#1C479B#1C479B

#1C479B is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.1% C 0.146 H 261.9°. Best body text is #FFFFFF at 8.66:1 contrast (WCAG AA passes).

Color values

HEX#1C479B
RGBrgb(28, 71, 155)
HSLhsl(220, 69%, 36%)
HSVhsv(220, 82%, 61%)
CMYKcmyk(81.9%, 54.2%, 0%, 39.2%)
CIE-LABlab(32.08, 17.65, -49.97)
CIE-LCHlch(32.08, 53.00, 289.45°)
OKLaboklab(42.05% -0.0204 -0.1441)
OKLCHoklch(42.05% 0.146 261.9)
XYZxyz(8.6464, 7.1189, 31.9224)
Luminance0.0712 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1C479B #9B701C
analogous
#1C869B #1C479B #301C9B
triadic
#1C479B #9B1C47 #479B1C
tetradic
#1C479B #9B1C86 #9B701C #1C9B30
square
#1C479B #9B1C86 #9B701C #1C9B30
split-complementary
#1C479B #9B301C #869B1C
monochromatic
#091833 #132F67 #1C479B #255FCF #5282E0

Accessibility & contrast

On white

8.66
#1C479B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.42
#1C479B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C479B
8.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1C479B#FFFFFF#000000##FFFFFF
##1C479B1.008.662.428.66
#FFFFFF8.661.0021.001.00
#0000002.4221.001.0021.00
##FFFFFF8.661.0021.001.00

Color blindness preview

Protanopia (red-blind)
#03529E
Deuteranopia (green-blind)
#004699
Tritanopia (blue-blind)
#005C6A
Achromatopsia (no color)
#4B4B4B

Design tokens & code

CSS
--color: #1c479b;
/* rgb */ color: rgb(28, 71, 155);
/* oklch */ color: oklch(42.1% 0.146 261.9);
Tailwind
colors: {
  custom: {
    50: '#6e79b9',
    500: '#1c479b',
    950: '#000000',
  },
}
SCSS
$custom: #1c479b;
$custom-light: #6e79b9;
$custom-dark: #000000;
JSON
{
  "hex": "#1c479b",
  "rgb": {
    "r": 28,
    "g": 71,
    "b": 155
  },
  "hsl": {
    "h": 219.685,
    "s": 69.399,
    "l": 35.882
  },
  "oklch": {
    "l": 0.42052,
    "c": 0.14555,
    "h": 261.9
  },
  "luminance": 0.0712
}

Semantic roles & 50–950 ramp

primary
#1C479B
secondary
#C39C50
accent
#B03CEC
background
#F7F7FB
surface
#EDEDF6
border
#C8C8D0
text
#080911
muted
#7B7B80

Preview Lab

Preview with #1C479B

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

Preview Lab → · Contrast checker → · Palette generator →

#1C479B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva