#1B44A1#1B44A1

#1B44A1 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 41.9% C 0.158 H 263.3°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#1B44A1
RGB	rgb(27, 68, 161)
HSL	hsl(222, 71%, 37%)
HSV	hsv(222, 83%, 63%)
CMYK	cmyk(83.2%, 57.8%, 0%, 36.9%)
CIE-LAB	lab(31.67, 22.00, -54.27)
CIE-LCH	lch(31.67, 58.56, 292.07°)
OKLab	oklab(41.88% -0.0185 -0.1568)
OKLCH	oklch(41.88% 0.158 263.3)
XYZ	xyz(8.9498, 6.9394, 34.5790)
Luminance	0.0694 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B44A1 #A1781B

analogous

#1B87A1 #1B44A1 #351BA1

triadic

#1B44A1 #A11B44 #44A11B

tetradic

#1B44A1 #A11B87 #A1781B #1BA135

square

#1B44A1 #A11B87 #A1781B #1BA135

split-complementary

#1B44A1 #A1351B #87A11B

monochromatic

#091838 #122E6D #1B44A1 #245AD5 #5480E2

Accessibility & contrast

On white

8.79

#1B44A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#1B44A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B44A1

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B44A1	#FFFFFF	#000000	##FFFFFF
##1B44A1	1.00	8.79	2.39	8.79
#FFFFFF	8.79	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051A4

Deuteranopia (green-blind)

#00459F

Tritanopia (blue-blind)

#005B6B

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1b44a1;
/* rgb */ color: rgb(27, 68, 161);
/* oklch */ color: oklch(41.9% 0.158 263.3);

Tailwind

colors: {
  custom: {
    50: '#7077be',
    500: '#1b44a1',
    950: '#000000',
  },
}

SCSS

$custom: #1b44a1;
$custom-light: #7077be;
$custom-dark: #000000;

JSON

{
  "hex": "#1b44a1",
  "rgb": {
    "r": 27,
    "g": 68,
    "b": 161
  },
  "hsl": {
    "h": 221.642,
    "s": 71.277,
    "l": 36.863
  },
  "oklch": {
    "l": 0.41882,
    "c": 0.15788,
    "h": 263.3
  },
  "luminance": 0.0694
}

Semantic roles & 50–950 ramp

primary

#1B44A1

secondary

#C5A252

accent

#B73AEE

background

#F7F7FB

surface

#EDEDF7

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1B44A1

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

Preview Lab → · Contrast checker → · Palette generator →