#155B75#155B75

#155B75 is a dark, moderate cyan. Relative luminance 0.089; OKLCH L 44.2% C 0.078 H 228.2°. Best body text is #FFFFFF at 7.54:1 contrast (WCAG AA passes).

Color values

HEX#155B75
RGBrgb(21, 91, 117)
HSLhsl(196, 70%, 27%)
HSVhsv(196, 82%, 46%)
CMYKcmyk(82.1%, 22.2%, 0%, 54.1%)
CIE-LABlab(35.84, -11.30, -20.72)
CIE-LCHlch(35.84, 23.61, 241.40°)
OKLaboklab(44.21% -0.052 -0.0582)
OKLCHoklch(44.21% 0.078 228.2)
XYZxyz(7.2599, 8.9251, 18.1663)
Luminance0.0893 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#155B75 #752F15
analogous
#15755F #155B75 #152B75
triadic
#155B75 #75155B #5B7515
tetradic
#155B75 #5F1575 #752F15 #2B7515
square
#155B75 #5F1575 #752F15 #2B7515
split-complementary
#155B75 #75152B #755F15
monochromatic
#05141A #0C3341 #155B75 #1E83A9 #2BAAD9

Accessibility & contrast

On white

7.54
#155B75 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.79
#155B75 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155B75
7.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##155B75#FFFFFF#000000##FFFFFF
##155B751.007.542.797.54
#FFFFFF7.541.0021.001.00
#0000002.7921.001.0021.00
##FFFFFF7.541.0021.001.00

Color blindness preview

Protanopia (red-blind)
#4D5976
Deuteranopia (green-blind)
#415075
Tritanopia (blue-blind)
#006264
Achromatopsia (no color)
#545454

Design tokens & code

CSS
--color: #155b75;
/* rgb */ color: rgb(21, 91, 117);
/* oklch */ color: oklch(44.2% 0.078 228.2);
Tailwind
colors: {
  custom: {
    50: '#64899d',
    500: '#155b75',
    950: '#000000',
  },
}
SCSS
$custom: #155b75;
$custom-light: #64899d;
$custom-dark: #000000;
JSON
{
  "hex": "#155b75",
  "rgb": {
    "r": 21,
    "g": 91,
    "b": 117
  },
  "hsl": {
    "h": 196.25,
    "s": 69.565,
    "l": 27.059
  },
  "oklch": {
    "l": 0.44207,
    "c": 0.07812,
    "h": 228.2
  },
  "luminance": 0.08926
}

Semantic roles & 50–950 ramp

primary
#155B75
secondary
#AB593B
accent
#6B3BEC
background
#F6F8F9
surface
#EBF0F2
border
#C6CBCC
text
#060B0E
muted
#7A7C7E

Preview Lab

Preview with #155B75

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

Preview Lab → · Contrast checker → · Palette generator →

#155B75 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva