#1C4AA9#1C4AA9

#1C4AA9 is a dark, vivid blue. Relative luminance 0.080; OKLCH L 43.8% C 0.161 H 262.4°. Best body text is #FFFFFF at 8.07:1 contrast (WCAG AA passes).

Color values

HEX	#1C4AA9
RGB	rgb(28, 74, 169)
HSL	hsl(220, 72%, 39%)
HSV	hsv(220, 83%, 66%)
CMYK	cmyk(83.4%, 56.2%, 0%, 33.7%)
CIE-LAB	lab(34.00, 21.21, -55.27)
CIE-LCH	lch(34.00, 59.20, 290.99°)
OKLab	oklab(43.85% -0.0212 -0.1596)
OKLCH	oklch(43.85% 0.161 262.4)
XYZ	xyz(10.0865, 8.0078, 38.5425)
Luminance	0.0801 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4AA9 #A97B1C

analogous

#1C90A9 #1C4AA9 #351CA9

triadic

#1C4AA9 #A91C4A #4AA91C

tetradic

#1C4AA9 #A91C90 #A97B1C #1CA935

square

#1C4AA9 #A91C90 #A97B1C #1CA935

split-complementary

#1C4AA9 #A9351C #90A91C

monochromatic

#0B1C40 #133374 #1C4AA9 #2762DB #5B88E4

Accessibility & contrast

On white

8.07

#1C4AA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#1C4AA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4AA9

8.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4AA9	#FFFFFF	#000000	##FFFFFF
##1C4AA9	1.00	8.07	2.60	8.07
#FFFFFF	8.07	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057AC

Deuteranopia (green-blind)

#004AA7

Tritanopia (blue-blind)

#006272

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1c4aa9;
/* rgb */ color: rgb(28, 74, 169);
/* oklch */ color: oklch(43.8% 0.161 262.4);

Tailwind

colors: {
  custom: {
    50: '#727bc3',
    500: '#1c4aa9',
    950: '#000000',
  },
}

SCSS

$custom: #1c4aa9;
$custom-light: #727bc3;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4aa9",
  "rgb": {
    "r": 28,
    "g": 74,
    "b": 169
  },
  "hsl": {
    "h": 220.426,
    "s": 71.574,
    "l": 38.627
  },
  "oklch": {
    "l": 0.43849,
    "c": 0.16103,
    "h": 262.4
  },
  "luminance": 0.08009
}

Semantic roles & 50–950 ramp

primary

#1C4AA9

secondary

#C8A459

accent

#B339EE

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#090913

muted

#7B7B82

Preview Lab

Preview with #1C4AA9

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

Preview Lab → · Contrast checker → · Palette generator →