#1B199F#1B199F

#1B199F is a dark, highly saturated blue. Relative luminance 0.034; OKLCH L 34.6% C 0.201 H 269.8°. Best body text is #FFFFFF at 12.45:1 contrast (WCAG AA passes).

Color values

HEX	#1B199F
RGB	rgb(27, 25, 159)
HSL	hsl(241, 73%, 36%)
HSV	hsv(241, 84%, 62%)
CMYK	cmyk(83%, 84.3%, 0%, 37.6%)
CIE-LAB	lab(21.69, 47.67, -69.47)
CIE-LCH	lch(21.69, 84.25, 304.46°)
OKLab	oklab(34.58% -0.0009 -0.2011)
OKLCH	oklch(34.58% 0.201 269.8)
XYZ	xyz(7.0555, 3.4306, 33.0845)
Luminance	0.0343 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B199F #9D9F19

analogous

#195A9F #1B199F #5E199F

triadic

#1B199F #9F1B19 #199F1B

tetradic

#1B199F #9F195A #9D9F19 #199F5E

square

#1B199F #9F195A #9D9F19 #199F5E

split-complementary

#1B199F #9F5E19 #5A9F19

monochromatic

#090835 #12116A #1B199F #2421D4 #514FE3

Accessibility & contrast

On white

12.45

#1B199F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#1B199F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B199F

12.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B199F	#FFFFFF	#000000	##FFFFFF
##1B199F	1.00	12.45	1.69	12.45
#FFFFFF	12.45	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003BA3

Deuteranopia (green-blind)

#002D9D

Tritanopia (blue-blind)

#00455E

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1b199f;
/* rgb */ color: rgb(27, 25, 159);
/* oklch */ color: oklch(34.6% 0.201 269.8);

Tailwind

colors: {
  custom: {
    50: '#735abd',
    500: '#1b199f',
    950: '#000000',
  },
}

SCSS

$custom: #1b199f;
$custom-light: #735abd;
$custom-dark: #000000;

JSON

{
  "hex": "#1b199f",
  "rgb": {
    "r": 27,
    "g": 25,
    "b": 159
  },
  "hsl": {
    "h": 240.896,
    "s": 72.826,
    "l": 36.078
  },
  "oklch": {
    "l": 0.34583,
    "c": 0.2011,
    "h": 269.8
  },
  "luminance": 0.03431
}

Semantic roles & 50–950 ramp

primary

#1B199F

secondary

#C4C64E

accent

#F038ED

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #1B199F

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

Preview Lab → · Contrast checker → · Palette generator →