#1C4B83#1C4B83

#1C4B83 is a dark, moderate cyan. Relative luminance 0.069; OKLCH L 41.2% C 0.107 H 254.9°. Best body text is #FFFFFF at 8.81:1 contrast (WCAG AA passes).

Color values

HEX#1C4B83
RGBrgb(28, 75, 131)
HSLhsl(213, 65%, 31%)
HSVhsv(213, 79%, 51%)
CMYKcmyk(78.6%, 42.7%, 0%, 48.6%)
CIE-LABlab(31.62, 5.23, -36.02)
CIE-LCHlch(31.62, 36.40, 278.27°)
OKLaboklab(41.17% -0.0278 -0.103)
OKLCHoklch(41.17% 0.107 254.9)
XYZxyz(7.0902, 6.9169, 22.4297)
Luminance0.0692 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1C4B83 #83541C
analogous
#1C7E83 #1C4B83 #201C83
triadic
#1C4B83 #831C4B #4B831C
tetradic
#1C4B83 #831C7E #83541C #1C8320
square
#1C4B83 #831C7E #83541C #1C8320
split-complementary
#1C4B83 #83201C #7E831C
monochromatic
#06111E #112E51 #1C4B83 #2768B5 #4386D7

Accessibility & contrast

On white

8.81
#1C4B83 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.38
#1C4B83 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4B83
8.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1C4B83#FFFFFF#000000##FFFFFF
##1C4B831.008.812.388.81
#FFFFFF8.811.0021.001.00
#0000002.3821.001.0021.00
##FFFFFF8.811.0021.001.00

Color blindness preview

Protanopia (red-blind)
#304F85
Deuteranopia (green-blind)
#1E4682
Tritanopia (blue-blind)
#005860
Achromatopsia (no color)
#4A4A4A

Design tokens & code

CSS
--color: #1c4b83;
/* rgb */ color: rgb(28, 75, 131);
/* oklch */ color: oklch(41.2% 0.107 254.9);
Tailwind
colors: {
  custom: {
    50: '#687ca7',
    500: '#1c4b83',
    950: '#000000',
  },
}
SCSS
$custom: #1c4b83;
$custom-light: #687ca7;
$custom-dark: #000000;
JSON
{
  "hex": "#1c4b83",
  "rgb": {
    "r": 28,
    "g": 75,
    "b": 131
  },
  "hsl": {
    "h": 212.621,
    "s": 64.78,
    "l": 31.176
  },
  "oklch": {
    "l": 0.4117,
    "c": 0.10667,
    "h": 254.9
  },
  "luminance": 0.06918
}

Semantic roles & 50–950 ramp

primary
#1C4B83
secondary
#B68245
accent
#9B40E8
background
#F6F7FA
surface
#ECEEF4
border
#C7C9CE
text
#07090F
muted
#7A7B7F

Preview Lab

Preview with #1C4B83

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

Preview Lab → · Contrast checker → · Palette generator →

#1C4B83 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva