#1B1686#1B1686

#1B1686 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 31.2% C 0.174 H 271.9°. Best body text is #FFFFFF at 13.95:1 contrast (WCAG AA passes).

Color values

HEX	#1B1686
RGB	rgb(27, 22, 134)
HSL	hsl(243, 72%, 31%)
HSV	hsv(243, 84%, 53%)
CMYK	cmyk(79.9%, 83.6%, 0%, 47.5%)
CIE-LAB	lab(18.04, 41.12, -60.02)
CIE-LCH	lch(18.04, 72.75, 304.41°)
OKLab	oklab(31.15% 0.0057 -0.1737)
OKLCH	oklch(31.15% 0.174 271.9)
XYZ	xyz(5.0405, 2.5275, 22.7718)
Luminance	0.0253 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1686 #818616

analogous

#164986 #1B1686 #531686

triadic

#1B1686 #861B16 #16861B

tetradic

#1B1686 #861649 #818616 #168653

square

#1B1686 #861649 #818616 #168653

split-complementary

#1B1686 #865316 #498616

monochromatic

#06051D #100D51 #1B1686 #261FBB #3F38DE

Accessibility & contrast

On white

13.95

#1B1686 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#1B1686 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1686

13.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1686	#FFFFFF	#000000	##FFFFFF
##1B1686	1.00	13.95	1.51	13.95
#FFFFFF	13.95	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003189

Deuteranopia (green-blind)

#002684

Tritanopia (blue-blind)

#003A4F

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #1b1686;
/* rgb */ color: rgb(27, 22, 134);
/* oklch */ color: oklch(31.2% 0.174 271.9);

Tailwind

colors: {
  custom: {
    50: '#6d57ab',
    500: '#1b1686',
    950: '#000000',
  },
}

SCSS

$custom: #1b1686;
$custom-light: #6d57ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1686",
  "rgb": {
    "r": 27,
    "g": 22,
    "b": 134
  },
  "hsl": {
    "h": 242.679,
    "s": 71.795,
    "l": 30.588
  },
  "oklch": {
    "l": 0.31151,
    "c": 0.17379,
    "h": 271.9
  },
  "luminance": 0.02528
}

Semantic roles & 50–950 ramp

primary

#1B1686

secondary

#B5BA3E

accent

#EF39E6

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080310

muted

#7B787F

Preview Lab

Preview with #1B1686

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

Preview Lab → · Contrast checker → · Palette generator →