#1B4765#1B4765

#1B4765 is a dark, moderate cyan. Relative luminance 0.057; OKLCH L 38.2% C 0.070 H 241.8°. Best body text is #FFFFFF at 9.83:1 contrast (WCAG AA passes).

Color values

HEX#1B4765
RGBrgb(27, 71, 101)
HSLhsl(204, 58%, 25%)
HSVhsv(204, 73%, 40%)
CMYKcmyk(73.3%, 29.7%, 0%, 60.4%)
CIE-LABlab(28.59, -4.17, -21.96)
CIE-LCHlch(28.59, 22.35, 259.24°)
OKLaboklab(38.22% -0.0332 -0.062)
OKLCHoklch(38.22% 0.07 241.8)
XYZxyz(5.0533, 5.6785, 13.1391)
Luminance0.0568 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B4765 #65391B
analogous
#1B655E #1B4765 #1B2265
triadic
#1B4765 #651B47 #47651B
tetradic
#1B4765 #5E1B65 #65391B #22651B
square
#1B4765 #5E1B65 #65391B #22651B
split-complementary
#1B4765 #651B22 #655E1B
monochromatic
#061118 #0E2535 #1B4765 #286995 #358BC6

Accessibility & contrast

On white

9.83
#1B4765 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.14
#1B4765 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4765
9.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B4765#FFFFFF#000000##FFFFFF
##1B47651.009.832.149.83
#FFFFFF9.831.0021.001.00
#0000002.1421.001.0021.00
##FFFFFF9.831.0021.001.00

Color blindness preview

Protanopia (red-blind)
#394766
Deuteranopia (green-blind)
#2F4064
Tritanopia (blue-blind)
#004E51
Achromatopsia (no color)
#434343

Design tokens & code

CSS
--color: #1b4765;
/* rgb */ color: rgb(27, 71, 101);
/* oklch */ color: oklch(38.2% 0.070 241.8);
Tailwind
colors: {
  custom: {
    50: '#617a91',
    500: '#1b4765',
    950: '#000000',
  },
}
SCSS
$custom: #1b4765;
$custom-light: #617a91;
$custom-dark: #000000;
JSON
{
  "hex": "#1b4765",
  "rgb": {
    "r": 27,
    "g": 71,
    "b": 101
  },
  "hsl": {
    "h": 204.324,
    "s": 57.813,
    "l": 25.098
  },
  "oklch": {
    "l": 0.38225,
    "c": 0.07031,
    "h": 241.8
  },
  "luminance": 0.05679
}

Semantic roles & 50–950 ramp

primary
#1B4765
secondary
#9A6541
accent
#8547E1
background
#F6F7F8
surface
#EBEDF0
border
#C6C8CB
text
#05090C
muted
#7A7B7D

Preview Lab

Preview with #1B4765

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

Preview Lab → · Contrast checker → · Palette generator →

#1B4765 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva