#1B49A8#1B49A8

#1B49A8 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.5% C 0.161 H 262.4°. Best body text is #FFFFFF at 8.19:1 contrast (WCAG AA passes).

Color values

HEX	#1B49A8
RGB	rgb(27, 73, 168)
HSL	hsl(220, 72%, 38%)
HSV	hsv(220, 84%, 66%)
CMYK	cmyk(83.9%, 56.5%, 0%, 34.1%)
CIE-LAB	lab(33.61, 21.40, -55.30)
CIE-LCH	lch(33.61, 59.30, 291.15°)
OKLab	oklab(43.53% -0.0213 -0.1597)
OKLCH	oklch(43.53% 0.161 262.4)
XYZ	xyz(9.8999, 7.8240, 38.0266)
Luminance	0.0783 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B49A8 #A87A1B

analogous

#1B8FA8 #1B49A8 #341BA8

triadic

#1B49A8 #A81B49 #49A81B

tetradic

#1B49A8 #A81B8F #A87A1B #1BA834

square

#1B49A8 #A81B8F #A87A1B #1BA834

split-complementary

#1B49A8 #A8341B #8FA81B

monochromatic

#0A1B3F #133273 #1B49A8 #2460DC #5986E4

Accessibility & contrast

On white

8.19

#1B49A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#1B49A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B49A8

8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B49A8	#FFFFFF	#000000	##FFFFFF
##1B49A8	1.00	8.19	2.57	8.19
#FFFFFF	8.19	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056AB

Deuteranopia (green-blind)

#0049A6

Tritanopia (blue-blind)

#006171

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1b49a8;
/* rgb */ color: rgb(27, 73, 168);
/* oklch */ color: oklch(43.5% 0.161 262.4);

Tailwind

colors: {
  custom: {
    50: '#717bc3',
    500: '#1b49a8',
    950: '#000000',
  },
}

SCSS

$custom: #1b49a8;
$custom-light: #717bc3;
$custom-dark: #000000;

JSON

{
  "hex": "#1b49a8",
  "rgb": {
    "r": 27,
    "g": 73,
    "b": 168
  },
  "hsl": {
    "h": 220.426,
    "s": 72.308,
    "l": 38.235
  },
  "oklch": {
    "l": 0.43525,
    "c": 0.16116,
    "h": 262.4
  },
  "luminance": 0.07825
}

Semantic roles & 50–950 ramp

primary

#1B49A8

secondary

#C8A357

accent

#B439EF

background

#F7F7FC

surface

#EDEDF8

border

#C8C8D1

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1B49A8

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

Preview Lab → · Contrast checker → · Palette generator →