#1C2273#1C2273

#1C2273 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 30.8% C 0.136 H 272.0°. Best body text is #FFFFFF at 13.76:1 contrast (WCAG AA passes).

Color values

HEX	#1C2273
RGB	rgb(28, 34, 115)
HSL	hsl(236, 61%, 28%)
HSV	hsv(236, 76%, 45%)
CMYK	cmyk(75.7%, 70.4%, 0%, 54.9%)
CIE-LAB	lab(18.49, 27.33, -47.18)
CIE-LCH	lch(18.49, 54.52, 300.08°)
OKLab	oklab(30.85% 0.0049 -0.1364)
OKLCH	oklch(30.85% 0.136 272)
XYZ	xyz(4.1444, 2.6283, 16.5052)
Luminance	0.0263 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2273 #736D1C

analogous

#1C4D73 #1C2273 #411C73

triadic

#1C2273 #731C22 #22731C

tetradic

#1C2273 #731C4D #736D1C #1C7341

square

#1C2273 #731C4D #736D1C #1C7341

split-complementary

#1C2273 #73411C #4D731C

monochromatic

#060719 #101342 #1C2273 #2831A4 #3A45CF

Accessibility & contrast

On white

13.76

#1C2273 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#1C2273 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2273

13.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2273	#FFFFFF	#000000	##FFFFFF
##1C2273	1.00	13.76	1.53	13.76
#FFFFFF	13.76	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003176

Deuteranopia (green-blind)

#002971

Tritanopia (blue-blind)

#003847

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1c2273;
/* rgb */ color: rgb(28, 34, 115);
/* oklch */ color: oklch(30.8% 0.136 272.0);

Tailwind

colors: {
  custom: {
    50: '#675d9c',
    500: '#1c2273',
    950: '#000000',
  },
}

SCSS

$custom: #1c2273;
$custom-light: #675d9c;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2273",
  "rgb": {
    "r": 28,
    "g": 34,
    "b": 115
  },
  "hsl": {
    "h": 235.862,
    "s": 60.839,
    "l": 28.039
  },
  "oklch": {
    "l": 0.30849,
    "c": 0.13649,
    "h": 272
  },
  "luminance": 0.02629
}

Semantic roles & 50–950 ramp

primary

#1C2273

secondary

#A7A143

accent

#D944E4

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #1C2273

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

Preview Lab → · Contrast checker → · Palette generator →