#155B5A#155B5A

#155B5A is a dark, moderate teal. Relative luminance 0.084; OKLCH L 43.0% C 0.066 H 193.5°. Best body text is #FFFFFF at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#155B5A
RGB	rgb(21, 91, 90)
HSL	hsl(179, 63%, 22%)
HSV	hsv(179, 77%, 36%)
CMYK	cmyk(76.9%, 0%, 1.1%, 64.3%)
CIE-LAB	lab(34.76, -20.88, -5.57)
CIE-LCH	lch(34.76, 21.61, 194.93°)
OKLab	oklab(42.98% -0.0643 -0.0155)
OKLCH	oklch(42.98% 0.066 193.5)
XYZ	xyz(5.8950, 8.3791, 10.9775)
Luminance	0.0838 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155B5A #5B1516

analogous

#155B37 #155B5A #15395B

triadic

#155B5A #5A155B #5B5A15

tetradic

#155B5A #37155B #5B1516 #395B15

square

#155B5A #37155B #5B1516 #395B15

split-complementary

#155B5A #5B1539 #5B3715

monochromatic

#061919 #0A2929 #155B5A #208D8B #2CBEBC

Accessibility & contrast

On white

7.85

#155B5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#155B5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155B5A

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155B5A	#FFFFFF	#000000	##FFFFFF
##155B5A	1.00	7.85	2.68	7.85
#FFFFFF	7.85	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#55565A

Deuteranopia (green-blind)

#4B4F5B

Tritanopia (blue-blind)

#005E5B

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #155b5a;
/* rgb */ color: rgb(21, 91, 90);
/* oklch */ color: oklch(43.0% 0.066 193.5);

Tailwind

colors: {
  custom: {
    50: '#608a88',
    500: '#155b5a',
    950: '#000000',
  },
}

SCSS

$custom: #155b5a;
$custom-light: #608a88;
$custom-dark: #000000;

JSON

{
  "hex": "#155b5a",
  "rgb": {
    "r": 21,
    "g": 91,
    "b": 90
  },
  "hsl": {
    "h": 179.143,
    "s": 62.5,
    "l": 21.961
  },
  "oklch": {
    "l": 0.42979,
    "c": 0.06616,
    "h": 193.5
  },
  "luminance": 0.0838
}

Semantic roles & 50–950 ramp

primary

#155B5A

secondary

#92393B

accent

#4245E6

background

#F6F8F8

surface

#EBF0EF

border

#C6CBCA

text

#050B0B

muted

#7A7C7C

Preview Lab

Preview with #155B5A

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

Preview Lab → · Contrast checker → · Palette generator →