#155F5B#155F5B

#155F5B is a dark, moderate teal. Relative luminance 0.091; OKLCH L 44.1% C 0.069 H 189.5°. Best body text is #FFFFFF at 7.45:1 contrast (WCAG AA passes).

Color values

HEX#155F5B
RGBrgb(21, 95, 91)
HSLhsl(177, 64%, 23%)
HSVhsv(177, 78%, 37%)
CMYKcmyk(77.9%, 0%, 4.2%, 62.7%)
CIE-LABlab(36.17, -22.65, -4.09)
CIE-LCHlch(36.17, 23.02, 190.23°)
OKLaboklab(44.14% -0.0683 -0.0115)
OKLCHoklch(44.14% 0.069 189.5)
XYZxyz(6.2889, 9.0984, 11.3202)
Luminance0.0910 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#155F5B #5F1519
analogous
#155F36 #155F5B #153E5F
triadic
#155F5B #5B155F #5F5B15
tetradic
#155F5B #36155F #5F1519 #3E5F15
square
#155F5B #36155F #5F1519 #3E5F15
split-complementary
#155F5B #5F153E #5F3615
monochromatic
#061918 #0A2D2B #155F5B #20918B #2BC3BB

Accessibility & contrast

On white

7.45
#155F5B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.82
#155F5B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155F5B
7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##155F5B#FFFFFF#000000##FFFFFF
##155F5B1.007.452.827.45
#FFFFFF7.451.0021.001.00
#0000002.8221.001.0021.00
##FFFFFF7.451.0021.001.00

Color blindness preview

Protanopia (red-blind)
#595A5B
Deuteranopia (green-blind)
#4F525C
Tritanopia (blue-blind)
#00625E
Achromatopsia (no color)
#555555

Design tokens & code

CSS
--color: #155f5b;
/* rgb */ color: rgb(21, 95, 91);
/* oklch */ color: oklch(44.1% 0.069 189.5);
Tailwind
colors: {
  custom: {
    50: '#608d89',
    500: '#155f5b',
    950: '#000000',
  },
}
SCSS
$custom: #155f5b;
$custom-light: #608d89;
$custom-dark: #000000;
JSON
{
  "hex": "#155f5b",
  "rgb": {
    "r": 21,
    "g": 95,
    "b": 91
  },
  "hsl": {
    "h": 176.757,
    "s": 63.793,
    "l": 22.745
  },
  "oklch": {
    "l": 0.44139,
    "c": 0.06928,
    "h": 189.5
  },
  "luminance": 0.09099
}

Semantic roles & 50–950 ramp

primary
#155F5B
secondary
#963A3F
accent
#414AE7
background
#F6F8F8
surface
#EBF0F0
border
#C6CBCB
text
#050C0B
muted
#7A7D7C

Preview Lab

Preview with #155F5B

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

Preview Lab → · Contrast checker → · Palette generator →

#155F5B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva