#1A105B#1A105B

#1A105B is a dark, vivid blue. Relative luminance 0.013; OKLCH L 25.1% C 0.125 H 278.5°. Best body text is #FFFFFF at 16.55:1 contrast (WCAG AA passes).

Color values

HEX	#1A105B
RGB	rgb(26, 16, 91)
HSL	hsl(248, 70%, 21%)
HSV	hsv(248, 82%, 36%)
CMYK	cmyk(71.4%, 82.4%, 0%, 64.3%)
CIE-LAB	lab(11.59, 29.76, -42.74)
CIE-LCH	lch(11.59, 52.08, 304.85°)
OKLab	oklab(25.09% 0.0184 -0.1234)
OKLCH	oklch(25.09% 0.125 278.5)
XYZ	xyz(2.4990, 1.3453, 10.0235)
Luminance	0.0135 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A105B #515B10

analogous

#102B5B #1A105B #3F105B

triadic

#1A105B #5B1A10 #105B1A

tetradic

#1A105B #5B102B #515B10 #105B3F

square

#1A105B #5B102B #515B10 #105B3F

split-complementary

#1A105B #5B3F10 #2B5B10

monochromatic

#07051A #0B0727 #1A105B #29198F #3822C3

Accessibility & contrast

On white

16.55

#1A105B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#1A105B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A105B

16.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A105B	#FFFFFF	#000000	##FFFFFF
##1A105B	1.00	16.55	1.27	16.55
#FFFFFF	16.55	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00225D

Deuteranopia (green-blind)

#001C5A

Tritanopia (blue-blind)

#002635

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #1a105b;
/* rgb */ color: rgb(26, 16, 91);
/* oklch */ color: oklch(25.1% 0.125 278.5);

Tailwind

colors: {
  custom: {
    50: '#62508a',
    500: '#1a105b',
    950: '#000000',
  },
}

SCSS

$custom: #1a105b;
$custom-light: #62508a;
$custom-dark: #000000;

JSON

{
  "hex": "#1a105b",
  "rgb": {
    "r": 26,
    "g": 16,
    "b": 91
  },
  "hsl": {
    "h": 248,
    "s": 70.093,
    "l": 20.98
  },
  "oklch": {
    "l": 0.25094,
    "c": 0.1248,
    "h": 278.5
  },
  "luminance": 0.01346
}

Semantic roles & 50–950 ramp

primary

#1A105B

secondary

#879433

accent

#ED3BD5

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1A105B

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

Preview Lab → · Contrast checker → · Palette generator →