#1C4DA9#1C4DA9

#1C4DA9 is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.5% C 0.157 H 261.5°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#1C4DA9
RGB	rgb(28, 77, 169)
HSL	hsl(219, 72%, 39%)
HSV	hsv(219, 83%, 66%)
CMYK	cmyk(83.4%, 54.4%, 0%, 33.7%)
CIE-LAB	lab(34.84, 19.18, -53.91)
CIE-LCH	lch(34.84, 57.22, 289.59°)
OKLab	oklab(44.49% -0.0232 -0.1556)
OKLCH	oklch(44.49% 0.157 261.5)
XYZ	xyz(10.2916, 8.4179, 38.6108)
Luminance	0.0842 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4DA9 #A9781C

analogous

#1C93A9 #1C4DA9 #311CA9

triadic

#1C4DA9 #A91C4D #4DA91C

tetradic

#1C4DA9 #A91C93 #A9781C #1CA931

square

#1C4DA9 #A91C93 #A9781C #1CA931

split-complementary

#1C4DA9 #A9311C #93A91C

monochromatic

#0B1D40 #133574 #1C4DA9 #2766DB #5B8BE4

Accessibility & contrast

On white

7.82

#1C4DA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#1C4DA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4DA9

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4DA9	#FFFFFF	#000000	##FFFFFF
##1C4DA9	1.00	7.82	2.68	7.82
#FFFFFF	7.82	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059AC

Deuteranopia (green-blind)

#004CA7

Tritanopia (blue-blind)

#006473

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1c4da9;
/* rgb */ color: rgb(28, 77, 169);
/* oklch */ color: oklch(44.5% 0.157 261.5);

Tailwind

colors: {
  custom: {
    50: '#727ec3',
    500: '#1c4da9',
    950: '#000000',
  },
}

SCSS

$custom: #1c4da9;
$custom-light: #727ec3;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4da9",
  "rgb": {
    "r": 28,
    "g": 77,
    "b": 169
  },
  "hsl": {
    "h": 219.149,
    "s": 71.574,
    "l": 38.627
  },
  "oklch": {
    "l": 0.44485,
    "c": 0.15728,
    "h": 261.5
  },
  "luminance": 0.08419
}

Semantic roles & 50–950 ramp

primary

#1C4DA9

secondary

#C8A159

accent

#AF39EE

background

#F7F7FC

surface

#EDEEF8

border

#C8C9D1

text

#090913

muted

#7B7B82

Preview Lab

Preview with #1C4DA9

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

Preview Lab → · Contrast checker → · Palette generator →