#155D5B#155D5B

#155D5B is a dark, moderate teal. Relative luminance 0.087; OKLCH L 43.6% C 0.068 H 192.2°. Best body text is #FFFFFF at 7.64:1 contrast (WCAG AA passes).

Color values

HEX#155D5B
RGBrgb(21, 93, 91)
HSLhsl(178, 63%, 22%)
HSVhsv(178, 77%, 36%)
CMYKcmyk(77.4%, 0%, 2.2%, 63.5%)
CIE-LABlab(35.48, -21.61, -5.11)
CIE-LCHlch(35.48, 22.20, 193.31°)
OKLaboklab(43.58% -0.0661 -0.0142)
OKLCHoklch(43.58% 0.068 192.2)
XYZxyz(6.1111, 8.7427, 11.2609)
Luminance0.0874 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#155D5B #5D1517
analogous
#155D37 #155D5B #153B5D
triadic
#155D5B #5B155D #5D5B15
tetradic
#155D5B #37155D #5D1517 #3B5D15
square
#155D5B #37155D #5D1517 #3B5D15
split-complementary
#155D5B #5D153B #5D3715
monochromatic
#061918 #0A2B2A #155D5B #208F8C #2CC1BD

Accessibility & contrast

On white

7.64
#155D5B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.75
#155D5B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155D5B
7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##155D5B#FFFFFF#000000##FFFFFF
##155D5B1.007.642.757.64
#FFFFFF7.641.0021.001.00
#0000002.7521.001.0021.00
##FFFFFF7.641.0021.001.00

Color blindness preview

Protanopia (red-blind)
#57585B
Deuteranopia (green-blind)
#4C505C
Tritanopia (blue-blind)
#00605C
Achromatopsia (no color)
#535353

Design tokens & code

CSS
--color: #155d5b;
/* rgb */ color: rgb(21, 93, 91);
/* oklch */ color: oklch(43.6% 0.068 192.2);
Tailwind
colors: {
  custom: {
    50: '#608b89',
    500: '#155d5b',
    950: '#000000',
  },
}
SCSS
$custom: #155d5b;
$custom-light: #608b89;
$custom-dark: #000000;
JSON
{
  "hex": "#155d5b",
  "rgb": {
    "r": 21,
    "g": 93,
    "b": 91
  },
  "hsl": {
    "h": 178.333,
    "s": 63.158,
    "l": 22.353
  },
  "oklch": {
    "l": 0.43579,
    "c": 0.0676,
    "h": 192.2
  },
  "luminance": 0.08743
}

Semantic roles & 50–950 ramp

primary
#155D5B
secondary
#94393C
accent
#4246E6
background
#F6F8F8
surface
#EBF0F0
border
#C6CBCB
text
#050C0B
muted
#7A7D7C

Preview Lab

Preview with #155D5B

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

Preview Lab → · Contrast checker → · Palette generator →

#155D5B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva