#1B1D86#1B1D86

#1B1D86 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.1% C 0.168 H 271.1°. Best body text is #FFFFFF at 13.40:1 contrast (WCAG AA passes).

Color values

HEX	#1B1D86
RGB	rgb(27, 29, 134)
HSL	hsl(239, 66%, 32%)
HSV	hsv(239, 80%, 53%)
CMYK	cmyk(79.9%, 78.4%, 0%, 47.5%)
CIE-LAB	lab(19.36, 37.31, -57.84)
CIE-LCH	lch(19.36, 68.83, 302.83°)
OKLab	oklab(32.07% 0.0033 -0.1675)
OKLCH	oklch(32.07% 0.168 271.1)
XYZ	xyz(5.1930, 2.8324, 22.8227)
Luminance	0.0283 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1D86 #86841B

analogous

#1B5386 #1B1D86 #4F1B86

triadic

#1B1D86 #861B1D #1D861B

tetradic

#1B1D86 #861B53 #86841B #1B864F

square

#1B1D86 #861B53 #86841B #1B864F

split-complementary

#1B1D86 #864F1B #53861B

monochromatic

#060720 #111253 #1B1D86 #2528B9 #4245D9

Accessibility & contrast

On white

13.40

#1B1D86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#1B1D86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1D86

13.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1D86	#FFFFFF	#000000	##FFFFFF
##1B1D86	1.00	13.40	1.57	13.40
#FFFFFF	13.40	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003489

Deuteranopia (green-blind)

#002984

Tritanopia (blue-blind)

#003C50

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1b1d86;
/* rgb */ color: rgb(27, 29, 134);
/* oklch */ color: oklch(32.1% 0.168 271.1);

Tailwind

colors: {
  custom: {
    50: '#6c5baa',
    500: '#1b1d86',
    950: '#000000',
  },
}

SCSS

$custom: #1b1d86;
$custom-light: #6c5baa;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1d86",
  "rgb": {
    "r": 27,
    "g": 29,
    "b": 134
  },
  "hsl": {
    "h": 238.879,
    "s": 66.46,
    "l": 31.569
  },
  "oklch": {
    "l": 0.32073,
    "c": 0.1675,
    "h": 271.1
  },
  "luminance": 0.02833
}

Semantic roles & 50–950 ramp

primary

#1B1D86

secondary

#B9B744

accent

#E63EE9

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1B1D86

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

Preview Lab → · Contrast checker → · Palette generator →