#1A3A9D#1A3A9D

#1A3A9D is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.5% C 0.165 H 265.4°. Best body text is #FFFFFF at 9.83:1 contrast (WCAG AA passes).

Color values

HEX	#1A3A9D
RGB	rgb(26, 58, 157)
HSL	hsl(225, 72%, 36%)
HSV	hsv(225, 83%, 62%)
CMYK	cmyk(83.4%, 63.1%, 0%, 38.4%)
CIE-LAB	lab(28.59, 27.14, -56.87)
CIE-LCH	lch(28.59, 63.02, 295.51°)
OKLab	oklab(39.46% -0.0133 -0.1646)
OKLCH	oklch(39.46% 0.165 265.4)
XYZ	xyz(8.0227, 5.6791, 32.5651)
Luminance	0.0568 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3A9D #9D7D1A

analogous

#1A7B9D #1A3A9D #3C1A9D

triadic

#1A3A9D #9D1A3A #3A9D1A

tetradic

#1A3A9D #9D1A7B #9D7D1A #1A9D3C

square

#1A3A9D #9D1A7B #9D7D1A #1A9D3C

split-complementary

#1A3A9D #9D3C1A #7B9D1A

monochromatic

#091334 #112768 #1A3A9D #234DD2 #4F73E2

Accessibility & contrast

On white

9.83

#1A3A9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#1A3A9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3A9D

9.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3A9D	#FFFFFF	#000000	##FFFFFF
##1A3A9D	1.00	9.83	2.14	9.83
#FFFFFF	9.83	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA0

Deuteranopia (green-blind)

#003D9B

Tritanopia (blue-blind)

#005466

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1a3a9d;
/* rgb */ color: rgb(26, 58, 157);
/* oklch */ color: oklch(39.5% 0.165 265.4);

Tailwind

colors: {
  custom: {
    50: '#6f6fbb',
    500: '#1a3a9d',
    950: '#000000',
  },
}

SCSS

$custom: #1a3a9d;
$custom-light: #6f6fbb;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3a9d",
  "rgb": {
    "r": 26,
    "g": 58,
    "b": 157
  },
  "hsl": {
    "h": 225.344,
    "s": 71.585,
    "l": 35.882
  },
  "oklch": {
    "l": 0.39464,
    "c": 0.16516,
    "h": 265.4
  },
  "luminance": 0.0568
}

Semantic roles & 50–950 ramp

primary

#1A3A9D

secondary

#C4A84E

accent

#C239EE

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1A3A9D

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

Preview Lab → · Contrast checker → · Palette generator →