#155C70#155C70

#155C70 is a dark, moderate cyan. Relative luminance 0.090; OKLCH L 44.2% C 0.074 H 221.5°. Best body text is #FFFFFF at 7.51:1 contrast (WCAG AA passes).

Color values

HEX#155C70
RGBrgb(21, 92, 112)
HSLhsl(193, 68%, 26%)
HSVhsv(193, 81%, 44%)
CMYKcmyk(81.2%, 17.9%, 0%, 56.1%)
CIE-LABlab(35.95, -13.75, -17.46)
CIE-LCHlch(35.95, 22.22, 231.78°)
OKLaboklab(44.22% -0.0552 -0.0489)
OKLCHoklch(44.22% 0.074 221.5)
XYZxyz(7.0598, 8.9827, 16.6878)
Luminance0.0898 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#155C70 #702915
analogous
#157056 #155C70 #152E70
triadic
#155C70 #70155C #5C7015
tetradic
#155C70 #561570 #702915 #2E7015
square
#155C70 #561570 #702915 #2E7015
split-complementary
#155C70 #70152E #705615
monochromatic
#05151A #0B323C #155C70 #1F86A4 #29B1D7

Accessibility & contrast

On white

7.51
#155C70 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.80
#155C70 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155C70
7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##155C70#FFFFFF#000000##FFFFFF
##155C701.007.512.807.51
#FFFFFF7.511.0021.001.00
#0000002.8021.001.0021.00
##FFFFFF7.511.0021.001.00

Color blindness preview

Protanopia (red-blind)
#505A71
Deuteranopia (green-blind)
#445170
Tritanopia (blue-blind)
#006262
Achromatopsia (no color)
#555555

Design tokens & code

CSS
--color: #155c70;
/* rgb */ color: rgb(21, 92, 112);
/* oklch */ color: oklch(44.2% 0.074 221.5);
Tailwind
colors: {
  custom: {
    50: '#638a99',
    500: '#155c70',
    950: '#000000',
  },
}
SCSS
$custom: #155c70;
$custom-light: #638a99;
$custom-dark: #000000;
JSON
{
  "hex": "#155c70",
  "rgb": {
    "r": 21,
    "g": 92,
    "b": 112
  },
  "hsl": {
    "h": 193.187,
    "s": 68.421,
    "l": 26.078
  },
  "oklch": {
    "l": 0.44223,
    "c": 0.07372,
    "h": 221.5
  },
  "luminance": 0.08984
}

Semantic roles & 50–950 ramp

primary
#155C70
secondary
#A6523B
accent
#633DEB
background
#F6F8F9
surface
#EBF0F2
border
#C6CBCC
text
#060B0D
muted
#7A7C7E

Preview Lab

Preview with #155C70

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

Preview Lab → · Contrast checker → · Palette generator →

#155C70 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva