#155D4B#155D4B

#155D4B is a dark, moderate teal. Relative luminance 0.085; OKLCH L 43.0% C 0.075 H 172.0°. Best body text is #FFFFFF at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#155D4B
RGB	rgb(21, 93, 75)
HSL	hsl(165, 63%, 22%)
HSV	hsv(165, 77%, 36%)
CMYK	cmyk(77.4%, 0%, 19.4%, 63.5%)
CIE-LAB	lab(34.99, -26.49, 4.13)
CIE-LCH	lch(34.99, 26.81, 171.13°)
OKLab	oklab(43.02% -0.0744 0.0105)
OKLCH	oklch(43.02% 0.075 172)
XYZ	xyz(5.4930, 8.4955, 8.0055)
Luminance	0.0850 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155D4B #5D1527

analogous

#155D27 #155D4B #154B5D

triadic

#155D4B #4B155D #5D4B15

tetradic

#155D4B #27155D #5D1527 #4B5D15

square

#155D4B #27155D #5D1527 #4B5D15

split-complementary

#155D4B #5D154B #5D2715

monochromatic

#061914 #0A2B23 #155D4B #208F73 #2CC19C

Accessibility & contrast

On white

7.78

#155D4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#155D4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155D4B

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155D4B	#FFFFFF	#000000	##FFFFFF
##155D4B	1.00	7.78	2.70	7.78
#FFFFFF	7.78	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A564A

Deuteranopia (green-blind)

#504F4C

Tritanopia (blue-blind)

#005E58

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #155d4b;
/* rgb */ color: rgb(21, 93, 75);
/* oklch */ color: oklch(43.0% 0.075 172.0);

Tailwind

colors: {
  custom: {
    50: '#5f8b7d',
    500: '#155d4b',
    950: '#000000',
  },
}

SCSS

$custom: #155d4b;
$custom-light: #5f8b7d;
$custom-dark: #000000;

JSON

{
  "hex": "#155d4b",
  "rgb": {
    "r": 21,
    "g": 93,
    "b": 75
  },
  "hsl": {
    "h": 165,
    "s": 63.158,
    "l": 22.353
  },
  "oklch": {
    "l": 0.43017,
    "c": 0.07517,
    "h": 172
  },
  "luminance": 0.08496
}

Semantic roles & 50–950 ramp

primary

#155D4B

secondary

#943950

accent

#426BE6

background

#F5F8F7

surface

#EAF0EE

border

#C6CBC9

text

#050C09

muted

#797D7B

Preview Lab

Preview with #155D4B

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

Preview Lab → · Contrast checker → · Palette generator →