#1A1D73#1A1D73

#1A1D73 is a dark, vivid blue. Relative luminance 0.023; OKLCH L 29.9% C 0.143 H 272.2°. Best body text is #FFFFFF at 14.31:1 contrast (WCAG AA passes).

Color values

HEX	#1A1D73
RGB	rgb(26, 29, 115)
HSL	hsl(238, 63%, 28%)
HSV	hsv(238, 77%, 45%)
CMYK	cmyk(77.4%, 74.8%, 0%, 54.9%)
CIE-LAB	lab(17.16, 30.39, -49.37)
CIE-LCH	lch(17.16, 57.97, 301.62°)
OKLab	oklab(29.86% 0.0055 -0.1429)
OKLCH	oklch(29.86% 0.143 272.2)
XYZ	xyz(3.9588, 2.3357, 16.4585)
Luminance	0.0234 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A1D73 #73701A

analogous

#1A4973 #1A1D73 #441A73

triadic

#1A1D73 #731A1D #1D731A

tetradic

#1A1D73 #731A49 #73701A #1A7344

square

#1A1D73 #731A49 #73701A #1A7344

split-complementary

#1A1D73 #73441A #49731A

monochromatic

#060619 #0F1041 #1A1D73 #252AA5 #363BD2

Accessibility & contrast

On white

14.31

#1A1D73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#1A1D73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A1D73

14.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A1D73	#FFFFFF	#000000	##FFFFFF
##1A1D73	1.00	14.31	1.47	14.31
#FFFFFF	14.31	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E76

Deuteranopia (green-blind)

#002671

Tritanopia (blue-blind)

#003546

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #1a1d73;
/* rgb */ color: rgb(26, 29, 115);
/* oklch */ color: oklch(29.9% 0.143 272.2);

Tailwind

colors: {
  custom: {
    50: '#675a9c',
    500: '#1a1d73',
    950: '#000000',
  },
}

SCSS

$custom: #1a1d73;
$custom-light: #675a9c;
$custom-dark: #000000;

JSON

{
  "hex": "#1a1d73",
  "rgb": {
    "r": 26,
    "g": 29,
    "b": 115
  },
  "hsl": {
    "h": 237.978,
    "s": 63.121,
    "l": 27.647
  },
  "oklch": {
    "l": 0.29857,
    "c": 0.14297,
    "h": 272.2
  },
  "luminance": 0.02336
}

Semantic roles & 50–950 ramp

primary

#1A1D73

secondary

#A8A441

accent

#E142E6

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1A1D73

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

Preview Lab → · Contrast checker → · Palette generator →