#155A5A#155A5A

#155A5A is a dark, moderate teal. Relative luminance 0.082; OKLCH L 42.7% C 0.065 H 195.0°. Best body text is #FFFFFF at 7.95:1 contrast (WCAG AA passes).

Color values

HEX	#155A5A
RGB	rgb(21, 90, 90)
HSL	hsl(180, 62%, 22%)
HSV	hsv(180, 77%, 35%)
CMYK	cmyk(76.7%, 0%, 0%, 64.7%)
CIE-LAB	lab(34.41, -20.34, -6.08)
CIE-LCH	lch(34.41, 21.23, 196.64°)
OKLab	oklab(42.7% -0.0632 -0.0169)
OKLCH	oklch(42.7% 0.065 195)
XYZ	xyz(5.8100, 8.2093, 10.9492)
Luminance	0.0821 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155A5A #5A1515

analogous

#155A38 #155A5A #15385A

triadic

#155A5A #5A155A #5A5A15

tetradic

#155A5A #38155A #5A1515 #385A15

square

#155A5A #38155A #5A1515 #385A15

split-complementary

#155A5A #5A1538 #5A3815

monochromatic

#061919 #092828 #155A5A #218C8C #2CBDBD

Accessibility & contrast

On white

7.95

#155A5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#155A5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155A5A

7.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155A5A	#FFFFFF	#000000	##FFFFFF
##155A5A	1.00	7.95	2.64	7.95
#FFFFFF	7.95	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#54555A

Deuteranopia (green-blind)

#494E5A

Tritanopia (blue-blind)

#005D5A

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #155a5a;
/* rgb */ color: rgb(21, 90, 90);
/* oklch */ color: oklch(42.7% 0.065 195.0);

Tailwind

colors: {
  custom: {
    50: '#608988',
    500: '#155a5a',
    950: '#000000',
  },
}

SCSS

$custom: #155a5a;
$custom-light: #608988;
$custom-dark: #000000;

JSON

{
  "hex": "#155a5a",
  "rgb": {
    "r": 21,
    "g": 90,
    "b": 90
  },
  "hsl": {
    "h": 180,
    "s": 62.162,
    "l": 21.765
  },
  "oklch": {
    "l": 0.42699,
    "c": 0.06541,
    "h": 195
  },
  "luminance": 0.0821
}

Semantic roles & 50–950 ramp

primary

#155A5A

secondary

#923939

accent

#4343E5

background

#F6F8F8

surface

#EBF0EF

border

#C6CBCA

text

#050B0B

muted

#7A7C7C

Preview Lab

Preview with #155A5A

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

Preview Lab → · Contrast checker → · Palette generator →