#1C2172#1C2172

#1C2172 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.6% C 0.136 H 272.4°. Best body text is #FFFFFF at 13.91:1 contrast (WCAG AA passes).

Color values

HEX	#1C2172
RGB	rgb(28, 33, 114)
HSL	hsl(237, 61%, 28%)
HSV	hsv(237, 75%, 45%)
CMYK	cmyk(75.4%, 71.1%, 0%, 55.3%)
CIE-LAB	lab(18.14, 27.62, -47.10)
CIE-LCH	lch(18.14, 54.60, 300.38°)
OKLab	oklab(30.57% 0.0057 -0.1362)
OKLCH	oklch(30.57% 0.136 272.4)
XYZ	xyz(4.0590, 2.5491, 16.1944)
Luminance	0.0255 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2172 #726D1C

analogous

#1C4C72 #1C2172 #421C72

triadic

#1C2172 #721C21 #21721C

tetradic

#1C2172 #721C4C #726D1C #1C7242

square

#1C2172 #721C4C #726D1C #1C7242

split-complementary

#1C2172 #72421C #4C721C

monochromatic

#060719 #101341 #1C2172 #282FA3 #3A42CF

Accessibility & contrast

On white

13.91

#1C2172 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#1C2172 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2172

13.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2172	#FFFFFF	#000000	##FFFFFF
##1C2172	1.00	13.91	1.51	13.91
#FFFFFF	13.91	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003074

Deuteranopia (green-blind)

#002870

Tritanopia (blue-blind)

#003746

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #1c2172;
/* rgb */ color: rgb(28, 33, 114);
/* oklch */ color: oklch(30.6% 0.136 272.4);

Tailwind

colors: {
  custom: {
    50: '#675c9b',
    500: '#1c2172',
    950: '#000000',
  },
}

SCSS

$custom: #1c2172;
$custom-light: #675c9b;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2172",
  "rgb": {
    "r": 28,
    "g": 33,
    "b": 114
  },
  "hsl": {
    "h": 236.512,
    "s": 60.563,
    "l": 27.843
  },
  "oklch": {
    "l": 0.30565,
    "c": 0.13632,
    "h": 272.4
  },
  "luminance": 0.02549
}

Semantic roles & 50–950 ramp

primary

#1C2172

secondary

#A6A143

accent

#DA44E4

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #1C2172

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

Preview Lab → · Contrast checker → · Palette generator →