#1C4384#1C4384

#1C4384 is a dark, moderate blue. Relative luminance 0.059; OKLCH L 39.3% C 0.118 H 260.1°. Best body text is #FFFFFF at 9.61:1 contrast (WCAG AA passes).

Color values

HEX	#1C4384
RGB	rgb(28, 67, 132)
HSL	hsl(218, 65%, 31%)
HSV	hsv(218, 79%, 52%)
CMYK	cmyk(78.8%, 49.2%, 0%, 48.2%)
CIE-LAB	lab(29.23, 11.08, -40.47)
CIE-LCH	lch(29.23, 41.96, 285.32°)
OKLab	oklab(39.34% -0.0204 -0.1162)
OKLCH	oklch(39.34% 0.118 260.1)
XYZ	xyz(6.6494, 5.9264, 22.6188)
Luminance	0.0593 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4384 #845D1C

analogous

#1C7784 #1C4384 #291C84

triadic

#1C4384 #841C43 #43841C

tetradic

#1C4384 #841C77 #845D1C #1C8429

square

#1C4384 #841C77 #845D1C #1C8429

split-complementary

#1C4384 #84291C #77841C

monochromatic

#07101F #112952 #1C4384 #275DB6 #437BD7

Accessibility & contrast

On white

9.61

#1C4384 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#1C4384 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4384

9.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4384	#FFFFFF	#000000	##FFFFFF
##1C4384	1.00	9.61	2.19	9.61
#FFFFFF	9.61	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F4A86

Deuteranopia (green-blind)

#004083

Tritanopia (blue-blind)

#00525D

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1c4384;
/* rgb */ color: rgb(28, 67, 132);
/* oklch */ color: oklch(39.3% 0.118 260.1);

Tailwind

colors: {
  custom: {
    50: '#6976a8',
    500: '#1c4384',
    950: '#000000',
  },
}

SCSS

$custom: #1c4384;
$custom-light: #6976a8;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4384",
  "rgb": {
    "r": 28,
    "g": 67,
    "b": 132
  },
  "hsl": {
    "h": 217.5,
    "s": 65,
    "l": 31.373
  },
  "oklch": {
    "l": 0.39342,
    "c": 0.118,
    "h": 260.1
  },
  "luminance": 0.05927
}

Semantic roles & 50–950 ramp

primary

#1C4384

secondary

#B78C45

accent

#A940E8

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1C4384

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

Preview Lab → · Contrast checker → · Palette generator →