#155B59#155B59

#155B59 is a dark, moderate teal. Relative luminance 0.084; OKLCH L 42.9% C 0.066 H 192.1°. Best body text is #FFFFFF at 7.86:1 contrast (WCAG AA passes).

Color values

HEX	#155B59
RGB	rgb(21, 91, 89)
HSL	hsl(178, 63%, 22%)
HSV	hsv(178, 77%, 36%)
CMYK	cmyk(76.9%, 0%, 2.2%, 64.3%)
CIE-LAB	lab(34.73, -21.20, -4.99)
CIE-LCH	lch(34.73, 21.78, 193.25°)
OKLab	oklab(42.94% -0.0648 -0.0139)
OKLCH	oklch(42.94% 0.066 192.1)
XYZ	xyz(5.8527, 8.3622, 10.7549)
Luminance	0.0836 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155B59 #5B1517

analogous

#155B36 #155B59 #153A5B

triadic

#155B59 #59155B #5B5915

tetradic

#155B59 #36155B #5B1517 #3A5B15

square

#155B59 #36155B #5B1517 #3A5B15

split-complementary

#155B59 #5B153A #5B3615

monochromatic

#061918 #0A2928 #155B59 #208D8A #2CBEBA

Accessibility & contrast

On white

7.86

#155B59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#155B59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155B59

7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155B59	#FFFFFF	#000000	##FFFFFF
##155B59	1.00	7.86	2.67	7.86
#FFFFFF	7.86	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#555659

Deuteranopia (green-blind)

#4B4F5A

Tritanopia (blue-blind)

#005E5A

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #155b59;
/* rgb */ color: rgb(21, 91, 89);
/* oklch */ color: oklch(42.9% 0.066 192.1);

Tailwind

colors: {
  custom: {
    50: '#608a87',
    500: '#155b59',
    950: '#000000',
  },
}

SCSS

$custom: #155b59;
$custom-light: #608a87;
$custom-dark: #000000;

JSON

{
  "hex": "#155b59",
  "rgb": {
    "r": 21,
    "g": 91,
    "b": 89
  },
  "hsl": {
    "h": 178.286,
    "s": 62.5,
    "l": 21.961
  },
  "oklch": {
    "l": 0.4294,
    "c": 0.0663,
    "h": 192.1
  },
  "luminance": 0.08363
}

Semantic roles & 50–950 ramp

primary

#155B59

secondary

#92393C

accent

#4247E6

background

#F6F8F8

surface

#EBF0EF

border

#C6CBCA

text

#050B0B

muted

#7A7C7C

Preview Lab

Preview with #155B59

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

Preview Lab → · Contrast checker → · Palette generator →