#1C4582#1C4582

#1C4582 is a dark, moderate blue. Relative luminance 0.061; OKLCH L 39.7% C 0.113 H 258.5°. Best body text is #FFFFFF at 9.45:1 contrast (WCAG AA passes).

Color values

HEX#1C4582
RGBrgb(28, 69, 130)
HSLhsl(216, 65%, 31%)
HSVhsv(216, 78%, 51%)
CMYKcmyk(78.5%, 46.9%, 0%, 49%)
CIE-LABlab(29.70, 8.90, -38.47)
CIE-LCHlch(29.70, 39.49, 283.02°)
OKLaboklab(39.66% -0.0225 -0.1103)
OKLCHoklch(39.66% 0.113 258.5)
XYZxyz(6.6348, 6.1141, 21.9452)
Luminance0.0612 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1C4582 #82591C
analogous
#1C7882 #1C4582 #261C82
triadic
#1C4582 #821C45 #45821C
tetradic
#1C4582 #821C78 #82591C #1C8226
square
#1C4582 #821C78 #82591C #1C8226
split-complementary
#1C4582 #82261C #78821C
monochromatic
#06101D #112A50 #1C4582 #2760B4 #427ED6

Accessibility & contrast

On white

9.45
#1C4582 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.22
#1C4582 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4582
9.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1C4582#FFFFFF#000000##FFFFFF
##1C45821.009.452.229.45
#FFFFFF9.451.0021.001.00
#0000002.2221.001.0021.00
##FFFFFF9.451.0021.001.00

Color blindness preview

Protanopia (red-blind)
#254B84
Deuteranopia (green-blind)
#0F4281
Tritanopia (blue-blind)
#00535D
Achromatopsia (no color)
#464646

Design tokens & code

CSS
--color: #1c4582;
/* rgb */ color: rgb(28, 69, 130);
/* oklch */ color: oklch(39.7% 0.113 258.5);
Tailwind
colors: {
  custom: {
    50: '#6878a7',
    500: '#1c4582',
    950: '#000000',
  },
}
SCSS
$custom: #1c4582;
$custom-light: #6878a7;
$custom-dark: #000000;
JSON
{
  "hex": "#1c4582",
  "rgb": {
    "r": 28,
    "g": 69,
    "b": 130
  },
  "hsl": {
    "h": 215.882,
    "s": 64.557,
    "l": 30.98
  },
  "oklch": {
    "l": 0.39662,
    "c": 0.11257,
    "h": 258.5
  },
  "luminance": 0.06115
}

Semantic roles & 50–950 ramp

primary
#1C4582
secondary
#B58844
accent
#A440E8
background
#F6F7FA
surface
#EBEDF4
border
#C6C8CE
text
#07080F
muted
#7A7B7F

Preview Lab

Preview with #1C4582

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

Preview Lab → · Contrast checker → · Palette generator →

#1C4582 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva