#1C4083#1C4083

#1C4083 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 38.6% C 0.120 H 261.4°. Best body text is #FFFFFF at 9.95:1 contrast (WCAG AA passes).

Color values

HEX#1C4083
RGBrgb(28, 64, 131)
HSLhsl(219, 65%, 31%)
HSVhsv(219, 79%, 51%)
CMYKcmyk(78.6%, 51.1%, 0%, 48.6%)
CIE-LABlab(28.25, 12.75, -41.42)
CIE-LCHlch(28.25, 43.34, 287.11°)
OKLaboklab(38.57% -0.0179 -0.1191)
OKLCHoklch(38.57% 0.12 261.4)
XYZxyz(6.4075, 5.5516, 22.2022)
Luminance0.0555 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1C4083 #835F1C
analogous
#1C7383 #1C4083 #2B1C83
triadic
#1C4083 #831C40 #40831C
tetradic
#1C4083 #831C73 #835F1C #1C832B
square
#1C4083 #831C73 #835F1C #1C832B
split-complementary
#1C4083 #832B1C #73831C
monochromatic
#060F1E #112751 #1C4083 #2759B5 #4376D7

Accessibility & contrast

On white

9.95
#1C4083 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.11
#1C4083 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4083
9.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1C4083#FFFFFF#000000##FFFFFF
##1C40831.009.952.119.95
#FFFFFF9.951.0021.001.00
#0000002.1121.001.0021.00
##FFFFFF9.951.0021.001.00

Color blindness preview

Protanopia (red-blind)
#184885
Deuteranopia (green-blind)
#003E82
Tritanopia (blue-blind)
#00505B
Achromatopsia (no color)
#434343

Design tokens & code

CSS
--color: #1c4083;
/* rgb */ color: rgb(28, 64, 131);
/* oklch */ color: oklch(38.6% 0.120 261.4);
Tailwind
colors: {
  custom: {
    50: '#6974a7',
    500: '#1c4083',
    950: '#000000',
  },
}
SCSS
$custom: #1c4083;
$custom-light: #6974a7;
$custom-dark: #000000;
JSON
{
  "hex": "#1c4083",
  "rgb": {
    "r": 28,
    "g": 64,
    "b": 131
  },
  "hsl": {
    "h": 219.029,
    "s": 64.78,
    "l": 31.176
  },
  "oklch": {
    "l": 0.38573,
    "c": 0.12042,
    "h": 261.4
  },
  "luminance": 0.05552
}

Semantic roles & 50–950 ramp

primary
#1C4083
secondary
#B68F45
accent
#AD40E8
background
#F6F7FA
surface
#ECEDF4
border
#C7C8CE
text
#07080F
muted
#7A7B7F

Preview Lab

Preview with #1C4083

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

Preview Lab → · Contrast checker → · Palette generator →

#1C4083 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva