#1B5684#1B5684

#1B5684 is a dark, moderate cyan. Relative luminance 0.086; OKLCH L 43.9% C 0.096 H 246.3°. Best body text is #FFFFFF at 7.75:1 contrast (WCAG AA passes).

Color values

HEX#1B5684
RGBrgb(27, 86, 132)
HSLhsl(206, 66%, 31%)
HSVhsv(206, 80%, 52%)
CMYKcmyk(79.5%, 34.8%, 0%, 48.2%)
CIE-LABlab(35.11, -1.70, -31.09)
CIE-LCHlch(35.11, 31.14, 266.87°)
OKLaboklab(43.92% -0.0387 -0.0883)
OKLCHoklch(43.92% 0.096 246.3)
XYZxyz(7.9430, 8.5536, 23.0577)
Luminance0.0856 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B5684 #84491B
analogous
#1B847D #1B5684 #1B2184
triadic
#1B5684 #841B56 #56841B
tetradic
#1B5684 #7D1B84 #84491B #21841B
square
#1B5684 #7D1B84 #84491B #21841B
split-complementary
#1B5684 #841B21 #847D1B
monochromatic
#06141E #113551 #1B5684 #2577B7 #4196D8

Accessibility & contrast

On white

7.75
#1B5684 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.71
#1B5684 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5684
7.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B5684#FFFFFF#000000##FFFFFF
##1B56841.007.752.717.75
#FFFFFF7.751.0021.001.00
#0000002.7121.001.0021.00
##FFFFFF7.751.0021.001.00

Color blindness preview

Protanopia (red-blind)
#415886
Deuteranopia (green-blind)
#324E83
Tritanopia (blue-blind)
#006167
Achromatopsia (no color)
#535353

Design tokens & code

CSS
--color: #1b5684;
/* rgb */ color: rgb(27, 86, 132);
/* oklch */ color: oklch(43.9% 0.096 246.3);
Tailwind
colors: {
  custom: {
    50: '#6885a8',
    500: '#1b5684',
    950: '#000000',
  },
}
SCSS
$custom: #1b5684;
$custom-light: #6885a8;
$custom-dark: #000000;
JSON
{
  "hex": "#1b5684",
  "rgb": {
    "r": 27,
    "g": 86,
    "b": 132
  },
  "hsl": {
    "h": 206.286,
    "s": 66.038,
    "l": 31.176
  },
  "oklch": {
    "l": 0.43915,
    "c": 0.09647,
    "h": 246.3
  },
  "luminance": 0.08555
}

Semantic roles & 50–950 ramp

primary
#1B5684
secondary
#B77643
accent
#893FE9
background
#F6F8FA
surface
#ECEFF4
border
#C7CACE
text
#070B0F
muted
#7A7C7F

Preview Lab

Preview with #1B5684

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

Preview Lab → · Contrast checker → · Palette generator →

#1B5684 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva