#1A3480#1A3480

#1A3480 is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.6% C 0.132 H 265.6°. Best body text is #FFFFFF at 11.37:1 contrast (WCAG AA passes).

Color values

HEX	#1A3480
RGB	rgb(26, 52, 128)
HSL	hsl(225, 66%, 30%)
HSV	hsv(225, 80%, 50%)
CMYK	cmyk(79.7%, 59.4%, 0%, 49.8%)
CIE-LAB	lab(24.43, 19.70, -45.74)
CIE-LCH	lch(24.43, 49.81, 293.30°)
OKLab	oklab(35.58% -0.0102 -0.1321)
OKLCH	oklch(35.58% 0.132 265.6)
XYZ	xyz(5.5489, 4.2335, 20.9426)
Luminance	0.0423 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3480 #80661A

analogous

#1A6780 #1A3480 #331A80

triadic

#1A3480 #801A34 #34801A

tetradic

#1A3480 #801A67 #80661A #1A8033

square

#1A3480 #801A67 #80661A #1A8033

split-complementary

#1A3480 #80331A #67801A

monochromatic

#050B1A #101F4D #1A3480 #2449B3 #3D64D8

Accessibility & contrast

On white

11.37

#1A3480 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#1A3480 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3480

11.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3480	#FFFFFF	#000000	##FFFFFF
##1A3480	1.00	11.37	1.85	11.37
#FFFFFF	11.37	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F83

Deuteranopia (green-blind)

#00357F

Tritanopia (blue-blind)

#004754

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1a3480;
/* rgb */ color: rgb(26, 52, 128);
/* oklch */ color: oklch(35.6% 0.132 265.6);

Tailwind

colors: {
  custom: {
    50: '#686ba6',
    500: '#1a3480',
    950: '#000000',
  },
}

SCSS

$custom: #1a3480;
$custom-light: #686ba6;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3480",
  "rgb": {
    "r": 26,
    "g": 52,
    "b": 128
  },
  "hsl": {
    "h": 224.706,
    "s": 66.234,
    "l": 30.196
  },
  "oklch": {
    "l": 0.35579,
    "c": 0.13245,
    "h": 265.6
  },
  "luminance": 0.04234
}

Semantic roles & 50–950 ramp

primary

#1A3480

secondary

#B49742

accent

#BE3FE9

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1A3480

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

Preview Lab → · Contrast checker → · Palette generator →