#1C4AB4#1C4AB4

#1C4AB4 is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.8% C 0.176 H 263.3°. Best body text is #FFFFFF at 7.81:1 contrast (WCAG AA passes).

Color values

HEX	#1C4AB4
RGB	rgb(28, 74, 180)
HSL	hsl(222, 73%, 41%)
HSV	hsv(222, 84%, 71%)
CMYK	cmyk(84.4%, 58.9%, 0%, 29.4%)
CIE-LAB	lab(34.88, 25.55, -60.38)
CIE-LCH	lch(34.88, 65.56, 292.94°)
OKLab	oklab(44.79% -0.0205 -0.1746)
OKLCH	oklch(44.79% 0.176 263.3)
XYZ	xyz(11.1629, 8.4383, 44.2116)
Luminance	0.0844 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4AB4 #B4861C

analogous

#1C96B4 #1C4AB4 #3A1CB4

triadic

#1C4AB4 #B41C4A #4AB41C

tetradic

#1C4AB4 #B41C96 #B4861C #1CB43A

square

#1C4AB4 #B41C96 #B4861C #1CB43A

split-complementary

#1C4AB4 #B43A1C #96B41C

monochromatic

#0C1E4A #14347F #1C4AB4 #2F64DF #648BE7

Accessibility & contrast

On white

7.81

#1C4AB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#1C4AB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4AB4

7.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4AB4	#FFFFFF	#000000	##FFFFFF
##1C4AB4	1.00	7.81	2.69	7.81
#FFFFFF	7.81	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059B8

Deuteranopia (green-blind)

#004BB2

Tritanopia (blue-blind)

#006577

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1c4ab4;
/* rgb */ color: rgb(28, 74, 180);
/* oklch */ color: oklch(44.8% 0.176 263.3);

Tailwind

colors: {
  custom: {
    50: '#757bcb',
    500: '#1c4ab4',
    950: '#000000',
  },
}

SCSS

$custom: #1c4ab4;
$custom-light: #757bcb;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4ab4",
  "rgb": {
    "r": 28,
    "g": 74,
    "b": 180
  },
  "hsl": {
    "h": 221.842,
    "s": 73.077,
    "l": 40.784
  },
  "oklch": {
    "l": 0.44787,
    "c": 0.17581,
    "h": 263.3
  },
  "luminance": 0.0844
}

Semantic roles & 50–950 ramp

primary

#1C4AB4

secondary

#CCAB60

accent

#B838F0

background

#F7F7FC

surface

#EEEDF9

border

#C9C8D2

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #1C4AB4

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

Preview Lab → · Contrast checker → · Palette generator →