#1C3590#1C3590

#1C3590 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.3% C 0.153 H 266.7°. Best body text is #FFFFFF at 10.71:1 contrast (WCAG AA passes).

Color values

HEX#1C3590
RGBrgb(28, 53, 144)
HSLhsl(227, 67%, 34%)
HSVhsv(227, 81%, 56%)
CMYKcmyk(80.6%, 63.2%, 0%, 43.5%)
CIE-LABlab(26.17, 25.62, -52.86)
CIE-LCHlch(26.17, 58.74, 295.86°)
OKLaboklab(37.34% -0.0088 -0.1529)
OKLCHoklch(37.34% 0.153 266.7)
XYZxyz(6.7843, 4.8059, 26.9502)
Luminance0.0481 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1C3590 #90771C
analogous
#1C6F90 #1C3590 #3D1C90
triadic
#1C3590 #901C35 #35901C
tetradic
#1C3590 #901C6F #90771C #1C903D
square
#1C3590 #901C6F #90771C #1C903D
split-complementary
#1C3590 #903D1C #6F901C
monochromatic
#080F2A #12225D #1C3590 #2648C3 #4A6ADC

Accessibility & contrast

On white

10.71
#1C3590 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.96
#1C3590 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3590
10.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1C3590#FFFFFF#000000##FFFFFF
##1C35901.0010.711.9610.71
#FFFFFF10.711.0021.001.00
#0000001.9621.001.0021.00
##FFFFFF10.711.0021.001.00

Color blindness preview

Protanopia (red-blind)
#004493
Deuteranopia (green-blind)
#00398E
Tritanopia (blue-blind)
#004D5D
Achromatopsia (no color)
#3E3E3E

Design tokens & code

CSS
--color: #1c3590;
/* rgb */ color: rgb(28, 53, 144);
/* oklch */ color: oklch(37.3% 0.153 266.7);
Tailwind
colors: {
  custom: {
    50: '#6d6cb1',
    500: '#1c3590',
    950: '#000000',
  },
}
SCSS
$custom: #1c3590;
$custom-light: #6d6cb1;
$custom-dark: #000000;
JSON
{
  "hex": "#1c3590",
  "rgb": {
    "r": 28,
    "g": 53,
    "b": 144
  },
  "hsl": {
    "h": 227.069,
    "s": 67.442,
    "l": 33.725
  },
  "oklch": {
    "l": 0.37336,
    "c": 0.15313,
    "h": 266.7
  },
  "luminance": 0.04807
}

Semantic roles & 50–950 ramp

primary
#1C3590
secondary
#BEA54A
accent
#C53DEA
background
#F7F6FB
surface
#EDEBF6
border
#C8C6D0
text
#080611
muted
#7B7A80

Preview Lab

Preview with #1C3590

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

Preview Lab → · Contrast checker → · Palette generator →

#1C3590 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva