#1B1A86#1B1A86

#1B1A86 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.7% C 0.170 H 271.5°. Best body text is #FFFFFF at 13.65:1 contrast (WCAG AA passes).

Color values

HEX	#1B1A86
RGB	rgb(27, 26, 134)
HSL	hsl(241, 68%, 31%)
HSV	hsv(241, 81%, 53%)
CMYK	cmyk(79.9%, 80.6%, 0%, 47.5%)
CIE-LAB	lab(18.77, 39.01, -58.82)
CIE-LCH	lch(18.77, 70.58, 303.55°)
OKLab	oklab(31.66% 0.0044 -0.1703)
OKLCH	oklch(31.66% 0.17 271.5)
XYZ	xyz(5.1230, 2.6925, 22.7993)
Luminance	0.0269 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1A86 #85861A

analogous

#1A4F86 #1B1A86 #511A86

triadic

#1B1A86 #861B1A #1A861B

tetradic

#1B1A86 #861A4F #85861A #1A8651

square

#1B1A86 #861A4F #85861A #1A8651

split-complementary

#1B1A86 #86511A #4F861A

monochromatic

#06061F #111053 #1B1A86 #2524B9 #4240DA

Accessibility & contrast

On white

13.65

#1B1A86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#1B1A86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1A86

13.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1A86	#FFFFFF	#000000	##FFFFFF
##1B1A86	1.00	13.65	1.54	13.65
#FFFFFF	13.65	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003389

Deuteranopia (green-blind)

#002884

Tritanopia (blue-blind)

#003B50

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1b1a86;
/* rgb */ color: rgb(27, 26, 134);
/* oklch */ color: oklch(31.7% 0.170 271.5);

Tailwind

colors: {
  custom: {
    50: '#6c59aa',
    500: '#1b1a86',
    950: '#000000',
  },
}

SCSS

$custom: #1b1a86;
$custom-light: #6c59aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1a86",
  "rgb": {
    "r": 27,
    "g": 26,
    "b": 134
  },
  "hsl": {
    "h": 240.556,
    "s": 67.5,
    "l": 31.373
  },
  "oklch": {
    "l": 0.31657,
    "c": 0.17034,
    "h": 271.5
  },
  "luminance": 0.02693
}

Semantic roles & 50–950 ramp

primary

#1B1A86

secondary

#B8B942

accent

#EA3DE9

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080310

muted

#7B787F

Preview Lab

Preview with #1B1A86

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

Preview Lab → · Contrast checker → · Palette generator →