#1C3393#1C3393

#1C3393 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.2% C 0.160 H 267.2°. Best body text is #FFFFFF at 10.80:1 contrast (WCAG AA passes).

Color values

HEX	#1C3393
RGB	rgb(28, 51, 147)
HSL	hsl(228, 68%, 34%)
HSV	hsv(228, 81%, 58%)
CMYK	cmyk(81%, 65.3%, 0%, 42.4%)
CIE-LAB	lab(25.92, 28.15, -55.12)
CIE-LCH	lch(25.92, 61.89, 297.06°)
OKLab	oklab(37.23% -0.0077 -0.1595)
OKLCH	oklch(37.23% 0.16 267.2)
XYZ	xyz(6.9273, 4.7203, 28.1441)
Luminance	0.0472 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3393 #937C1C

analogous

#1C6F93 #1C3393 #401C93

triadic

#1C3393 #931C33 #33931C

tetradic

#1C3393 #931C6F #937C1C #1C9340

square

#1C3393 #931C6F #937C1C #1C9340

split-complementary

#1C3393 #93401C #6F931C

monochromatic

#080F2C #122160 #1C3393 #2645C6 #4C68DD

Accessibility & contrast

On white

10.80

#1C3393 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#1C3393 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3393

10.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3393	#FFFFFF	#000000	##FFFFFF
##1C3393	1.00	10.80	1.94	10.80
#FFFFFF	10.80	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004396

Deuteranopia (green-blind)

#003891

Tritanopia (blue-blind)

#004C5E

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1c3393;
/* rgb */ color: rgb(28, 51, 147);
/* oklch */ color: oklch(37.2% 0.160 267.2);

Tailwind

colors: {
  custom: {
    50: '#6e6ab4',
    500: '#1c3393',
    950: '#000000',
  },
}

SCSS

$custom: #1c3393;
$custom-light: #6e6ab4;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3393",
  "rgb": {
    "r": 28,
    "g": 51,
    "b": 147
  },
  "hsl": {
    "h": 228.403,
    "s": 68,
    "l": 34.314
  },
  "oklch": {
    "l": 0.37234,
    "c": 0.15971,
    "h": 267.2
  },
  "luminance": 0.04721
}

Semantic roles & 50–950 ramp

primary

#1C3393

secondary

#BFA94C

accent

#C93DEB

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1C3393

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

Preview Lab → · Contrast checker → · Palette generator →