#1C3E88#1C3E88

#1C3E88 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.5% C 0.130 H 263.1°. Best body text is #FFFFFF at 10.03:1 contrast (WCAG AA passes).

Color values

HEX#1C3E88
RGBrgb(28, 62, 136)
HSLhsl(221, 66%, 32%)
HSVhsv(221, 79%, 53%)
CMYKcmyk(79.4%, 54.4%, 0%, 46.7%)
CIE-LABlab(28.03, 16.18, -44.89)
CIE-LCHlch(28.03, 47.71, 289.82°)
OKLaboklab(38.52% -0.0156 -0.1293)
OKLCHoklch(38.52% 0.13 263.1)
XYZxyz(6.6439, 5.4689, 23.9932)
Luminance0.0547 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1C3E88 #88661C
analogous
#1C7488 #1C3E88 #301C88
triadic
#1C3E88 #881C3E #3E881C
tetradic
#1C3E88 #881C74 #88661C #1C8830
square
#1C3E88 #881C74 #88661C #1C8830
split-complementary
#1C3E88 #88301C #74881C
monochromatic
#071022 #122755 #1C3E88 #2655BB #4674D9

Accessibility & contrast

On white

10.03
#1C3E88 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.09
#1C3E88 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3E88
10.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1C3E88#FFFFFF#000000##FFFFFF
##1C3E881.0010.032.0910.03
#FFFFFF10.031.0021.001.00
#0000002.0921.001.0021.00
##FFFFFF10.031.0021.001.00

Color blindness preview

Protanopia (red-blind)
#07478B
Deuteranopia (green-blind)
#003D87
Tritanopia (blue-blind)
#00505C
Achromatopsia (no color)
#424242

Design tokens & code

CSS
--color: #1c3e88;
/* rgb */ color: rgb(28, 62, 136);
/* oklch */ color: oklch(38.5% 0.130 263.1);
Tailwind
colors: {
  custom: {
    50: '#6a72ab',
    500: '#1c3e88',
    950: '#000000',
  },
}
SCSS
$custom: #1c3e88;
$custom-light: #6a72ab;
$custom-dark: #000000;
JSON
{
  "hex": "#1c3e88",
  "rgb": {
    "r": 28,
    "g": 62,
    "b": 136
  },
  "hsl": {
    "h": 221.111,
    "s": 65.854,
    "l": 32.157
  },
  "oklch": {
    "l": 0.38523,
    "c": 0.13026,
    "h": 263.1
  },
  "luminance": 0.0547
}

Semantic roles & 50–950 ramp

primary
#1C3E88
secondary
#BA9645
accent
#B33FE9
background
#F6F6FA
surface
#ECECF4
border
#C7C7CE
text
#070810
muted
#7A7B7F

Preview Lab

Preview with #1C3E88

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

Preview Lab → · Contrast checker → · Palette generator →

#1C3E88 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva