#1B145B#1B145B

#1B145B is a dark, vivid blue. Relative luminance 0.015; OKLCH L 25.8% C 0.120 H 278.2°. Best body text is #FFFFFF at 16.18:1 contrast (WCAG AA passes).

Color values

HEX	#1B145B
RGB	rgb(27, 20, 91)
HSL	hsl(246, 64%, 22%)
HSV	hsv(246, 78%, 36%)
CMYK	cmyk(70.3%, 78%, 0%, 64.3%)
CIE-LAB	lab(12.53, 27.47, -41.18)
CIE-LCH	lch(12.53, 49.50, 303.70°)
OKLab	oklab(25.78% 0.0172 -0.1189)
OKLCH	oklch(25.78% 0.12 278.2)
XYZ	xyz(2.5899, 1.4884, 10.0463)
Luminance	0.0149 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B145B #545B14

analogous

#14315B #1B145B #3F145B

triadic

#1B145B #5B1B14 #145B1B

tetradic

#1B145B #5B1431 #545B14 #145B3F

square

#1B145B #5B1431 #545B14 #145B3F

split-complementary

#1B145B #5B3F14 #315B14

monochromatic

#070619 #0C0929 #1B145B #2A1F8D #392ABF

Accessibility & contrast

On white

16.18

#1B145B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#1B145B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B145B

16.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B145B	#FFFFFF	#000000	##FFFFFF
##1B145B	1.00	16.18	1.30	16.18
#FFFFFF	16.18	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00235D

Deuteranopia (green-blind)

#001E5A

Tritanopia (blue-blind)

#002836

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #1b145b;
/* rgb */ color: rgb(27, 20, 91);
/* oklch */ color: oklch(25.8% 0.120 278.2);

Tailwind

colors: {
  custom: {
    50: '#62528a',
    500: '#1b145b',
    950: '#000000',
  },
}

SCSS

$custom: #1b145b;
$custom-light: #62528a;
$custom-dark: #000000;

JSON

{
  "hex": "#1b145b",
  "rgb": {
    "r": 27,
    "g": 20,
    "b": 91
  },
  "hsl": {
    "h": 245.915,
    "s": 63.964,
    "l": 21.765
  },
  "oklch": {
    "l": 0.25784,
    "c": 0.12013,
    "h": 278.2
  },
  "luminance": 0.01489
}

Semantic roles & 50–950 ramp

primary

#1B145B

secondary

#8A9338

accent

#E741D7

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1B145B

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

Preview Lab → · Contrast checker → · Palette generator →