#1C3D7B#1C3D7B

#1C3D7B is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.3% C 0.113 H 261.6°. Best body text is #FFFFFF at 10.49:1 contrast (WCAG AA passes).

Color values

HEX	#1C3D7B
RGB	rgb(28, 61, 123)
HSL	hsl(219, 63%, 30%)
HSV	hsv(219, 77%, 48%)
CMYK	cmyk(77.2%, 50.4%, 0%, 51.8%)
CIE-LAB	lab(26.77, 11.59, -38.80)
CIE-LCH	lch(26.77, 40.49, 286.63°)
OKLab	oklab(37.26% -0.0165 -0.1114)
OKLCH	oklch(37.26% 0.113 261.6)
XYZ	xyz(5.7215, 5.0138, 19.4013)
Luminance	0.0501 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3D7B #7B5A1C

analogous

#1C6D7B #1C3D7B #2B1C7B

triadic

#1C3D7B #7B1C3D #3D7B1C

tetradic

#1C3D7B #7B1C6D #7B5A1C #1C7B2B

square

#1C3D7B #7B1C6D #7B5A1C #1C7B2B

split-complementary

#1C3D7B #7B2B1C #6D7B1C

monochromatic

#060C19 #112449 #1C3D7B #2756AD #3E72D3

Accessibility & contrast

On white

10.49

#1C3D7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#1C3D7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3D7B

10.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3D7B	#FFFFFF	#000000	##FFFFFF
##1C3D7B	1.00	10.49	2.00	10.49
#FFFFFF	10.49	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A447D

Deuteranopia (green-blind)

#003B7A

Tritanopia (blue-blind)

#004C56

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1c3d7b;
/* rgb */ color: rgb(28, 61, 123);
/* oklch */ color: oklch(37.3% 0.113 261.6);

Tailwind

colors: {
  custom: {
    50: '#6772a2',
    500: '#1c3d7b',
    950: '#000000',
  },
}

SCSS

$custom: #1c3d7b;
$custom-light: #6772a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3d7b",
  "rgb": {
    "r": 28,
    "g": 61,
    "b": 123
  },
  "hsl": {
    "h": 219.158,
    "s": 62.914,
    "l": 29.608
  },
  "oklch": {
    "l": 0.37258,
    "c": 0.11262,
    "h": 261.6
  },
  "luminance": 0.05014
}

Semantic roles & 50–950 ramp

primary

#1C3D7B

secondary

#AF8A44

accent

#AD42E6

background

#F6F6FA

surface

#EBECF3

border

#C6C7CD

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1C3D7B

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

Preview Lab → · Contrast checker → · Palette generator →