#1B44A0#1B44A0

#1B44A0 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 41.8% C 0.157 H 263.2°. Best body text is #FFFFFF at 8.82:1 contrast (WCAG AA passes).

Color values

HEX	#1B44A0
RGB	rgb(27, 68, 160)
HSL	hsl(222, 71%, 37%)
HSV	hsv(222, 83%, 63%)
CMYK	cmyk(83.1%, 57.5%, 0%, 37.3%)
CIE-LAB	lab(31.59, 21.61, -53.79)
CIE-LCH	lch(31.59, 57.97, 291.88°)
OKLab	oklab(41.8% -0.0186 -0.1554)
OKLCH	oklch(41.8% 0.157 263.2)
XYZ	xyz(8.8620, 6.9042, 34.1165)
Luminance	0.0691 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B44A0 #A0771B

analogous

#1B87A0 #1B44A0 #351BA0

triadic

#1B44A0 #A01B44 #44A01B

tetradic

#1B44A0 #A01B87 #A0771B #1BA035

square

#1B44A0 #A01B87 #A0771B #1BA035

split-complementary

#1B44A0 #A0351B #87A01B

monochromatic

#091737 #122E6C #1B44A0 #245AD4 #537FE2

Accessibility & contrast

On white

8.82

#1B44A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#1B44A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B44A0

8.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B44A0	#FFFFFF	#000000	##FFFFFF
##1B44A0	1.00	8.82	2.38	8.82
#FFFFFF	8.82	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051A3

Deuteranopia (green-blind)

#00449E

Tritanopia (blue-blind)

#005B6B

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1b44a0;
/* rgb */ color: rgb(27, 68, 160);
/* oklch */ color: oklch(41.8% 0.157 263.2);

Tailwind

colors: {
  custom: {
    50: '#7077bd',
    500: '#1b44a0',
    950: '#000000',
  },
}

SCSS

$custom: #1b44a0;
$custom-light: #7077bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1b44a0",
  "rgb": {
    "r": 27,
    "g": 68,
    "b": 160
  },
  "hsl": {
    "h": 221.504,
    "s": 71.123,
    "l": 36.667
  },
  "oklch": {
    "l": 0.41796,
    "c": 0.15652,
    "h": 263.2
  },
  "luminance": 0.06905
}

Semantic roles & 50–950 ramp

primary

#1B44A0

secondary

#C5A152

accent

#B63AEE

background

#F7F7FB

surface

#EDEDF7

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1B44A0

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

Preview Lab → · Contrast checker → · Palette generator →