#1B50A0#1B50A0

#1B50A0 is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.4% C 0.141 H 259.0°. Best body text is #FFFFFF at 7.77:1 contrast (WCAG AA passes).

Color values

HEX	#1B50A0
RGB	rgb(27, 80, 160)
HSL	hsl(216, 71%, 37%)
HSV	hsv(216, 83%, 63%)
CMYK	cmyk(83.1%, 50%, 0%, 37.3%)
CIE-LAB	lab(35.02, 13.46, -48.23)
CIE-LCH	lch(35.02, 50.08, 285.59°)
OKLab	oklab(44.41% -0.0271 -0.1388)
OKLCH	oklch(44.41% 0.141 259)
XYZ	xyz(9.6635, 8.5072, 34.3836)
Luminance	0.0851 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B50A0 #A06B1B

analogous

#1B93A0 #1B50A0 #281BA0

triadic

#1B50A0 #A01B50 #50A01B

tetradic

#1B50A0 #A01B93 #A06B1B #1BA028

square

#1B50A0 #A01B93 #A06B1B #1BA028

split-complementary

#1B50A0 #A0281B #93A01B

monochromatic

#091C37 #12366C #1B50A0 #246AD4 #538CE2

Accessibility & contrast

On white

7.77

#1B50A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#1B50A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B50A0

7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B50A0	#FFFFFF	#000000	##FFFFFF
##1B50A0	1.00	7.77	2.70	7.77
#FFFFFF	7.77	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2059A3

Deuteranopia (green-blind)

#004D9E

Tritanopia (blue-blind)

#006370

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1b50a0;
/* rgb */ color: rgb(27, 80, 160);
/* oklch */ color: oklch(44.4% 0.141 259.0);

Tailwind

colors: {
  custom: {
    50: '#6f80bd',
    500: '#1b50a0',
    950: '#000000',
  },
}

SCSS

$custom: #1b50a0;
$custom-light: #6f80bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1b50a0",
  "rgb": {
    "r": 27,
    "g": 80,
    "b": 160
  },
  "hsl": {
    "h": 216.09,
    "s": 71.123,
    "l": 36.667
  },
  "oklch": {
    "l": 0.44406,
    "c": 0.14143,
    "h": 259
  },
  "luminance": 0.08508
}

Semantic roles & 50–950 ramp

primary

#1B50A0

secondary

#C59752

accent

#A63AEE

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1B50A0

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

Preview Lab → · Contrast checker → · Palette generator →