	cmyk(82.9%, 55.1%, 0%, 38%)
CIE-LAB	lab(32.27, 18.76, -51.47)
CIE-LCH	lch(32.27, 54.78, 290.02°)
OKLab	oklab(42.27% -0.0208 -0.1485)
OKLCH	oklch(42.27% 0.15 262)
XYZ	xyz(8.8746, 7.2070, 33.2645)
Luminance	0.0721 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B479E #9E721B

analogous

#1B899E #1B479E #301B9E

triadic

#1B479E #9E1B47 #479E1B

tetradic

#1B479E #9E1B89 #9E721B #1B9E30

square

#1B479E #9E1B89 #9E721B #1B9E30

split-complementary

#1B479E #9E301B #899E1B

monochromatic

#091835 #12306A #1B479E #245ED2 #5282E1

Accessibility & contrast

On white

8.60

#1B479E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#1B479E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B479E

8.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B479E	#FFFFFF	#000000	##FFFFFF
##1B479E	1.00	8.60	2.44	8.60
#FFFFFF	8.60	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052A1

Deuteranopia (green-blind)

#00469C

Tritanopia (blue-blind)

#005D6B

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1b479e;
/* rgb */ color: rgb(27, 71, 158);
/* oklch */ color: oklch(42.3% 0.150 262.0);

Tailwind

colors: {
  custom: {
    50: '#6f79bb',
    500: '#1b479e',
    950: '#000000',
  },
}

SCSS

$custom: #1b479e;
$custom-light: #6f79bb;
$custom-dark: #000000;

JSON

{
  "hex": "#1b479e",
  "rgb": {
    "r": 27,
    "g": 71,
    "b": 158
  },
  "hsl": {
    "h": 219.847,
    "s": 70.811,
    "l": 36.275
  },
  "oklch": {
    "l": 0.42265,
    "c": 0.14997,
    "h": 262
  },
  "luminance": 0.07208
}

Semantic roles & 50–950 ramp

primary

#1B479E

secondary

#C49D51

accent

#B13AEE

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1B479E

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

Preview Lab → · Contrast checker → · Palette generator →