#1C3386#1C3386

#1C3386 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.0% C 0.142 H 267.0°. Best body text is #FFFFFF at 11.25:1 contrast (WCAG AA passes).

Color values

HEX	#1C3386
RGB	rgb(28, 51, 134)
HSL	hsl(227, 65%, 32%)
HSV	hsv(227, 79%, 53%)
CMYK	cmyk(79.1%, 61.9%, 0%, 47.5%)
CIE-LAB	lab(24.75, 23.05, -48.98)
CIE-LCH	lch(24.75, 54.13, 295.20°)
OKLab	oklab(36% -0.0075 -0.1415)
OKLCH	oklch(36% 0.142 267)
XYZ	xyz(5.9643, 4.3351, 23.0721)
Luminance	0.0434 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3386 #866F1C

analogous

#1C6886 #1C3386 #3A1C86

triadic

#1C3386 #861C33 #33861C

tetradic

#1C3386 #861C68 #866F1C #1C863A

square

#1C3386 #861C68 #866F1C #1C863A

split-complementary

#1C3386 #863A1C #68861C

monochromatic

#070C21 #112053 #1C3386 #2746B9 #4464D8

Accessibility & contrast

On white

11.25

#1C3386 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#1C3386 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3386

11.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3386	#FFFFFF	#000000	##FFFFFF
##1C3386	1.00	11.25	1.87	11.25
#FFFFFF	11.25	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004089

Deuteranopia (green-blind)

#003684

Tritanopia (blue-blind)

#004857

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1c3386;
/* rgb */ color: rgb(28, 51, 134);
/* oklch */ color: oklch(36.0% 0.142 267.0);

Tailwind

colors: {
  custom: {
    50: '#6a6aaa',
    500: '#1c3386',
    950: '#000000',
  },
}

SCSS

$custom: #1c3386;
$custom-light: #6a6aaa;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3386",
  "rgb": {
    "r": 28,
    "g": 51,
    "b": 134
  },
  "hsl": {
    "h": 226.981,
    "s": 65.432,
    "l": 31.765
  },
  "oklch": {
    "l": 0.36003,
    "c": 0.14173,
    "h": 267
  },
  "luminance": 0.04336
}

Semantic roles & 50–950 ramp

primary

#1C3386

secondary

#B9A045

accent

#C43FE8

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #1C3386

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

Preview Lab → · Contrast checker → · Palette generator →