#1B1886#1B1886

#1B1886 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.4% C 0.172 H 271.7°. Best body text is #FFFFFF at 13.80:1 contrast (WCAG AA passes).

Color values

HEX	#1B1886
RGB	rgb(27, 24, 134)
HSL	hsl(242, 70%, 31%)
HSV	hsv(242, 82%, 53%)
CMYK	cmyk(79.9%, 82.1%, 0%, 47.5%)
CIE-LAB	lab(18.40, 40.09, -59.44)
CIE-LCH	lch(18.40, 71.69, 304.00°)
OKLab	oklab(31.4% 0.0051 -0.172)
OKLCH	oklch(31.4% 0.172 271.7)
XYZ	xyz(5.0803, 2.6070, 22.7851)
Luminance	0.0261 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1886 #838618

analogous

#184C86 #1B1886 #521886

triadic

#1B1886 #861B18 #18861B

tetradic

#1B1886 #86184C #838618 #188652

square

#1B1886 #86184C #838618 #188652

split-complementary

#1B1886 #865218 #4C8618

monochromatic

#06051E #110F52 #1B1886 #2521BA #413CDC

Accessibility & contrast

On white

13.80

#1B1886 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#1B1886 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1886

13.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1886	#FFFFFF	#000000	##FFFFFF
##1B1886	1.00	13.80	1.52	13.80
#FFFFFF	13.80	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003289

Deuteranopia (green-blind)

#002784

Tritanopia (blue-blind)

#003A4F

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1b1886;
/* rgb */ color: rgb(27, 24, 134);
/* oklch */ color: oklch(31.4% 0.172 271.7);

Tailwind

colors: {
  custom: {
    50: '#6d58aa',
    500: '#1b1886',
    950: '#000000',
  },
}

SCSS

$custom: #1b1886;
$custom-light: #6d58aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1886",
  "rgb": {
    "r": 27,
    "g": 24,
    "b": 134
  },
  "hsl": {
    "h": 241.636,
    "s": 69.62,
    "l": 30.98
  },
  "oklch": {
    "l": 0.31396,
    "c": 0.17211,
    "h": 271.7
  },
  "luminance": 0.02608
}

Semantic roles & 50–950 ramp

primary

#1B1886

secondary

#B6BA40

accent

#EC3BE8

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080310

muted

#7B787F

Preview Lab

Preview with #1B1886

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

Preview Lab → · Contrast checker → · Palette generator →