#1C3083#1C3083

#1C3083 is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.1% C 0.141 H 267.8°. Best body text is #FFFFFF at 11.67:1 contrast (WCAG AA passes).

Color values

HEX#1C3083
RGBrgb(28, 48, 131)
HSLhsl(228, 65%, 31%)
HSVhsv(228, 79%, 51%)
CMYKcmyk(78.6%, 63.4%, 0%, 48.6%)
CIE-LABlab(23.67, 23.94, -48.87)
CIE-LCHlch(23.67, 54.41, 296.10°)
OKLaboklab(35.12% -0.0055 -0.1412)
OKLCHoklch(35.12% 0.141 267.8)
XYZxyz(5.6312, 3.9989, 21.9434)
Luminance0.0400 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1C3083 #836F1C
analogous
#1C6383 #1C3083 #3B1C83
triadic
#1C3083 #831C30 #30831C
tetradic
#1C3083 #831C63 #836F1C #1C833B
square
#1C3083 #831C63 #836F1C #1C833B
split-complementary
#1C3083 #833B1C #63831C
monochromatic
#060B1E #111E51 #1C3083 #2742B5 #435FD7

Accessibility & contrast

On white

11.67
#1C3083 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.80
#1C3083 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3083
11.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1C3083#FFFFFF#000000##FFFFFF
##1C30831.0011.671.8011.67
#FFFFFF11.671.0021.001.00
#0000001.8021.001.0021.00
##FFFFFF11.671.0021.001.00

Color blindness preview

Protanopia (red-blind)
#003D86
Deuteranopia (green-blind)
#003481
Tritanopia (blue-blind)
#004554
Achromatopsia (no color)
#383838

Design tokens & code

CSS
--color: #1c3083;
/* rgb */ color: rgb(28, 48, 131);
/* oklch */ color: oklch(35.1% 0.141 267.8);
Tailwind
colors: {
  custom: {
    50: '#6a68a8',
    500: '#1c3083',
    950: '#000000',
  },
}
SCSS
$custom: #1c3083;
$custom-light: #6a68a8;
$custom-dark: #000000;
JSON
{
  "hex": "#1c3083",
  "rgb": {
    "r": 28,
    "g": 48,
    "b": 131
  },
  "hsl": {
    "h": 228.35,
    "s": 64.78,
    "l": 31.176
  },
  "oklch": {
    "l": 0.35117,
    "c": 0.14135,
    "h": 267.8
  },
  "luminance": 0.03999
}

Semantic roles & 50–950 ramp

primary
#1C3083
secondary
#B6A045
accent
#C740E8
background
#F6F6FA
surface
#ECEBF4
border
#C7C6CE
text
#070610
muted
#7A7A7F

Preview Lab

Preview with #1C3083

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

Preview Lab → · Contrast checker → · Palette generator →

#1C3083 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva