#1B2197#1B2197

#1B2197 is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.6% C 0.185 H 269.6°. Best body text is #FFFFFF at 12.27:1 contrast (WCAG AA passes).

Color values

HEX	#1B2197
RGB	rgb(27, 33, 151)
HSL	hsl(237, 70%, 35%)
HSV	hsv(237, 82%, 59%)
CMYK	cmyk(82.1%, 78.1%, 0%, 40.8%)
CIE-LAB	lab(22.14, 40.91, -63.82)
CIE-LCH	lch(22.14, 75.81, 302.66°)
OKLab	oklab(34.62% -0.0011 -0.1849)
OKLCH	oklch(34.62% 0.185 269.6)
XYZ	xyz(6.5799, 3.5543, 29.6114)
Luminance	0.0355 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2197 #97911B

analogous

#1B5F97 #1B2197 #531B97

triadic

#1B2197 #971B21 #21971B

tetradic

#1B2197 #971B5F #97911B #1B9753

square

#1B2197 #971B5F #97911B #1B9753

split-complementary

#1B2197 #97531B #5F971B

monochromatic

#080A2F #121663 #1B2197 #242CCB #4D54DF

Accessibility & contrast

On white

12.27

#1B2197 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#1B2197 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2197

12.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2197	#FFFFFF	#000000	##FFFFFF
##1B2197	1.00	12.27	1.71	12.27
#FFFFFF	12.27	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B9A

Deuteranopia (green-blind)

#002F95

Tritanopia (blue-blind)

#00455B

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1b2197;
/* rgb */ color: rgb(27, 33, 151);
/* oklch */ color: oklch(34.6% 0.185 269.6);

Tailwind

colors: {
  custom: {
    50: '#705eb7',
    500: '#1b2197',
    950: '#000000',
  },
}

SCSS

$custom: #1b2197;
$custom-light: #705eb7;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2197",
  "rgb": {
    "r": 27,
    "g": 33,
    "b": 151
  },
  "hsl": {
    "h": 237.097,
    "s": 69.663,
    "l": 34.902
  },
  "oklch": {
    "l": 0.34615,
    "c": 0.18487,
    "h": 269.6
  },
  "luminance": 0.03555
}

Semantic roles & 50–950 ramp

primary

#1B2197

secondary

#C1BC4C

accent

#E43BEC

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1B2197

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

Preview Lab → · Contrast checker → · Palette generator →