#1B145A#1B145A

#1B145A is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.7% C 0.119 H 278.4°. Best body text is #FFFFFF at 16.22:1 contrast (WCAG AA passes).

Color values

HEX	#1B145A
RGB	rgb(27, 20, 90)
HSL	hsl(246, 64%, 22%)
HSV	hsv(246, 78%, 35%)
CMYK	cmyk(70%, 77.8%, 0%, 64.7%)
CIE-LAB	lab(12.42, 27.10, -40.68)
CIE-LCH	lch(12.42, 48.89, 303.67°)
OKLab	oklab(25.67% 0.0174 -0.1174)
OKLCH	oklch(25.67% 0.119 278.4)
XYZ	xyz(2.5470, 1.4713, 9.8206)
Luminance	0.0147 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B145A #535A14

analogous

#14305A #1B145A #3E145A

triadic

#1B145A #5A1B14 #145A1B

tetradic

#1B145A #5A1430 #535A14 #145A3E

square

#1B145A #5A1430 #535A14 #145A3E

split-complementary

#1B145A #5A3E14 #305A14

monochromatic

#080619 #0C0928 #1B145A #2A1F8C #392ABE

Accessibility & contrast

On white

16.22

#1B145A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#1B145A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B145A

16.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B145A	#FFFFFF	#000000	##FFFFFF
##1B145A	1.00	16.22	1.29	16.22
#FFFFFF	16.22	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00235C

Deuteranopia (green-blind)

#001D59

Tritanopia (blue-blind)

#002735

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #1b145a;
/* rgb */ color: rgb(27, 20, 90);
/* oklch */ color: oklch(25.7% 0.119 278.4);

Tailwind

colors: {
  custom: {
    50: '#615289',
    500: '#1b145a',
    950: '#000000',
  },
}

SCSS

$custom: #1b145a;
$custom-light: #615289;
$custom-dark: #000000;

JSON

{
  "hex": "#1b145a",
  "rgb": {
    "r": 27,
    "g": 20,
    "b": 90
  },
  "hsl": {
    "h": 246,
    "s": 63.636,
    "l": 21.569
  },
  "oklch": {
    "l": 0.25673,
    "c": 0.11873,
    "h": 278.4
  },
  "luminance": 0.01472
}

Semantic roles & 50–950 ramp

primary

#1B145A

secondary

#899238

accent

#E741D6

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1B145A

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

Preview Lab → · Contrast checker → · Palette generator →