#155E7C#155E7C

#155E7C is a mid, moderate cyan. Relative luminance 0.096; OKLCH L 45.4% C 0.083 H 231.0°. Best body text is #FFFFFF at 7.18:1 contrast (WCAG AA passes).

Color values

HEX#155E7C
RGBrgb(21, 94, 124)
HSLhsl(197, 71%, 28%)
HSVhsv(197, 83%, 49%)
CMYKcmyk(83.1%, 24.2%, 0%, 51.4%)
CIE-LABlab(37.15, -10.44, -23.00)
CIE-LCHlch(37.15, 25.26, 245.58°)
OKLaboklab(45.36% -0.0524 -0.0648)
OKLCHoklch(45.36% 0.083 231)
XYZxyz(7.9486, 9.6191, 20.5026)
Luminance0.0962 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#155E7C #7C3315
analogous
#157C66 #155E7C #152A7C
triadic
#155E7C #7C155E #5E7C15
tetradic
#155E7C #66157C #7C3315 #2A7C15
square
#155E7C #66157C #7C3315 #2A7C15
split-complementary
#155E7C #7C152A #7C6615
monochromatic
#04141A #0C3648 #155E7C #1E86B0 #30AADC

Accessibility & contrast

On white

7.18
#155E7C on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.92
#155E7C on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155E7C
7.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##155E7C#FFFFFF#000000##FFFFFF
##155E7C1.007.182.927.18
#FFFFFF7.181.0021.001.00
#0000002.9221.001.0021.00
##FFFFFF7.181.0021.001.00

Color blindness preview

Protanopia (red-blind)
#4F5D7D
Deuteranopia (green-blind)
#41537C
Tritanopia (blue-blind)
#006668
Achromatopsia (no color)
#575757

Design tokens & code

CSS
--color: #155e7c;
/* rgb */ color: rgb(21, 94, 124);
/* oklch */ color: oklch(45.4% 0.083 231.0);
Tailwind
colors: {
  custom: {
    50: '#658ba2',
    500: '#155e7c',
    950: '#000000',
  },
}
SCSS
$custom: #155e7c;
$custom-light: #658ba2;
$custom-dark: #000000;
JSON
{
  "hex": "#155e7c",
  "rgb": {
    "r": 21,
    "g": 94,
    "b": 124
  },
  "hsl": {
    "h": 197.476,
    "s": 71.034,
    "l": 28.431
  },
  "oklch": {
    "l": 0.45361,
    "c": 0.08329,
    "h": 231
  },
  "luminance": 0.0962
}

Semantic roles & 50–950 ramp

primary
#155E7C
secondary
#B15E3C
accent
#6E3AEE
background
#F6F8F9
surface
#EBF0F2
border
#C6CBCC
text
#070C0F
muted
#7A7D7E

Preview Lab

Preview with #155E7C

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

Preview Lab → · Contrast checker → · Palette generator →

#155E7C Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva