#1B449C#1B449C

#1B449C is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.5% C 0.151 H 262.8°. Best body text is #FFFFFF at 8.92:1 contrast (WCAG AA passes).

Color values

HEX	#1B449C
RGB	rgb(27, 68, 156)
HSL	hsl(221, 70%, 36%)
HSV	hsv(221, 83%, 61%)
CMYK	cmyk(82.7%, 56.4%, 0%, 38.8%)
CIE-LAB	lab(31.27, 20.00, -51.89)
CIE-LCH	lch(31.27, 55.61, 291.08°)
OKLab	oklab(41.46% -0.0189 -0.1498)
OKLCH	oklch(41.46% 0.151 262.8)
XYZ	xyz(8.5177, 6.7665, 32.3032)
Luminance	0.0677 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B449C #9C731B

analogous

#1B849C #1B449C #321B9C

triadic

#1B449C #9C1B44 #449C1B

tetradic

#1B449C #9C1B84 #9C731B #1B9C32

square

#1B449C #9C1B84 #9C731B #1B9C32

split-complementary

#1B449C #9C321B #849C1B

monochromatic

#091734 #122D68 #1B449C #245BD0 #517EE1

Accessibility & contrast

On white

8.92

#1B449C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#1B449C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B449C

8.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B449C	#FFFFFF	#000000	##FFFFFF
##1B449C	1.00	8.92	2.35	8.92
#FFFFFF	8.92	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00509F

Deuteranopia (green-blind)

#00449A

Tritanopia (blue-blind)

#005A69

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1b449c;
/* rgb */ color: rgb(27, 68, 156);
/* oklch */ color: oklch(41.5% 0.151 262.8);

Tailwind

colors: {
  custom: {
    50: '#6e77ba',
    500: '#1b449c',
    950: '#000000',
  },
}

SCSS

$custom: #1b449c;
$custom-light: #6e77ba;
$custom-dark: #000000;

JSON

{
  "hex": "#1b449c",
  "rgb": {
    "r": 27,
    "g": 68,
    "b": 156
  },
  "hsl": {
    "h": 220.93,
    "s": 70.492,
    "l": 35.882
  },
  "oklch": {
    "l": 0.41456,
    "c": 0.15101,
    "h": 262.8
  },
  "luminance": 0.06768
}

Semantic roles & 50–950 ramp

primary

#1B449C

secondary

#C39F4F

accent

#B43BED

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1B449C

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

Preview Lab → · Contrast checker → · Palette generator →