#1B136A#1B136A

#1B136A is a dark, vivid blue. Relative luminance 0.017; OKLCH L 27.4% C 0.141 H 275.7°. Best body text is #FFFFFF at 15.58:1 contrast (WCAG AA passes).

Color values

HEX	#1B136A
RGB	rgb(27, 19, 106)
HSL	hsl(246, 70%, 25%)
HSV	hsv(246, 82%, 42%)
CMYK	cmyk(74.5%, 82.1%, 0%, 58.4%)
CIE-LAB	lab(14.05, 33.33, -48.63)
CIE-LCH	lch(14.05, 58.96, 304.43°)
OKLab	oklab(27.37% 0.0141 -0.1406)
OKLCH	oklch(27.37% 0.141 275.7)
XYZ	xyz(3.2855, 1.7391, 13.7954)
Luminance	0.0174 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B136A #626A13

analogous

#13376A #1B136A #47136A

triadic

#1B136A #6A1B13 #136A1B

tetradic

#1B136A #6A1337 #626A13 #136A47

square

#1B136A #6A1337 #626A13 #136A47

split-complementary

#1B136A #6A4713 #376A13

monochromatic

#07051A #0E0A36 #1B136A #281C9E #3526D2

Accessibility & contrast

On white

15.58

#1B136A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#1B136A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B136A

15.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B136A	#FFFFFF	#000000	##FFFFFF
##1B136A	1.00	15.58	1.35	15.58
#FFFFFF	15.58	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00276C

Deuteranopia (green-blind)

#002068

Tritanopia (blue-blind)

#002D3E

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #1b136a;
/* rgb */ color: rgb(27, 19, 106);
/* oklch */ color: oklch(27.4% 0.141 275.7);

Tailwind

colors: {
  custom: {
    50: '#665396',
    500: '#1b136a',
    950: '#000000',
  },
}

SCSS

$custom: #1b136a;
$custom-light: #665396;
$custom-dark: #000000;

JSON

{
  "hex": "#1b136a",
  "rgb": {
    "r": 27,
    "g": 19,
    "b": 106
  },
  "hsl": {
    "h": 245.517,
    "s": 69.6,
    "l": 24.51
  },
  "oklch": {
    "l": 0.2737,
    "c": 0.14131,
    "h": 275.7
  },
  "luminance": 0.01739
}

Semantic roles & 50–950 ramp

primary

#1B136A

secondary

#98A138

accent

#EC3BDC

background

#F6F4F9

surface

#EBE7F2

border

#C6C3CC

text

#07020D

muted

#7A787E

Preview Lab

Preview with #1B136A

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

Preview Lab → · Contrast checker → · Palette generator →