#1C3872#1C3872

#1C3872 is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.4% C 0.106 H 262.8°. Best body text is #FFFFFF at 11.30:1 contrast (WCAG AA passes).

Color values

HEX	#1C3872
RGB	rgb(28, 56, 114)
HSL	hsl(220, 61%, 28%)
HSV	hsv(220, 75%, 45%)
CMYK	cmyk(75.4%, 50.9%, 0%, 55.3%)
CIE-LAB	lab(24.61, 11.43, -36.58)
CIE-LCH	lch(24.61, 38.33, 287.35°)
OKLab	oklab(35.39% -0.0132 -0.105)
OKLCH	oklch(35.39% 0.106 262.8)
XYZ	xyz(4.9292, 4.2896, 16.4845)
Luminance	0.0429 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3872 #72561C

analogous

#1C6372 #1C3872 #2B1C72

triadic

#1C3872 #721C38 #38721C

tetradic

#1C3872 #721C63 #72561C #1C722B

square

#1C3872 #721C63 #72561C #1C722B

split-complementary

#1C3872 #722B1C #63721C

monochromatic

#060C19 #102041 #1C3872 #2850A3 #3A6ACF

Accessibility & contrast

On white

11.30

#1C3872 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#1C3872 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3872

11.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3872	#FFFFFF	#000000	##FFFFFF
##1C3872	1.00	11.30	1.86	11.30
#FFFFFF	11.30	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#183F74

Deuteranopia (green-blind)

#003771

Tritanopia (blue-blind)

#00464F

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1c3872;
/* rgb */ color: rgb(28, 56, 114);
/* oklch */ color: oklch(35.4% 0.106 262.8);

Tailwind

colors: {
  custom: {
    50: '#656e9b',
    500: '#1c3872',
    950: '#000000',
  },
}

SCSS

$custom: #1c3872;
$custom-light: #656e9b;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3872",
  "rgb": {
    "r": 28,
    "g": 56,
    "b": 114
  },
  "hsl": {
    "h": 220.465,
    "s": 60.563,
    "l": 27.843
  },
  "oklch": {
    "l": 0.35393,
    "c": 0.10583,
    "h": 262.8
  },
  "luminance": 0.0429
}

Semantic roles & 50–950 ramp

primary

#1C3872

secondary

#A68643

accent

#B044E4

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #1C3872

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

Preview Lab → · Contrast checker → · Palette generator →