#1C4288#1C4288

#1C4288 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.4% C 0.125 H 261.3°. Best body text is #FFFFFF at 9.61:1 contrast (WCAG AA passes).

Color values

HEX#1C4288
RGBrgb(28, 66, 136)
HSLhsl(219, 66%, 32%)
HSVhsv(219, 79%, 53%)
CMYKcmyk(79.4%, 51.5%, 0%, 46.7%)
CIE-LABlab(29.21, 13.40, -42.98)
CIE-LCHlch(29.21, 45.02, 287.32°)
OKLaboklab(39.42% -0.0189 -0.1236)
OKLCHoklch(39.42% 0.125 261.3)
XYZxyz(6.8694, 5.9201, 24.0684)
Luminance0.0592 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1C4288 #88621C
analogous
#1C7888 #1C4288 #2C1C88
triadic
#1C4288 #881C42 #42881C
tetradic
#1C4288 #881C78 #88621C #1C882C
square
#1C4288 #881C78 #88621C #1C882C
split-complementary
#1C4288 #882C1C #78881C
monochromatic
#071122 #122955 #1C4288 #265BBB #4679D9

Accessibility & contrast

On white

9.61
#1C4288 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.18
#1C4288 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4288
9.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1C4288#FFFFFF#000000##FFFFFF
##1C42881.009.612.189.61
#FFFFFF9.611.0021.001.00
#0000002.1821.001.0021.00
##FFFFFF9.611.0021.001.00

Color blindness preview

Protanopia (red-blind)
#174A8B
Deuteranopia (green-blind)
#004087
Tritanopia (blue-blind)
#00535E
Achromatopsia (no color)
#454545

Design tokens & code

CSS
--color: #1c4288;
/* rgb */ color: rgb(28, 66, 136);
/* oklch */ color: oklch(39.4% 0.125 261.3);
Tailwind
colors: {
  custom: {
    50: '#6a75ab',
    500: '#1c4288',
    950: '#000000',
  },
}
SCSS
$custom: #1c4288;
$custom-light: #6a75ab;
$custom-dark: #000000;
JSON
{
  "hex": "#1c4288",
  "rgb": {
    "r": 28,
    "g": 66,
    "b": 136
  },
  "hsl": {
    "h": 218.889,
    "s": 65.854,
    "l": 32.157
  },
  "oklch": {
    "l": 0.39421,
    "c": 0.12506,
    "h": 261.3
  },
  "luminance": 0.05921
}

Semantic roles & 50–950 ramp

primary
#1C4288
secondary
#BA9145
accent
#AD3FE9
background
#F6F7FA
surface
#ECEDF4
border
#C7C8CE
text
#070810
muted
#7A7B7F

Preview Lab

Preview with #1C4288

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

Preview Lab → · Contrast checker → · Palette generator →

#1C4288 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva