#1B1064#1B1064

#1B1064 is a dark, vivid blue. Relative luminance 0.015; OKLCH L 26.3% C 0.136 H 277.3°. Best body text is #FFFFFF at 16.09:1 contrast (WCAG AA passes).

Color values

HEX	#1B1064
RGB	rgb(27, 16, 100)
HSL	hsl(248, 72%, 23%)
HSV	hsv(248, 84%, 39%)
CMYK	cmyk(73%, 84%, 0%, 60.8%)
CIE-LAB	lab(12.76, 32.95, -46.82)
CIE-LCH	lch(12.76, 57.25, 305.13°)
OKLab	oklab(26.25% 0.0173 -0.1353)
OKLCH	oklch(26.25% 0.136 277.3)
XYZ	xyz(2.9368, 1.5234, 12.1934)
Luminance	0.0152 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1064 #596410

analogous

#102F64 #1B1064 #451064

triadic

#1B1064 #641B10 #10641B

tetradic

#1B1064 #64102F #596410 #106445

square

#1B1064 #64102F #596410 #106445

split-complementary

#1B1064 #644510 #2F6410

monochromatic

#07041A #0D082F #1B1064 #291899 #3721CE

Accessibility & contrast

On white

16.09

#1B1064 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#1B1064 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1064

16.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1064	#FFFFFF	#000000	##FFFFFF
##1B1064	1.00	16.09	1.30	16.09
#FFFFFF	16.09	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002466

Deuteranopia (green-blind)

#001D63

Tritanopia (blue-blind)

#002A3A

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #1b1064;
/* rgb */ color: rgb(27, 16, 100);
/* oklch */ color: oklch(26.3% 0.136 277.3);

Tailwind

colors: {
  custom: {
    50: '#645191',
    500: '#1b1064',
    950: '#000000',
  },
}

SCSS

$custom: #1b1064;
$custom-light: #645191;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1064",
  "rgb": {
    "r": 27,
    "g": 16,
    "b": 100
  },
  "hsl": {
    "h": 247.857,
    "s": 72.414,
    "l": 22.745
  },
  "oklch": {
    "l": 0.26251,
    "c": 0.1364,
    "h": 277.3
  },
  "luminance": 0.01524
}

Semantic roles & 50–950 ramp

primary

#1B1064

secondary

#8F9D33

accent

#EF39D7

background

#F6F4F9

surface

#EBE7F1

border

#C6C3CB

text

#06020D

muted

#7A787E

Preview Lab

Preview with #1B1064

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

Preview Lab → · Contrast checker → · Palette generator →