#1C3D82#1C3D82

#1C3D82 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 37.8% C 0.123 H 262.8°. Best body text is #FFFFFF at 10.30:1 contrast (WCAG AA passes).

Color values

HEX	#1C3D82
RGB	rgb(28, 61, 130)
HSL	hsl(221, 65%, 31%)
HSV	hsv(221, 78%, 51%)
CMYK	cmyk(78.5%, 53.1%, 0%, 49%)
CIE-LAB	lab(27.28, 14.44, -42.36)
CIE-LCH	lch(27.28, 44.75, 288.82°)
OKLab	oklab(37.81% -0.0155 -0.1219)
OKLCH	oklch(37.81% 0.123 262.8)
XYZ	xyz(6.1755, 5.1954, 21.7921)
Luminance	0.0520 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3D82 #82611C

analogous

#1C7082 #1C3D82 #2E1C82

triadic

#1C3D82 #821C3D #3D821C

tetradic

#1C3D82 #821C70 #82611C #1C822E

square

#1C3D82 #821C70 #82611C #1C822E

split-complementary

#1C3D82 #822E1C #70821C

monochromatic

#060E1D #112550 #1C3D82 #2755B4 #4272D6

Accessibility & contrast

On white

10.30

#1C3D82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#1C3D82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3D82

10.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3D82	#FFFFFF	#000000	##FFFFFF
##1C3D82	1.00	10.30	2.04	10.30
#FFFFFF	10.30	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#104584

Deuteranopia (green-blind)

#003C81

Tritanopia (blue-blind)

#004E59

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1c3d82;
/* rgb */ color: rgb(28, 61, 130);
/* oklch */ color: oklch(37.8% 0.123 262.8);

Tailwind

colors: {
  custom: {
    50: '#6871a7',
    500: '#1c3d82',
    950: '#000000',
  },
}

SCSS

$custom: #1c3d82;
$custom-light: #6871a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3d82",
  "rgb": {
    "r": 28,
    "g": 61,
    "b": 130
  },
  "hsl": {
    "h": 220.588,
    "s": 64.557,
    "l": 30.98
  },
  "oklch": {
    "l": 0.37811,
    "c": 0.12289,
    "h": 262.8
  },
  "luminance": 0.05196
}

Semantic roles & 50–950 ramp

primary

#1C3D82

secondary

#B59144

accent

#B140E8

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1C3D82

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

Preview Lab → · Contrast checker → · Palette generator →