#1B198F#1B198F

#1B198F is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.6% C 0.182 H 270.9°. Best body text is #FFFFFF at 13.27:1 contrast (WCAG AA passes).

Color values

HEX	#1B198F
RGB	rgb(27, 25, 143)
HSL	hsl(241, 70%, 33%)
HSV	hsv(241, 83%, 56%)
CMYK	cmyk(81.1%, 82.5%, 0%, 43.9%)
CIE-LAB	lab(19.68, 42.54, -62.94)
CIE-LCH	lch(19.68, 75.97, 304.06°)
OKLab	oklab(32.61% 0.0027 -0.1822)
OKLCH	oklch(32.61% 0.182 270.9)
XYZ	xyz(5.7559, 2.9108, 26.2398)
Luminance	0.0291 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B198F #8D8F19

analogous

#19528F #1B198F #56198F

triadic

#1B198F #8F1B19 #198F1B

tetradic

#1B198F #8F1952 #8D8F19 #198F56

square

#1B198F #8F1952 #8D8F19 #198F56

split-complementary

#1B198F #8F5619 #528F19

monochromatic

#070727 #11105B #1B198F #2522C3 #4744DE

Accessibility & contrast

On white

13.27

#1B198F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#1B198F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B198F

13.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B198F	#FFFFFF	#000000	##FFFFFF
##1B198F	1.00	13.27	1.58	13.27
#FFFFFF	13.27	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003592

Deuteranopia (green-blind)

#00298D

Tritanopia (blue-blind)

#003E55

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1b198f;
/* rgb */ color: rgb(27, 25, 143);
/* oklch */ color: oklch(32.6% 0.182 270.9);

Tailwind

colors: {
  custom: {
    50: '#6f59b1',
    500: '#1b198f',
    950: '#000000',
  },
}

SCSS

$custom: #1b198f;
$custom-light: #6f59b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1b198f",
  "rgb": {
    "r": 27,
    "g": 25,
    "b": 143
  },
  "hsl": {
    "h": 241.017,
    "s": 70.238,
    "l": 32.941
  },
  "oklch": {
    "l": 0.32614,
    "c": 0.18222,
    "h": 270.9
  },
  "luminance": 0.02911
}

Semantic roles & 50–950 ramp

primary

#1B198F

secondary

#BDBF44

accent

#ED3BEA

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1B198F

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

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