#1B116C#1B116C

#1B116C is a dark, vivid blue. Relative luminance 0.017; OKLCH L 27.4% C 0.146 H 275.7°. Best body text is #FFFFFF at 15.63:1 contrast (WCAG AA passes).

Color values

HEX	#1B116C
RGB	rgb(27, 17, 108)
HSL	hsl(247, 73%, 25%)
HSV	hsv(247, 84%, 42%)
CMYK	cmyk(75%, 84.3%, 0%, 57.6%)
CIE-LAB	lab(13.92, 35.10, -50.16)
CIE-LCH	lch(13.92, 61.22, 304.98°)
OKLab	oklab(27.35% 0.0144 -0.145)
OKLCH	oklch(27.35% 0.146 275.7)
XYZ	xyz(3.3583, 1.7163, 14.3387)
Luminance	0.0172 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B116C #626C11

analogous

#11356C #1B116C #48116C

triadic

#1B116C #6C1B11 #116C1B

tetradic

#1B116C #6C1135 #626C11 #116C48

square

#1B116C #6C1135 #626C11 #116C48

split-complementary

#1B116C #6C4811 #356C11

monochromatic

#07041A #0E0937 #1B116C #2819A1 #3522D6

Accessibility & contrast

On white

15.63

#1B116C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#1B116C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B116C

15.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B116C	#FFFFFF	#000000	##FFFFFF
##1B116C	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)

#00276F

Deuteranopia (green-blind)

#001F6A

Tritanopia (blue-blind)

#002D3F

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #1b116c;
/* rgb */ color: rgb(27, 17, 108);
/* oklch */ color: oklch(27.4% 0.146 275.7);

Tailwind

colors: {
  custom: {
    50: '#665297',
    500: '#1b116c',
    950: '#000000',
  },
}

SCSS

$custom: #1b116c;
$custom-light: #665297;
$custom-dark: #000000;

JSON

{
  "hex": "#1b116c",
  "rgb": {
    "r": 27,
    "g": 17,
    "b": 108
  },
  "hsl": {
    "h": 246.593,
    "s": 72.8,
    "l": 24.51
  },
  "oklch": {
    "l": 0.2735,
    "c": 0.14574,
    "h": 275.7
  },
  "luminance": 0.01717
}

Semantic roles & 50–950 ramp

primary

#1B116C

secondary

#98A435

accent

#EF38DB

background

#F6F4F9

surface

#EBE7F2

border

#C6C3CC

text

#07020E

muted

#7A787E

Preview Lab

Preview with #1B116C

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

Preview Lab → · Contrast checker → · Palette generator →