#1A3AA1#1A3AA1

#1A3AA1 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.8% C 0.171 H 265.5°. Best body text is #FFFFFF at 9.71:1 contrast (WCAG AA passes).

Color values

HEX	#1A3AA1
RGB	rgb(26, 58, 161)
HSL	hsl(226, 72%, 37%)
HSV	hsv(226, 84%, 63%)
CMYK	cmyk(83.9%, 64%, 0%, 36.9%)
CIE-LAB	lab(28.95, 28.71, -58.71)
CIE-LCH	lch(28.95, 65.35, 296.06°)
OKLab	oklab(39.84% -0.0133 -0.17)
OKLCH	oklch(39.84% 0.171 265.5)
XYZ	xyz(8.3698, 5.8179, 34.3931)
Luminance	0.0582 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3AA1 #A1811A

analogous

#1A7EA1 #1A3AA1 #3E1AA1

triadic

#1A3AA1 #A11A3A #3AA11A

tetradic

#1A3AA1 #A11A7E #A1811A #1AA13E

square

#1A3AA1 #A11A7E #A1811A #1AA13E

split-complementary

#1A3AA1 #A13E1A #7EA11A

monochromatic

#091438 #11276C #1A3AA1 #234DD6 #5275E3

Accessibility & contrast

On white

9.71

#1A3AA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#1A3AA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3AA1

9.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3AA1	#FFFFFF	#000000	##FFFFFF
##1A3AA1	1.00	9.71	2.16	9.71
#FFFFFF	9.71	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA4

Deuteranopia (green-blind)

#003E9F

Tritanopia (blue-blind)

#005568

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1a3aa1;
/* rgb */ color: rgb(26, 58, 161);
/* oklch */ color: oklch(39.8% 0.171 265.5);

Tailwind

colors: {
  custom: {
    50: '#706fbe',
    500: '#1a3aa1',
    950: '#000000',
  },
}

SCSS

$custom: #1a3aa1;
$custom-light: #706fbe;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3aa1",
  "rgb": {
    "r": 26,
    "g": 58,
    "b": 161
  },
  "hsl": {
    "h": 225.778,
    "s": 72.193,
    "l": 36.667
  },
  "oklch": {
    "l": 0.39842,
    "c": 0.17051,
    "h": 265.5
  },
  "luminance": 0.05819
}

Semantic roles & 50–950 ramp

primary

#1A3AA1

secondary

#C6AA51

accent

#C439EF

background

#F7F6FB

surface

#EDECF7

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1A3AA1

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

Preview Lab → · Contrast checker → · Palette generator →