#1A4BB4#1A4BB4

#1A4BB4 is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.9% C 0.175 H 262.7°. Best body text is #FFFFFF at 7.75:1 contrast (WCAG AA passes).

Color values

HEX	#1A4BB4
RGB	rgb(26, 75, 180)
HSL	hsl(221, 75%, 40%)
HSV	hsv(221, 86%, 71%)
CMYK	cmyk(85.6%, 58.3%, 0%, 29.4%)
CIE-LAB	lab(35.09, 24.73, -60.03)
CIE-LCH	lch(35.09, 64.92, 292.39°)
OKLab	oklab(44.93% -0.0222 -0.1736)
OKLCH	oklch(44.93% 0.175 262.7)
XYZ	xyz(11.1773, 8.5457, 44.2315)
Luminance	0.0855 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A4BB4 #B4831A

analogous

#1A98B4 #1A4BB4 #361AB4

triadic

#1A4BB4 #B41A4B #4BB41A

tetradic

#1A4BB4 #B41A98 #B4831A #1AB436

square

#1A4BB4 #B41A98 #B4831A #1AB436

split-complementary

#1A4BB4 #B4361A #98B41A

monochromatic

#0B1E49 #12357F #1A4BB4 #2B65E0 #608CE8

Accessibility & contrast

On white

7.75

#1A4BB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#1A4BB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A4BB4

7.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A4BB4	#FFFFFF	#000000	##FFFFFF
##1A4BB4	1.00	7.75	2.71	7.75
#FFFFFF	7.75	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AB8

Deuteranopia (green-blind)

#004CB2

Tritanopia (blue-blind)

#006678

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1a4bb4;
/* rgb */ color: rgb(26, 75, 180);
/* oklch */ color: oklch(44.9% 0.175 262.7);

Tailwind

colors: {
  custom: {
    50: '#747ccb',
    500: '#1a4bb4',
    950: '#000000',
  },
}

SCSS

$custom: #1a4bb4;
$custom-light: #747ccb;
$custom-dark: #000000;

JSON

{
  "hex": "#1a4bb4",
  "rgb": {
    "r": 26,
    "g": 75,
    "b": 180
  },
  "hsl": {
    "h": 220.909,
    "s": 74.757,
    "l": 40.392
  },
  "oklch": {
    "l": 0.44933,
    "c": 0.17502,
    "h": 262.7
  },
  "luminance": 0.08547
}

Semantic roles & 50–950 ramp

primary

#1A4BB4

secondary

#CCA95D

accent

#B636F1

background

#F7F7FC

surface

#EEEEF9

border

#C9C9D2

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #1A4BB4

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

Preview Lab → · Contrast checker → · Palette generator →