#155B50#155B50

#155B50 is a dark, moderate teal. Relative luminance 0.082; OKLCH L 42.6% C 0.069 H 179.9°. Best body text is #FFFFFF at 7.94:1 contrast (WCAG AA passes).

Color values

HEX	#155B50
RGB	rgb(21, 91, 80)
HSL	hsl(171, 63%, 22%)
HSV	hsv(171, 77%, 36%)
CMYK	cmyk(76.9%, 0%, 12.1%, 64.3%)
CIE-LAB	lab(34.44, -24.03, 0.21)
CIE-LCH	lch(34.44, 24.04, 179.49°)
OKLab	oklab(42.61% -0.0695 0.0002)
OKLCH	oklch(42.61% 0.069 179.9)
XYZ	xyz(5.4976, 8.2201, 8.8848)
Luminance	0.0822 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155B50 #5B1520

analogous

#155B2D #155B50 #15435B

triadic

#155B50 #50155B #5B5015

tetradic

#155B50 #2D155B #5B1520 #435B15

square

#155B50 #2D155B #5B1520 #435B15

split-complementary

#155B50 #5B1543 #5B2D15

monochromatic

#061916 #0A2924 #155B50 #208D7C #2CBEA7

Accessibility & contrast

On white

7.94

#155B50 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#155B50 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155B50

7.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155B50	#FFFFFF	#000000	##FFFFFF
##155B50	1.00	7.94	2.64	7.94
#FFFFFF	7.94	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575550

Deuteranopia (green-blind)

#4D4E51

Tritanopia (blue-blind)

#005D58

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #155b50;
/* rgb */ color: rgb(21, 91, 80);
/* oklch */ color: oklch(42.6% 0.069 179.9);

Tailwind

colors: {
  custom: {
    50: '#5f8a81',
    500: '#155b50',
    950: '#000000',
  },
}

SCSS

$custom: #155b50;
$custom-light: #5f8a81;
$custom-dark: #000000;

JSON

{
  "hex": "#155b50",
  "rgb": {
    "r": 21,
    "g": 91,
    "b": 80
  },
  "hsl": {
    "h": 170.571,
    "s": 62.5,
    "l": 21.961
  },
  "oklch": {
    "l": 0.42609,
    "c": 0.06948,
    "h": 179.9
  },
  "luminance": 0.08221
}

Semantic roles & 50–950 ramp

primary

#155B50

secondary

#923947

accent

#425CE6

background

#F5F8F7

surface

#EAF0EE

border

#C6CBC9

text

#050B0A

muted

#797C7C

Preview Lab

Preview with #155B50

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

Preview Lab → · Contrast checker → · Palette generator →