#1C3673#1C3673

#1C3673 is a dark, moderate blue. Relative luminance 0.041; OKLCH L 35.0% C 0.110 H 264.1°. Best body text is #FFFFFF at 11.51:1 contrast (WCAG AA passes).

Color values

HEX	#1C3673
RGB	rgb(28, 54, 115)
HSL	hsl(222, 61%, 28%)
HSV	hsv(222, 76%, 45%)
CMYK	cmyk(75.7%, 53%, 0%, 54.9%)
CIE-LAB	lab(24.07, 13.26, -38.08)
CIE-LCH	lch(24.07, 40.32, 289.19°)
OKLab	oklab(35.01% -0.0112 -0.1094)
OKLCH	oklch(35.01% 0.11 264.1)
XYZ	xyz(4.8915, 4.1225, 16.7543)
Luminance	0.0412 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3673 #73591C

analogous

#1C6173 #1C3673 #2D1C73

triadic

#1C3673 #731C36 #36731C

tetradic

#1C3673 #731C61 #73591C #1C732D

square

#1C3673 #731C61 #73591C #1C732D

split-complementary

#1C3673 #732D1C #61731C

monochromatic

#060C19 #101F42 #1C3673 #284DA4 #3A67CF

Accessibility & contrast

On white

11.51

#1C3673 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#1C3673 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3673

11.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3673	#FFFFFF	#000000	##FFFFFF
##1C3673	1.00	11.51	1.82	11.51
#FFFFFF	11.51	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#113D75

Deuteranopia (green-blind)

#003572

Tritanopia (blue-blind)

#00454F

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1c3673;
/* rgb */ color: rgb(28, 54, 115);
/* oklch */ color: oklch(35.0% 0.110 264.1);

Tailwind

colors: {
  custom: {
    50: '#656c9c',
    500: '#1c3673',
    950: '#000000',
  },
}

SCSS

$custom: #1c3673;
$custom-light: #656c9c;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3673",
  "rgb": {
    "r": 28,
    "g": 54,
    "b": 115
  },
  "hsl": {
    "h": 222.069,
    "s": 60.839,
    "l": 28.039
  },
  "oklch": {
    "l": 0.35009,
    "c": 0.11002,
    "h": 264.1
  },
  "luminance": 0.04123
}

Semantic roles & 50–950 ramp

primary

#1C3673

secondary

#A78A43

accent

#B444E4

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #1C3673

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

Preview Lab → · Contrast checker → · Palette generator →