#1C366B#1C366B

#1C366B is a dark, moderate blue. Relative luminance 0.039; OKLCH L 34.4% C 0.098 H 262.7°. Best body text is #FFFFFF at 11.74:1 contrast (WCAG AA passes).

Color values

HEX	#1C366B
RGB	rgb(28, 54, 107)
HSL	hsl(220, 59%, 26%)
HSV	hsv(220, 74%, 42%)
CMYK	cmyk(73.8%, 49.5%, 0%, 58%)
CIE-LAB	lab(23.49, 9.99, -33.89)
CIE-LCH	lch(23.49, 35.33, 286.43°)
OKLab	oklab(34.38% -0.0124 -0.0971)
OKLCH	oklch(34.38% 0.098 262.7)
XYZ	xyz(4.4510, 3.9463, 14.4342)
Luminance	0.0395 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C366B #6B511C

analogous

#1C5E6B #1C366B #2A1C6B

triadic

#1C366B #6B1C36 #366B1C

tetradic

#1C366B #6B1C5E #6B511C #1C6B2A

square

#1C366B #6B1C5E #6B511C #1C6B2A

split-complementary

#1C366B #6B2A1C #5E6B1C

monochromatic

#060C18 #0F1E3A #1C366B #294E9C #3767CB

Accessibility & contrast

On white

11.74

#1C366B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#1C366B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C366B

11.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C366B	#FFFFFF	#000000	##FFFFFF
##1C366B	1.00	11.74	1.79	11.74
#FFFFFF	11.74	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A3C6D

Deuteranopia (green-blind)

#08356A

Tritanopia (blue-blind)

#00424B

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1c366b;
/* rgb */ color: rgb(28, 54, 107);
/* oklch */ color: oklch(34.4% 0.098 262.7);

Tailwind

colors: {
  custom: {
    50: '#636c96',
    500: '#1c366b',
    950: '#000000',
  },
}

SCSS

$custom: #1c366b;
$custom-light: #636c96;
$custom-dark: #000000;

JSON

{
  "hex": "#1c366b",
  "rgb": {
    "r": 28,
    "g": 54,
    "b": 107
  },
  "hsl": {
    "h": 220.253,
    "s": 58.519,
    "l": 26.471
  },
  "oklch": {
    "l": 0.34381,
    "c": 0.0979,
    "h": 262.7
  },
  "luminance": 0.03947
}

Semantic roles & 50–950 ramp

primary

#1C366B

secondary

#A08143

accent

#AE46E2

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #1C366B

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

Preview Lab → · Contrast checker → · Palette generator →