#1C2873#1C2873

#1C2873 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.0% C 0.129 H 270.3°. Best body text is #FFFFFF at 13.12:1 contrast (WCAG AA passes).

Color values

HEX	#1C2873
RGB	rgb(28, 40, 115)
HSL	hsl(232, 61%, 28%)
HSV	hsv(232, 76%, 45%)
CMYK	cmyk(75.7%, 65.2%, 0%, 54.9%)
CIE-LAB	lab(20.05, 23.20, -44.62)
CIE-LCH	lch(20.05, 50.29, 297.47°)
OKLab	oklab(31.99% 0.0006 -0.1289)
OKLCH	oklch(31.99% 0.129 270.3)
XYZ	xyz(4.3311, 3.0018, 16.5675)
Luminance	0.0300 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2873 #73671C

analogous

#1C5373 #1C2873 #3B1C73

triadic

#1C2873 #731C28 #28731C

tetradic

#1C2873 #731C53 #73671C #1C733B

square

#1C2873 #731C53 #73671C #1C733B

split-complementary

#1C2873 #733B1C #53731C

monochromatic

#060919 #101742 #1C2873 #2839A4 #3A4FCF

Accessibility & contrast

On white

13.12

#1C2873 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#1C2873 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2873

13.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2873	#FFFFFF	#000000	##FFFFFF
##1C2873	1.00	13.12	1.60	13.12
#FFFFFF	13.12	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003575

Deuteranopia (green-blind)

#002C72

Tritanopia (blue-blind)

#003B49

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1c2873;
/* rgb */ color: rgb(28, 40, 115);
/* oklch */ color: oklch(32.0% 0.129 270.3);

Tailwind

colors: {
  custom: {
    50: '#66619c',
    500: '#1c2873',
    950: '#000000',
  },
}

SCSS

$custom: #1c2873;
$custom-light: #66619c;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2873",
  "rgb": {
    "r": 28,
    "g": 40,
    "b": 115
  },
  "hsl": {
    "h": 231.724,
    "s": 60.839,
    "l": 28.039
  },
  "oklch": {
    "l": 0.31992,
    "c": 0.12887,
    "h": 270.3
  },
  "luminance": 0.03002
}

Semantic roles & 50–950 ramp

primary

#1C2873

secondary

#A79A43

accent

#CE44E4

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#07050E

muted

#7A797E

Preview Lab

Preview with #1C2873

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

Preview Lab → · Contrast checker → · Palette generator →