#1C366D#1C366D

#1C366D is a dark, moderate blue. Relative luminance 0.040; OKLCH L 34.5% C 0.101 H 263.1°. Best body text is #FFFFFF at 11.68:1 contrast (WCAG AA passes).

Color values

HEX	#1C366D
RGB	rgb(28, 54, 109)
HSL	hsl(221, 59%, 27%)
HSV	hsv(221, 74%, 43%)
CMYK	cmyk(74.3%, 50.5%, 0%, 57.3%)
CIE-LAB	lab(23.63, 10.81, -34.95)
CIE-LCH	lch(23.63, 36.58, 287.19°)
OKLab	oklab(34.53% -0.0121 -0.1002)
OKLCH	oklch(34.53% 0.101 263.1)
XYZ	xyz(4.5574, 3.9889, 14.9948)
Luminance	0.0399 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C366D #6D531C

analogous

#1C5F6D #1C366D #2B1C6D

triadic

#1C366D #6D1C36 #366D1C

tetradic

#1C366D #6D1C5F #6D531C #1C6D2B

square

#1C366D #6D1C5F #6D531C #1C6D2B

split-complementary

#1C366D #6D2B1C #5F6D1C

monochromatic

#060C18 #0F1E3C #1C366D #294E9E #3867CC

Accessibility & contrast

On white

11.68

#1C366D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#1C366D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C366D

11.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C366D	#FFFFFF	#000000	##FFFFFF
##1C366D	1.00	11.68	1.80	11.68
#FFFFFF	11.68	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#183C6F

Deuteranopia (green-blind)

#04356C

Tritanopia (blue-blind)

#00434C

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1c366d;
/* rgb */ color: rgb(28, 54, 109);
/* oklch */ color: oklch(34.5% 0.101 263.1);

Tailwind

colors: {
  custom: {
    50: '#646c97',
    500: '#1c366d',
    950: '#000000',
  },
}

SCSS

$custom: #1c366d;
$custom-light: #646c97;
$custom-dark: #000000;

JSON

{
  "hex": "#1c366d",
  "rgb": {
    "r": 28,
    "g": 54,
    "b": 109
  },
  "hsl": {
    "h": 220.741,
    "s": 59.124,
    "l": 26.863
  },
  "oklch": {
    "l": 0.34535,
    "c": 0.10095,
    "h": 263.1
  },
  "luminance": 0.03989
}

Semantic roles & 50–950 ramp

primary

#1C366D

secondary

#A28343

accent

#B045E2

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #1C366D

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

Preview Lab → · Contrast checker → · Palette generator →