#1B198B#1B198B

#1B198B is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.1% C 0.177 H 271.2°. Best body text is #FFFFFF at 13.48:1 contrast (WCAG AA passes).

Color values

HEX	#1B198B
RGB	rgb(27, 25, 139)
HSL	hsl(241, 70%, 32%)
HSV	hsv(241, 82%, 55%)
CMYK	cmyk(80.6%, 82%, 0%, 45.5%)
CIE-LAB	lab(19.19, 41.23, -61.26)
CIE-LCH	lch(19.19, 73.84, 303.94°)
OKLab	oklab(32.13% 0.0036 -0.1773)
OKLCH	oklch(32.13% 0.177 271.2)
XYZ	xyz(5.4583, 2.7917, 24.6723)
Luminance	0.0279 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B198B #898B19

analogous

#19508B #1B198B #54198B

triadic

#1B198B #8B1B19 #198B1B

tetradic

#1B198B #8B1950 #898B19 #198B54

square

#1B198B #8B1950 #898B19 #198B54

split-complementary

#1B198B #8B5419 #508B19

monochromatic

#070623 #111057 #1B198B #2522BF #4441DD

Accessibility & contrast

On white

13.48

#1B198B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#1B198B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B198B

13.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B198B	#FFFFFF	#000000	##FFFFFF
##1B198B	1.00	13.48	1.56	13.48
#FFFFFF	13.48	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00348E

Deuteranopia (green-blind)

#002989

Tritanopia (blue-blind)

#003D52

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1b198b;
/* rgb */ color: rgb(27, 25, 139);
/* oklch */ color: oklch(32.1% 0.177 271.2);

Tailwind

colors: {
  custom: {
    50: '#6e59ae',
    500: '#1b198b',
    950: '#000000',
  },
}

SCSS

$custom: #1b198b;
$custom-light: #6e59ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1b198b",
  "rgb": {
    "r": 27,
    "g": 25,
    "b": 139
  },
  "hsl": {
    "h": 241.053,
    "s": 69.512,
    "l": 32.157
  },
  "oklch": {
    "l": 0.32128,
    "c": 0.17737,
    "h": 271.2
  },
  "luminance": 0.02792
}

Semantic roles & 50–950 ramp

primary

#1B198B

secondary

#BCBE42

accent

#EC3BE9

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090410

muted

#7B797F

Preview Lab

Preview with #1B198B

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

Preview Lab → · Contrast checker → · Palette generator →