#1B8198#1B8198

#1B8198 is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 55.9% C 0.093 H 217.5°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX#1B8198
RGBrgb(27, 129, 152)
HSLhsl(191, 70%, 35%)
HSVhsv(191, 82%, 60%)
CMYKcmyk(82.2%, 15.1%, 0%, 40.4%)
CIE-LABlab(49.74, -19.49, -20.29)
CIE-LCHlch(49.74, 28.14, 226.15°)
OKLaboklab(55.89% -0.074 -0.0567)
OKLCHoklch(55.89% 0.093 217.5)
XYZxyz(13.9673, 18.1988, 32.4762)
Luminance0.1820 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B8198 #98321B
analogous
#1B9870 #1B8198 #1B4398
triadic
#1B8198 #981B81 #81981B
tetradic
#1B8198 #701B98 #98321B #43981B
square
#1B8198 #701B98 #98321B #43981B
split-complementary
#1B8198 #981B43 #98701B
monochromatic
#092930 #125564 #1B8198 #24ADCC #4EC5E0

Accessibility & contrast

On white

4.53
#1B8198 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.64
#1B8198 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B8198
4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B8198#FFFFFF#000000##000000
##1B81981.004.534.644.64
#FFFFFF4.531.0021.0021.00
#0000004.6421.001.001.00
##0000004.6421.001.001.00

Color blindness preview

Protanopia (red-blind)
#727D99
Deuteranopia (green-blind)
#627198
Tritanopia (blue-blind)
#008988
Achromatopsia (no color)
#767676

Design tokens & code

CSS
--color: #1b8198;
/* rgb */ color: rgb(27, 129, 152);
/* oklch */ color: oklch(55.9% 0.093 217.5);
Tailwind
colors: {
  custom: {
    50: '#6fa5b6',
    500: '#1b8198',
    950: '#000000',
  },
}
SCSS
$custom: #1b8198;
$custom-light: #6fa5b6;
$custom-dark: #000000;
JSON
{
  "hex": "#1b8198",
  "rgb": {
    "r": 27,
    "g": 129,
    "b": 152
  },
  "hsl": {
    "h": 191.04,
    "s": 69.832,
    "l": 35.098
  },
  "oklch": {
    "l": 0.55885,
    "c": 0.09326,
    "h": 217.5
  },
  "luminance": 0.18201
}

Semantic roles & 50–950 ramp

primary
#1B8198
secondary
#C2624D
accent
#5C3BED
background
#F7FAFB
surface
#EDF4F6
border
#C8CED0
text
#090F11
muted
#7B7F80

Preview Lab

Preview with #1B8198

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

Preview Lab → · Contrast checker → · Palette generator →

#1B8198 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva