#1B116A#1B116A

#1B116A is a dark, vivid blue. Relative luminance 0.017; OKLCH L 27.1% C 0.143 H 276.0°. Best body text is #FFFFFF at 15.73:1 contrast (WCAG AA passes).

Color values

HEX	#1B116A
RGB	rgb(27, 17, 106)
HSL	hsl(247, 72%, 24%)
HSV	hsv(247, 84%, 42%)
CMYK	cmyk(74.5%, 84%, 0%, 58.4%)
CIE-LAB	lab(13.68, 34.43, -49.26)
CIE-LCH	lch(13.68, 60.10, 304.95°)
OKLab	oklab(27.11% 0.015 -0.1424)
OKLCH	oklch(27.11% 0.143 276)
XYZ	xyz(3.2531, 1.6742, 13.7846)
Luminance	0.0168 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B116A #606A11

analogous

#11346A #1B116A #48116A

triadic

#1B116A #6A1B11 #116A1B

tetradic

#1B116A #6A1134 #606A11 #116A48

square

#1B116A #6A1134 #606A11 #116A48

split-complementary

#1B116A #6A4811 #346A11

monochromatic

#07041A #0E0935 #1B116A #28199F #3622D3

Accessibility & contrast

On white

15.73

#1B116A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#1B116A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B116A

15.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B116A	#FFFFFF	#000000	##FFFFFF
##1B116A	1.00	15.73	1.34	15.73
#FFFFFF	15.73	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00276C

Deuteranopia (green-blind)

#001F68

Tritanopia (blue-blind)

#002C3E

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #1b116a;
/* rgb */ color: rgb(27, 17, 106);
/* oklch */ color: oklch(27.1% 0.143 276.0);

Tailwind

colors: {
  custom: {
    50: '#665296',
    500: '#1b116a',
    950: '#000000',
  },
}

SCSS

$custom: #1b116a;
$custom-light: #665296;
$custom-dark: #000000;

JSON

{
  "hex": "#1b116a",
  "rgb": {
    "r": 27,
    "g": 17,
    "b": 106
  },
  "hsl": {
    "h": 246.742,
    "s": 72.358,
    "l": 24.118
  },
  "oklch": {
    "l": 0.27106,
    "c": 0.14319,
    "h": 276
  },
  "luminance": 0.01675
}

Semantic roles & 50–950 ramp

primary

#1B116A

secondary

#96A235

accent

#EF39DB

background

#F6F4F9

surface

#EBE7F2

border

#C6C3CC

text

#07020D

muted

#7A787E

Preview Lab

Preview with #1B116A

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

Preview Lab → · Contrast checker → · Palette generator →