#155D5A#155D5A

#155D5A is a dark, moderate teal. Relative luminance 0.087; OKLCH L 43.5% C 0.068 H 190.8°. Best body text is #FFFFFF at 7.65:1 contrast (WCAG AA passes).

Color values

HEX	#155D5A
RGB	rgb(21, 93, 90)
HSL	hsl(178, 63%, 22%)
HSV	hsv(178, 77%, 36%)
CMYK	cmyk(77.4%, 0%, 3.2%, 63.5%)
CIE-LAB	lab(35.45, -21.93, -4.54)
CIE-LCH	lch(35.45, 22.40, 191.69°)
OKLab	oklab(43.54% -0.0666 -0.0127)
OKLCH	oklch(43.54% 0.068 190.8)
XYZ	xyz(6.0682, 8.7256, 11.0353)
Luminance	0.0873 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155D5A #5D1518

analogous

#155D36 #155D5A #153C5D

triadic

#155D5A #5A155D #5D5A15

tetradic

#155D5A #36155D #5D1518 #3C5D15

square

#155D5A #36155D #5D1518 #3C5D15

split-complementary

#155D5A #5D153C #5D3615

monochromatic

#061918 #0A2B2A #155D5A #208F8A #2CC1BB

Accessibility & contrast

On white

7.65

#155D5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#155D5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155D5A

7.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155D5A	#FFFFFF	#000000	##FFFFFF
##155D5A	1.00	7.65	2.75	7.65
#FFFFFF	7.65	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#57585A

Deuteranopia (green-blind)

#4D505B

Tritanopia (blue-blind)

#00605C

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #155d5a;
/* rgb */ color: rgb(21, 93, 90);
/* oklch */ color: oklch(43.5% 0.068 190.8);

Tailwind

colors: {
  custom: {
    50: '#608b88',
    500: '#155d5a',
    950: '#000000',
  },
}

SCSS

$custom: #155d5a;
$custom-light: #608b88;
$custom-dark: #000000;

JSON

{
  "hex": "#155d5a",
  "rgb": {
    "r": 21,
    "g": 93,
    "b": 90
  },
  "hsl": {
    "h": 177.5,
    "s": 63.158,
    "l": 22.353
  },
  "oklch": {
    "l": 0.4354,
    "c": 0.06779,
    "h": 190.8
  },
  "luminance": 0.08726
}

Semantic roles & 50–950 ramp

primary

#155D5A

secondary

#94393D

accent

#4248E6

background

#F6F8F8

surface

#EBF0EF

border

#C6CBCA

text

#050C0B

muted

#7A7D7C

Preview Lab

Preview with #155D5A

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

Preview Lab → · Contrast checker → · Palette generator →