#1B87A0#1B87A0

#1B87A0 is a mid, moderate cyan. Relative luminance 0.201; OKLCH L 57.8% C 0.097 H 218.2°. Best body text is #000000 at 5.02:1 contrast (WCAG AA passes).

Color values

HEX#1B87A0
RGBrgb(27, 135, 160)
HSLhsl(191, 71%, 37%)
HSVhsv(191, 83%, 63%)
CMYKcmyk(83.1%, 15.6%, 0%, 37.3%)
CIE-LABlab(51.95, -19.95, -21.55)
CIE-LCHlch(51.95, 29.36, 227.21°)
OKLaboklab(57.77% -0.0766 -0.0603)
OKLCHoklch(57.77% 0.097 218.2)
XYZxyz(15.4584, 20.0971, 36.3153)
Luminance0.2010 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B87A0 #A0341B
analogous
#1BA077 #1B87A0 #1B45A0
triadic
#1B87A0 #A01B87 #87A01B
tetradic
#1B87A0 #771BA0 #A0341B #45A01B
square
#1B87A0 #771BA0 #A0341B #45A01B
split-complementary
#1B87A0 #A01B45 #A0771B
monochromatic
#092F37 #125B6C #1B87A0 #24B3D4 #53C7E2

Accessibility & contrast

On white

4.18
#1B87A0 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.02
#1B87A0 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B87A0
5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B87A0#FFFFFF#000000##000000
##1B87A01.004.185.025.02
#FFFFFF4.181.0021.0021.00
#0000005.0221.001.001.00
##0000005.0221.001.001.00

Color blindness preview

Protanopia (red-blind)
#7783A1
Deuteranopia (green-blind)
#6676A0
Tritanopia (blue-blind)
#008F8F
Achromatopsia (no color)
#7C7C7C

Design tokens & code

CSS
--color: #1b87a0;
/* rgb */ color: rgb(27, 135, 160);
/* oklch */ color: oklch(57.8% 0.097 218.2);
Tailwind
colors: {
  custom: {
    50: '#71aabc',
    500: '#1b87a0',
    950: '#000000',
  },
}
SCSS
$custom: #1b87a0;
$custom-light: #71aabc;
$custom-dark: #000000;
JSON
{
  "hex": "#1b87a0",
  "rgb": {
    "r": 27,
    "g": 135,
    "b": 160
  },
  "hsl": {
    "h": 191.278,
    "s": 71.123,
    "l": 36.667
  },
  "oklch": {
    "l": 0.5777,
    "c": 0.09749,
    "h": 218.2
  },
  "luminance": 0.20099
}

Semantic roles & 50–950 ramp

primary
#1B87A0
secondary
#C56752
accent
#5C3AEE
background
#F7FAFB
surface
#EDF4F6
border
#C8CED0
text
#091012
muted
#7B7F81

Preview Lab

Preview with #1B87A0

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

Preview Lab → · Contrast checker → · Palette generator →

#1B87A0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva