#1A428F#1A428F

#1A428F is a dark, vivid blue. Relative luminance 0.061; OKLCH L 39.9% C 0.136 H 261.8°. Best body text is #FFFFFF at 9.46:1 contrast (WCAG AA passes).

Color values

HEX	#1A428F
RGB	rgb(26, 66, 143)
HSL	hsl(219, 69%, 33%)
HSV	hsv(219, 82%, 56%)
CMYK	cmyk(81.8%, 53.8%, 0%, 43.9%)
CIE-LAB	lab(29.66, 16.02, -46.57)
CIE-LCH	lch(29.66, 49.25, 288.99°)
OKLab	oklab(39.91% -0.0194 -0.1342)
OKLCH	oklch(39.91% 0.136 261.8)
XYZ	xyz(7.3304, 6.0983, 26.7720)
Luminance	0.0610 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A428F #8F671A

analogous

#1A7C8F #1A428F #2C1A8F

triadic

#1A428F #8F1A42 #428F1A

tetradic

#1A428F #8F1A7C #8F671A #1A8F2C

square

#1A428F #8F1A7C #8F671A #1A8F2C

split-complementary

#1A428F #8F2C1A #7C8F1A

monochromatic

#071227 #112A5B #1A428F #235AC3 #467ADD

Accessibility & contrast

On white

9.46

#1A428F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#1A428F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A428F

9.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A428F	#FFFFFF	#000000	##FFFFFF
##1A428F	1.00	9.46	2.22	9.46
#FFFFFF	9.46	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#094B92

Deuteranopia (green-blind)

#00418D

Tritanopia (blue-blind)

#005562

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1a428f;
/* rgb */ color: rgb(26, 66, 143);
/* oklch */ color: oklch(39.9% 0.136 261.8);

Tailwind

colors: {
  custom: {
    50: '#6b75b0',
    500: '#1a428f',
    950: '#000000',
  },
}

SCSS

$custom: #1a428f;
$custom-light: #6b75b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1a428f",
  "rgb": {
    "r": 26,
    "g": 66,
    "b": 143
  },
  "hsl": {
    "h": 219.487,
    "s": 69.231,
    "l": 33.137
  },
  "oklch": {
    "l": 0.39909,
    "c": 0.13562,
    "h": 261.8
  },
  "luminance": 0.06099
}

Semantic roles & 50–950 ramp

primary

#1A428F

secondary

#BF9546

accent

#B03CEC

background

#F6F7FA

surface

#ECEDF5

border

#C7C8CF

text

#080811

muted

#7A7B80

Preview Lab

Preview with #1A428F

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

Preview Lab → · Contrast checker → · Palette generator →