#155A78#155A78

#155A78 is a dark, moderate cyan. Relative luminance 0.088; OKLCH L 44.1% C 0.081 H 232.3°. Best body text is #FFFFFF at 7.59:1 contrast (WCAG AA passes).

Color values

HEX#155A78
RGBrgb(21, 90, 120)
HSLhsl(198, 70%, 28%)
HSVhsv(198, 83%, 47%)
CMYKcmyk(82.5%, 25%, 0%, 52.9%)
CIE-LABlab(35.65, -9.56, -22.87)
CIE-LCHlch(35.65, 24.79, 247.31°)
OKLaboklab(44.1% -0.0498 -0.0644)
OKLCHoklch(44.1% 0.081 232.3)
XYZxyz(7.3542, 8.8269, 19.0818)
Luminance0.0883 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#155A78 #783315
analogous
#157865 #155A78 #152878
triadic
#155A78 #78155A #5A7815
tetradic
#155A78 #651578 #783315 #287815
square
#155A78 #651578 #783315 #287815
split-complementary
#155A78 #781528 #786515
monochromatic
#05141A #0C3344 #155A78 #1E81AC #2DA6DA

Accessibility & contrast

On white

7.59
#155A78 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.77
#155A78 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155A78
7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##155A78#FFFFFF#000000##FFFFFF
##155A781.007.592.777.59
#FFFFFF7.591.0021.001.00
#0000002.7721.001.0021.00
##FFFFFF7.591.0021.001.00

Color blindness preview

Protanopia (red-blind)
#4B5979
Deuteranopia (green-blind)
#3E5078
Tritanopia (blue-blind)
#006264
Achromatopsia (no color)
#545454

Design tokens & code

CSS
--color: #155a78;
/* rgb */ color: rgb(21, 90, 120);
/* oklch */ color: oklch(44.1% 0.081 232.3);
Tailwind
colors: {
  custom: {
    50: '#64889f',
    500: '#155a78',
    950: '#000000',
  },
}
SCSS
$custom: #155a78;
$custom-light: #64889f;
$custom-dark: #000000;
JSON
{
  "hex": "#155a78",
  "rgb": {
    "r": 21,
    "g": 90,
    "b": 120
  },
  "hsl": {
    "h": 198.182,
    "s": 70.213,
    "l": 27.647
  },
  "oklch": {
    "l": 0.441,
    "c": 0.08147,
    "h": 232.3
  },
  "luminance": 0.08828
}

Semantic roles & 50–950 ramp

primary
#155A78
secondary
#AE5E3B
accent
#713BED
background
#F6F8F9
surface
#EBEFF2
border
#C6CACC
text
#060B0E
muted
#7A7C7E

Preview Lab

Preview with #155A78

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

Preview Lab → · Contrast checker → · Palette generator →

#155A78 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva