#1A3AA0#1A3AA0

#1A3AA0 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.7% C 0.169 H 265.5°. Best body text is #FFFFFF at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#1A3AA0
RGB	rgb(26, 58, 160)
HSL	hsl(226, 72%, 36%)
HSV	hsv(226, 84%, 63%)
CMYK	cmyk(83.8%, 63.8%, 0%, 37.3%)
CIE-LAB	lab(28.86, 28.32, -58.25)
CIE-LCH	lch(28.86, 64.77, 295.92°)
OKLab	oklab(39.75% -0.0133 -0.1686)
OKLCH	oklch(39.75% 0.169 265.5)
XYZ	xyz(8.2820, 5.7828, 33.9306)
Luminance	0.0578 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3AA0 #A0801A

analogous

#1A7DA0 #1A3AA0 #3D1AA0

triadic

#1A3AA0 #A01A3A #3AA01A

tetradic

#1A3AA0 #A01A7D #A0801A #1AA03D

square

#1A3AA0 #A01A7D #A0801A #1AA03D

split-complementary

#1A3AA0 #A03D1A #7DA01A

monochromatic

#091437 #11276B #1A3AA0 #234DD5 #5274E3

Accessibility & contrast

On white

9.74

#1A3AA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#1A3AA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3AA0

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3AA0	#FFFFFF	#000000	##FFFFFF
##1A3AA0	1.00	9.74	2.16	9.74
#FFFFFF	9.74	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA3

Deuteranopia (green-blind)

#003E9E

Tritanopia (blue-blind)

#005567

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1a3aa0;
/* rgb */ color: rgb(26, 58, 160);
/* oklch */ color: oklch(39.7% 0.169 265.5);

Tailwind

colors: {
  custom: {
    50: '#706fbd',
    500: '#1a3aa0',
    950: '#000000',
  },
}

SCSS

$custom: #1a3aa0;
$custom-light: #706fbd;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3aa0",
  "rgb": {
    "r": 26,
    "g": 58,
    "b": 160
  },
  "hsl": {
    "h": 225.672,
    "s": 72.043,
    "l": 36.471
  },
  "oklch": {
    "l": 0.39747,
    "c": 0.16918,
    "h": 265.5
  },
  "luminance": 0.05784
}

Semantic roles & 50–950 ramp

primary

#1A3AA0

secondary

#C5A950

accent

#C339EF

background

#F7F6FB

surface

#EDECF7

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1A3AA0

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

Preview Lab → · Contrast checker → · Palette generator →