#1C4DA8#1C4DA8

#1C4DA8 is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.4% C 0.156 H 261.4°. Best body text is #FFFFFF at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#1C4DA8
RGB	rgb(28, 77, 168)
HSL	hsl(219, 71%, 38%)
HSV	hsv(219, 83%, 66%)
CMYK	cmyk(83.3%, 54.2%, 0%, 34.1%)
CIE-LAB	lab(34.76, 18.78, -53.43)
CIE-LCH	lch(34.76, 56.64, 289.37°)
OKLab	oklab(44.4% -0.0233 -0.1542)
OKLCH	oklch(44.4% 0.156 261.4)
XYZ	xyz(10.1981, 8.3805, 38.1183)
Luminance	0.0838 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4DA8 #A8771C

analogous

#1C93A8 #1C4DA8 #311CA8

triadic

#1C4DA8 #A81C4D #4DA81C

tetradic

#1C4DA8 #A81C93 #A8771C #1CA831

square

#1C4DA8 #A81C93 #A8771C #1CA831

split-complementary

#1C4DA8 #A8311C #93A81C

monochromatic

#0B1D3F #133574 #1C4DA8 #2666DB #5B8BE4

Accessibility & contrast

On white

7.85

#1C4DA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#1C4DA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4DA8

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4DA8	#FFFFFF	#000000	##FFFFFF
##1C4DA8	1.00	7.85	2.68	7.85
#FFFFFF	7.85	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058AB

Deuteranopia (green-blind)

#004CA6

Tritanopia (blue-blind)

#006373

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1c4da8;
/* rgb */ color: rgb(28, 77, 168);
/* oklch */ color: oklch(44.4% 0.156 261.4);

Tailwind

colors: {
  custom: {
    50: '#717ec3',
    500: '#1c4da8',
    950: '#000000',
  },
}

SCSS

$custom: #1c4da8;
$custom-light: #717ec3;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4da8",
  "rgb": {
    "r": 28,
    "g": 77,
    "b": 168
  },
  "hsl": {
    "h": 219,
    "s": 71.429,
    "l": 38.431
  },
  "oklch": {
    "l": 0.44404,
    "c": 0.15591,
    "h": 261.4
  },
  "luminance": 0.08382
}

Semantic roles & 50–950 ramp

primary

#1C4DA8

secondary

#C7A158

accent

#AF3AEE

background

#F7F7FC

surface

#EDEEF8

border

#C8C9D1

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1C4DA8

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

Preview Lab → · Contrast checker → · Palette generator →