#155A4A#155A4A

#155A4A is a dark, moderate teal. Relative luminance 0.080; OKLCH L 42.1% C 0.072 H 173.6°. Best body text is #FFFFFF at 8.10:1 contrast (WCAG AA passes).

Color values

HEX#155A4A
RGBrgb(21, 90, 74)
HSLhsl(166, 62%, 22%)
HSVhsv(166, 77%, 35%)
CMYKcmyk(76.7%, 0%, 17.8%, 64.7%)
CIE-LABlab(33.91, -25.31, 3.20)
CIE-LCHlch(33.91, 25.51, 172.79°)
OKLaboklab(42.12% -0.0715 0.0081)
OKLCHoklch(42.12% 0.072 173.6)
XYZxyz(5.2008, 7.9656, 7.7406)
Luminance0.0797 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#155A4A #5A1525
analogous
#155A28 #155A4A #15485A
triadic
#155A4A #4A155A #5A4A15
tetradic
#155A4A #28155A #5A1525 #485A15
square
#155A4A #28155A #5A1525 #485A15
split-complementary
#155A4A #5A1548 #5A2815
monochromatic
#061914 #092821 #155A4A #218C73 #2CBD9C

Accessibility & contrast

On white

8.10
#155A4A on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.59
#155A4A on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155A4A
8.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##155A4A#FFFFFF#000000##FFFFFF
##155A4A1.008.102.598.10
#FFFFFF8.101.0021.001.00
#0000002.5921.001.0021.00
##FFFFFF8.101.0021.001.00

Color blindness preview

Protanopia (red-blind)
#575449
Deuteranopia (green-blind)
#4D4D4B
Tritanopia (blue-blind)
#005B55
Achromatopsia (no color)
#505050

Design tokens & code

CSS
--color: #155a4a;
/* rgb */ color: rgb(21, 90, 74);
/* oklch */ color: oklch(42.1% 0.072 173.6);
Tailwind
colors: {
  custom: {
    50: '#5e897c',
    500: '#155a4a',
    950: '#000000',
  },
}
SCSS
$custom: #155a4a;
$custom-light: #5e897c;
$custom-dark: #000000;
JSON
{
  "hex": "#155a4a",
  "rgb": {
    "r": 21,
    "g": 90,
    "b": 74
  },
  "hsl": {
    "h": 166.087,
    "s": 62.162,
    "l": 21.765
  },
  "oklch": {
    "l": 0.42122,
    "c": 0.07197,
    "h": 173.6
  },
  "luminance": 0.07966
}

Semantic roles & 50–950 ramp

primary
#155A4A
secondary
#92394E
accent
#4368E5
background
#F5F8F7
surface
#EAF0EE
border
#C6CBC9
text
#050B09
muted
#797C7B

Preview Lab

Preview with #155A4A

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

Preview Lab → · Contrast checker → · Palette generator →

#155A4A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva