#155C78#155C78

#155C78 is a dark, moderate cyan. Relative luminance 0.092; OKLCH L 44.6% C 0.080 H 229.8°. Best body text is #FFFFFF at 7.41:1 contrast (WCAG AA passes).

Color values

HEX#155C78
RGBrgb(21, 92, 120)
HSLhsl(197, 70%, 28%)
HSVhsv(197, 83%, 47%)
CMYKcmyk(82.5%, 23.3%, 0%, 52.9%)
CIE-LABlab(36.31, -10.76, -21.85)
CIE-LCHlch(36.31, 24.36, 243.77°)
OKLaboklab(44.63% -0.0519 -0.0615)
OKLCHoklch(44.63% 0.08 229.8)
XYZxyz(7.5252, 9.1689, 19.1388)
Luminance0.0917 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#155C78 #783115
analogous
#157863 #155C78 #152A78
triadic
#155C78 #78155C #5C7815
tetradic
#155C78 #631578 #783115 #2A7815
square
#155C78 #631578 #783115 #2A7815
split-complementary
#155C78 #78152A #786315
monochromatic
#05141A #0C3444 #155C78 #1E84AC #2DA9DA

Accessibility & contrast

On white

7.41
#155C78 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.83
#155C78 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155C78
7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##155C78#FFFFFF#000000##FFFFFF
##155C781.007.412.837.41
#FFFFFF7.411.0021.001.00
#0000002.8321.001.0021.00
##FFFFFF7.411.0021.001.00

Color blindness preview

Protanopia (red-blind)
#4E5B79
Deuteranopia (green-blind)
#405178
Tritanopia (blue-blind)
#006465
Achromatopsia (no color)
#555555

Design tokens & code

CSS
--color: #155c78;
/* rgb */ color: rgb(21, 92, 120);
/* oklch */ color: oklch(44.6% 0.080 229.8);
Tailwind
colors: {
  custom: {
    50: '#648a9f',
    500: '#155c78',
    950: '#000000',
  },
}
SCSS
$custom: #155c78;
$custom-light: #648a9f;
$custom-dark: #000000;
JSON
{
  "hex": "#155c78",
  "rgb": {
    "r": 21,
    "g": 92,
    "b": 120
  },
  "hsl": {
    "h": 196.97,
    "s": 70.213,
    "l": 27.647
  },
  "oklch": {
    "l": 0.44626,
    "c": 0.08045,
    "h": 229.8
  },
  "luminance": 0.0917
}

Semantic roles & 50–950 ramp

primary
#155C78
secondary
#AE5C3B
accent
#6D3BED
background
#F6F8F9
surface
#EBF0F2
border
#C6CBCC
text
#060B0E
muted
#7A7C7E

Preview Lab

Preview with #155C78

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

Preview Lab → · Contrast checker → · Palette generator →

#155C78 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva