#1B44A8#1B44A8

#1B44A8 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.5% C 0.167 H 263.8°. Best body text is #FFFFFF at 8.61:1 contrast (WCAG AA passes).

Color values

HEX	#1B44A8
RGB	rgb(27, 68, 168)
HSL	hsl(223, 72%, 38%)
HSV	hsv(223, 84%, 66%)
CMYK	cmyk(83.9%, 59.5%, 0%, 34.1%)
CIE-LAB	lab(32.24, 24.78, -57.54)
CIE-LCH	lch(32.24, 62.65, 293.30°)
OKLab	oklab(42.49% -0.0182 -0.1664)
OKLCH	oklch(42.49% 0.167 263.8)
XYZ	xyz(9.5845, 7.1932, 37.9215)
Luminance	0.0719 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B44A8 #A87F1B

analogous

#1B8AA8 #1B44A8 #381BA8

triadic

#1B44A8 #A81B44 #44A81B

tetradic

#1B44A8 #A81B8A #A87F1B #1BA838

square

#1B44A8 #A81B8A #A87F1B #1BA838

split-complementary

#1B44A8 #A8381B #8AA81B

monochromatic

#0A193F #132F73 #1B44A8 #245ADC #5982E4

Accessibility & contrast

On white

8.61

#1B44A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#1B44A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B44A8

8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B44A8	#FFFFFF	#000000	##FFFFFF
##1B44A8	1.00	8.61	2.44	8.61
#FFFFFF	8.61	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053AB

Deuteranopia (green-blind)

#0046A6

Tritanopia (blue-blind)

#005E6F

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1b44a8;
/* rgb */ color: rgb(27, 68, 168);
/* oklch */ color: oklch(42.5% 0.167 263.8);

Tailwind

colors: {
  custom: {
    50: '#7277c3',
    500: '#1b44a8',
    950: '#000000',
  },
}

SCSS

$custom: #1b44a8;
$custom-light: #7277c3;
$custom-dark: #000000;

JSON

{
  "hex": "#1b44a8",
  "rgb": {
    "r": 27,
    "g": 68,
    "b": 168
  },
  "hsl": {
    "h": 222.553,
    "s": 72.308,
    "l": 38.235
  },
  "oklch": {
    "l": 0.42493,
    "c": 0.16739,
    "h": 263.8
  },
  "luminance": 0.07194
}

Semantic roles & 50–950 ramp

primary

#1B44A8

secondary

#C8A757

accent

#BA39EF

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#090813

muted

#7B7B82

Preview Lab

Preview with #1B44A8

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

Preview Lab → · Contrast checker → · Palette generator →