#1A3289#1A3289

#1A3289 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.0% C 0.148 H 266.7°. Best body text is #FFFFFF at 11.28:1 contrast (WCAG AA passes).

Color values

HEX	#1A3289
RGB	rgb(26, 50, 137)
HSL	hsl(227, 68%, 32%)
HSV	hsv(227, 81%, 54%)
CMYK	cmyk(81%, 63.5%, 0%, 46.3%)
CIE-LAB	lab(24.66, 24.72, -51.00)
CIE-LCH	lch(24.66, 56.67, 295.86°)
OKLab	oklab(35.99% -0.0086 -0.1475)
OKLCH	oklch(35.99% 0.148 266.7)
XYZ	xyz(6.0804, 4.3063, 24.1728)
Luminance	0.0431 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3289 #89711A

analogous

#1A6A89 #1A3289 #3A1A89

triadic

#1A3289 #891A32 #32891A

tetradic

#1A3289 #891A6A #89711A #1A893A

square

#1A3289 #891A6A #89711A #1A893A

split-complementary

#1A3289 #893A1A #6A891A

monochromatic

#060C22 #101F56 #1A3289 #2445BC #4263DB

Accessibility & contrast

On white

11.28

#1A3289 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#1A3289 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3289

11.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3289	#FFFFFF	#000000	##FFFFFF
##1A3289	1.00	11.28	1.86	11.28
#FFFFFF	11.28	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00408C

Deuteranopia (green-blind)

#003587

Tritanopia (blue-blind)

#004958

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1a3289;
/* rgb */ color: rgb(26, 50, 137);
/* oklch */ color: oklch(36.0% 0.148 266.7);

Tailwind

colors: {
  custom: {
    50: '#6b69ac',
    500: '#1a3289',
    950: '#000000',
  },
}

SCSS

$custom: #1a3289;
$custom-light: #6b69ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3289",
  "rgb": {
    "r": 26,
    "g": 50,
    "b": 137
  },
  "hsl": {
    "h": 227.027,
    "s": 68.098,
    "l": 31.961
  },
  "oklch": {
    "l": 0.35995,
    "c": 0.14776,
    "h": 266.7
  },
  "luminance": 0.04307
}

Semantic roles & 50–950 ramp

primary

#1A3289

secondary

#BCA243

accent

#C53DEB

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #1A3289

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

Preview Lab → · Contrast checker → · Palette generator →