#1A3389#1A3389

#1A3389 is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.2% C 0.146 H 266.4°. Best body text is #FFFFFF at 11.18:1 contrast (WCAG AA passes).

Color values

HEX	#1A3389
RGB	rgb(26, 51, 137)
HSL	hsl(226, 68%, 32%)
HSV	hsv(226, 81%, 54%)
CMYK	cmyk(81%, 62.8%, 0%, 46.3%)
CIE-LAB	lab(24.93, 24.02, -50.56)
CIE-LCH	lch(24.93, 55.98, 295.42°)
OKLab	oklab(36.2% -0.0092 -0.1462)
OKLCH	oklch(36.2% 0.146 266.4)
XYZ	xyz(6.1236, 4.3927, 24.1872)
Luminance	0.0439 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3389 #89701A

analogous

#1A6B89 #1A3389 #381A89

triadic

#1A3389 #891A33 #33891A

tetradic

#1A3389 #891A6B #89701A #1A8938

square

#1A3389 #891A6B #89701A #1A8938

split-complementary

#1A3389 #89381A #6B891A

monochromatic

#060D22 #102056 #1A3389 #2446BC #4265DB

Accessibility & contrast

On white

11.18

#1A3389 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#1A3389 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3389

11.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3389	#FFFFFF	#000000	##FFFFFF
##1A3389	1.00	11.18	1.88	11.18
#FFFFFF	11.18	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00408C

Deuteranopia (green-blind)

#003687

Tritanopia (blue-blind)

#004959

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1a3389;
/* rgb */ color: rgb(26, 51, 137);
/* oklch */ color: oklch(36.2% 0.146 266.4);

Tailwind

colors: {
  custom: {
    50: '#6a6aac',
    500: '#1a3389',
    950: '#000000',
  },
}

SCSS

$custom: #1a3389;
$custom-light: #6a6aac;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3389",
  "rgb": {
    "r": 26,
    "g": 51,
    "b": 137
  },
  "hsl": {
    "h": 226.486,
    "s": 68.098,
    "l": 31.961
  },
  "oklch": {
    "l": 0.36196,
    "c": 0.14649,
    "h": 266.4
  },
  "luminance": 0.04393
}

Semantic roles & 50–950 ramp

primary

#1A3389

secondary

#BCA143

accent

#C43DEB

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #1A3389

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

Preview Lab → · Contrast checker → · Palette generator →