#1B1369#1B1369

#1B1369 is a dark, vivid blue. Relative luminance 0.017; OKLCH L 27.3% C 0.140 H 275.9°. Best body text is #FFFFFF at 15.63:1 contrast (WCAG AA passes).

Color values

HEX	#1B1369
RGB	rgb(27, 19, 105)
HSL	hsl(246, 69%, 24%)
HSV	hsv(246, 82%, 41%)
CMYK	cmyk(74.3%, 81.9%, 0%, 58.8%)
CIE-LAB	lab(13.93, 32.99, -48.18)
CIE-LCH	lch(13.93, 58.39, 304.40°)
OKLab	oklab(27.25% 0.0143 -0.1393)
OKLCH	oklch(27.25% 0.14 275.9)
XYZ	xyz(3.2338, 1.7184, 13.5231)
Luminance	0.0172 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1369 #616913

analogous

#133669 #1B1369 #461369

triadic

#1B1369 #691B13 #13691B

tetradic

#1B1369 #691336 #616913 #136946

square

#1B1369 #691336 #616913 #136946

split-complementary

#1B1369 #694613 #366913

monochromatic

#07051A #0E0A35 #1B1369 #281C9D #3626D1

Accessibility & contrast

On white

15.63

#1B1369 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#1B1369 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1369

15.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1369	#FFFFFF	#000000	##FFFFFF
##1B1369	1.00	15.63	1.34	15.63
#FFFFFF	15.63	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00276B

Deuteranopia (green-blind)

#002067

Tritanopia (blue-blind)

#002D3E

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #1b1369;
/* rgb */ color: rgb(27, 19, 105);
/* oklch */ color: oklch(27.3% 0.140 275.9);

Tailwind

colors: {
  custom: {
    50: '#655395',
    500: '#1b1369',
    950: '#000000',
  },
}

SCSS

$custom: #1b1369;
$custom-light: #655395;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1369",
  "rgb": {
    "r": 27,
    "g": 19,
    "b": 105
  },
  "hsl": {
    "h": 245.581,
    "s": 69.355,
    "l": 24.314
  },
  "oklch": {
    "l": 0.27251,
    "c": 0.14002,
    "h": 275.9
  },
  "luminance": 0.01719
}

Semantic roles & 50–950 ramp

primary

#1B1369

secondary

#97A038

accent

#EC3CDC

background

#F6F4F9

surface

#EBE7F2

border

#C6C3CC

text

#07020D

muted

#7A787E

Preview Lab

Preview with #1B1369

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

Preview Lab → · Contrast checker → · Palette generator →