#1C3084#1C3084

#1C3084 is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.2% C 0.143 H 267.8°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#1C3084
RGB	rgb(28, 48, 132)
HSL	hsl(228, 65%, 31%)
HSV	hsv(228, 79%, 52%)
CMYK	cmyk(78.8%, 63.6%, 0%, 48.2%)
CIE-LAB	lab(23.76, 24.33, -49.35)
CIE-LCH	lch(23.76, 55.02, 296.25°)
OKLab	oklab(35.21% -0.0055 -0.1426)
OKLCH	oklch(35.21% 0.143 267.8)
XYZ	xyz(5.6993, 4.0261, 22.3021)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3084 #84701C

analogous

#1C6484 #1C3084 #3C1C84

triadic

#1C3084 #841C30 #30841C

tetradic

#1C3084 #841C64 #84701C #1C843C

square

#1C3084 #841C64 #84701C #1C843C

split-complementary

#1C3084 #843C1C #64841C

monochromatic

#070B1F #111E52 #1C3084 #2742B6 #4360D7

Accessibility & contrast

On white

11.63

#1C3084 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#1C3084 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3084

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3084	#FFFFFF	#000000	##FFFFFF
##1C3084	1.00	11.63	1.81	11.63
#FFFFFF	11.63	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E87

Deuteranopia (green-blind)

#003482

Tritanopia (blue-blind)

#004655

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1c3084;
/* rgb */ color: rgb(28, 48, 132);
/* oklch */ color: oklch(35.2% 0.143 267.8);

Tailwind

colors: {
  custom: {
    50: '#6a68a9',
    500: '#1c3084',
    950: '#000000',
  },
}

SCSS

$custom: #1c3084;
$custom-light: #6a68a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3084",
  "rgb": {
    "r": 28,
    "g": 48,
    "b": 132
  },
  "hsl": {
    "h": 228.462,
    "s": 65,
    "l": 31.373
  },
  "oklch": {
    "l": 0.35212,
    "c": 0.14276,
    "h": 267.8
  },
  "luminance": 0.04027
}

Semantic roles & 50–950 ramp

primary

#1C3084

secondary

#B7A145

accent

#C840E8

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #1C3084

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

Preview Lab → · Contrast checker → · Palette generator →