#155B56#155B56

#155B56 is a dark, moderate teal. Relative luminance 0.083; OKLCH L 42.8% C 0.067 H 187.9°. Best body text is #FFFFFF at 7.89:1 contrast (WCAG AA passes).

Color values

HEX	#155B56
RGB	rgb(21, 91, 86)
HSL	hsl(176, 63%, 22%)
HSV	hsv(176, 77%, 36%)
CMYK	cmyk(76.9%, 0%, 5.5%, 64.3%)
CIE-LAB	lab(34.63, -22.17, -3.26)
CIE-LCH	lch(34.63, 22.41, 188.37°)
OKLab	oklab(42.83% -0.0664 -0.0092)
OKLCH	oklch(42.83% 0.067 187.9)
XYZ	xyz(5.7293, 8.3128, 10.1049)
Luminance	0.0831 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155B56 #5B151A

analogous

#155B33 #155B56 #153D5B

triadic

#155B56 #56155B #5B5615

tetradic

#155B56 #33155B #5B151A #3D5B15

square

#155B56 #33155B #5B151A #3D5B15

split-complementary

#155B56 #5B153D #5B3315

monochromatic

#061917 #0A2927 #155B56 #208D85 #2CBEB4

Accessibility & contrast

On white

7.89

#155B56 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#155B56 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155B56

7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155B56	#FFFFFF	#000000	##FFFFFF
##155B56	1.00	7.89	2.66	7.89
#FFFFFF	7.89	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#565656

Deuteranopia (green-blind)

#4C4E57

Tritanopia (blue-blind)

#005D59

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #155b56;
/* rgb */ color: rgb(21, 91, 86);
/* oklch */ color: oklch(42.8% 0.067 187.9);

Tailwind

colors: {
  custom: {
    50: '#5f8a85',
    500: '#155b56',
    950: '#000000',
  },
}

SCSS

$custom: #155b56;
$custom-light: #5f8a85;
$custom-dark: #000000;

JSON

{
  "hex": "#155b56",
  "rgb": {
    "r": 21,
    "g": 91,
    "b": 86
  },
  "hsl": {
    "h": 175.714,
    "s": 62.5,
    "l": 21.961
  },
  "oklch": {
    "l": 0.42826,
    "c": 0.06698,
    "h": 187.9
  },
  "luminance": 0.08313
}

Semantic roles & 50–950 ramp

primary

#155B56

secondary

#923940

accent

#424EE6

background

#F5F8F8

surface

#EAF0EF

border

#C6CBCA

text

#050B0B

muted

#797C7C

Preview Lab

Preview with #155B56

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

Preview Lab → · Contrast checker → · Palette generator →