#1B449E#1B449E

#1B449E is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.6% C 0.154 H 263.0°. Best body text is #FFFFFF at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#1B449E
RGB	rgb(27, 68, 158)
HSL	hsl(221, 71%, 36%)
HSV	hsv(221, 83%, 62%)
CMYK	cmyk(82.9%, 57%, 0%, 38%)
CIE-LAB	lab(31.43, 20.81, -52.84)
CIE-LCH	lch(31.43, 56.79, 291.49°)
OKLab	oklab(41.63% -0.0187 -0.1526)
OKLCH	oklch(41.63% 0.154 263)
XYZ	xyz(8.6885, 6.8348, 33.2025)
Luminance	0.0684 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B449E #9E751B

analogous

#1B869E #1B449E #331B9E

triadic

#1B449E #9E1B44 #449E1B

tetradic

#1B449E #9E1B86 #9E751B #1B9E33

square

#1B449E #9E1B86 #9E751B #1B9E33

split-complementary

#1B449E #9E331B #869E1B

monochromatic

#091735 #122E6A #1B449E #245AD2 #527FE1

Accessibility & contrast

On white

8.87

#1B449E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#1B449E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B449E

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B449E	#FFFFFF	#000000	##FFFFFF
##1B449E	1.00	8.87	2.37	8.87
#FFFFFF	8.87	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A1

Deuteranopia (green-blind)

#00449C

Tritanopia (blue-blind)

#005A6A

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1b449e;
/* rgb */ color: rgb(27, 68, 158);
/* oklch */ color: oklch(41.6% 0.154 263.0);

Tailwind

colors: {
  custom: {
    50: '#6f77bb',
    500: '#1b449e',
    950: '#000000',
  },
}

SCSS

$custom: #1b449e;
$custom-light: #6f77bb;
$custom-dark: #000000;

JSON

{
  "hex": "#1b449e",
  "rgb": {
    "r": 27,
    "g": 68,
    "b": 158
  },
  "hsl": {
    "h": 221.221,
    "s": 70.811,
    "l": 36.275
  },
  "oklch": {
    "l": 0.41626,
    "c": 0.15377,
    "h": 263
  },
  "luminance": 0.06836
}

Semantic roles & 50–950 ramp

primary

#1B449E

secondary

#C4A051

accent

#B53AEE

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1B449E

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

Preview Lab → · Contrast checker → · Palette generator →