#1B50B4#1B50B4

#1B50B4 is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.0% C 0.169 H 261.6°. Best body text is #FFFFFF at 7.36:1 contrast (WCAG AA passes).

Color values

HEX	#1B50B4
RGB	rgb(27, 80, 180)
HSL	hsl(219, 74%, 41%)
HSV	hsv(219, 85%, 71%)
CMYK	cmyk(85%, 55.6%, 0%, 29.4%)
CIE-LAB	lab(36.49, 21.46, -57.76)
CIE-LCH	lch(36.49, 61.62, 290.38°)
OKLab	oklab(45.99% -0.0247 -0.1668)
OKLCH	oklch(45.99% 0.169 261.6)
XYZ	xyz(11.5559, 9.2642, 44.3503)
Luminance	0.0927 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B50B4 #B47F1B

analogous

#1B9CB4 #1B50B4 #331BB4

triadic

#1B50B4 #B41B50 #50B41B

tetradic

#1B50B4 #B41B9C #B47F1B #1BB433

square

#1B50B4 #B41B9C #B47F1B #1BB433

split-complementary

#1B50B4 #B4331B #9CB41B

monochromatic

#0B214A #13387F #1B50B4 #2D6BDF #6290E7

Accessibility & contrast

On white

7.36

#1B50B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#1B50B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B50B4

7.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B50B4	#FFFFFF	#000000	##FFFFFF
##1B50B4	1.00	7.36	2.85	7.36
#FFFFFF	7.36	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DB7

Deuteranopia (green-blind)

#004FB2

Tritanopia (blue-blind)

#00697A

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #1b50b4;
/* rgb */ color: rgb(27, 80, 180);
/* oklch */ color: oklch(46.0% 0.169 261.6);

Tailwind

colors: {
  custom: {
    50: '#7480cb',
    500: '#1b50b4',
    950: '#000000',
  },
}

SCSS

$custom: #1b50b4;
$custom-light: #7480cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1b50b4",
  "rgb": {
    "r": 27,
    "g": 80,
    "b": 180
  },
  "hsl": {
    "h": 219.216,
    "s": 73.913,
    "l": 40.588
  },
  "oklch": {
    "l": 0.45992,
    "c": 0.16865,
    "h": 261.6
  },
  "luminance": 0.09266
}

Semantic roles & 50–950 ramp

primary

#1B50B4

secondary

#CCA65F

accent

#B037F1

background

#F7F7FC

surface

#EEEEF9

border

#C9C9D2

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #1B50B4

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

Preview Lab → · Contrast checker → · Palette generator →