#1B50A7#1B50A7

#1B50A7 is a dark, vivid blue. Relative luminance 0.088; OKLCH L 44.9% C 0.151 H 260.0°. Best body text is #FFFFFF at 7.63:1 contrast (WCAG AA passes).

Color values

HEX	#1B50A7
RGB	rgb(27, 80, 167)
HSL	hsl(217, 72%, 38%)
HSV	hsv(217, 84%, 65%)
CMYK	cmyk(83.8%, 52.1%, 0%, 34.5%)
CIE-LAB	lab(35.52, 16.27, -51.62)
CIE-LCH	lch(35.52, 54.12, 287.50°)
OKLab	oklab(44.95% -0.0261 -0.1488)
OKLCH	oklch(44.95% 0.151 260)
XYZ	xyz(10.2932, 8.7591, 37.6999)
Luminance	0.0876 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B50A7 #A7721B

analogous

#1B96A7 #1B50A7 #2C1BA7

triadic

#1B50A7 #A71B50 #50A71B

tetradic

#1B50A7 #A71B96 #A7721B #1BA72C

square

#1B50A7 #A71B96 #A7721B #1BA72C

split-complementary

#1B50A7 #A72C1B #96A71B

monochromatic

#0A1E3E #123772 #1B50A7 #2469DC #588DE4

Accessibility & contrast

On white

7.63

#1B50A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#1B50A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B50A7

7.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B50A7	#FFFFFF	#000000	##FFFFFF
##1B50A7	1.00	7.63	2.75	7.63
#FFFFFF	7.63	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#145AAA

Deuteranopia (green-blind)

#004EA5

Tritanopia (blue-blind)

#006573

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1b50a7;
/* rgb */ color: rgb(27, 80, 167);
/* oklch */ color: oklch(44.9% 0.151 260.0);

Tailwind

colors: {
  custom: {
    50: '#7180c2',
    500: '#1b50a7',
    950: '#000000',
  },
}

SCSS

$custom: #1b50a7;
$custom-light: #7180c2;
$custom-dark: #000000;

JSON

{
  "hex": "#1b50a7",
  "rgb": {
    "r": 27,
    "g": 80,
    "b": 167
  },
  "hsl": {
    "h": 217.286,
    "s": 72.165,
    "l": 38.039
  },
  "oklch": {
    "l": 0.44946,
    "c": 0.15104,
    "h": 260
  },
  "luminance": 0.0876
}

Semantic roles & 50–950 ramp

primary

#1B50A7

secondary

#C89D56

accent

#AA39EF

background

#F7F7FC

surface

#EDEEF8

border

#C8C9D1

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1B50A7

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

Preview Lab → · Contrast checker → · Palette generator →