#155D40#155D40

#155D40 is a dark, moderate teal. Relative luminance 0.084; OKLCH L 42.7% C 0.085 H 161.6°. Best body text is #FFFFFF at 7.86:1 contrast (WCAG AA passes).

Color values

HEX	#155D40
RGB	rgb(21, 93, 64)
HSL	hsl(156, 63%, 22%)
HSV	hsv(156, 77%, 36%)
CMYK	cmyk(77.4%, 0%, 31.2%, 63.5%)
CIE-LAB	lab(34.72, -29.42, 10.53)
CIE-LCH	lch(34.72, 31.25, 160.30°)
OKLab	oklab(42.7% -0.0804 0.0268)
OKLCH	oklch(42.7% 0.085 161.6)
XYZ	xyz(5.1485, 8.3577, 6.1914)
Luminance	0.0836 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155D40 #5D1532

analogous

#155D1C #155D40 #15565D

triadic

#155D40 #40155D #5D4015

tetradic

#155D40 #1C155D #5D1532 #565D15

square

#155D40 #1C155D #5D1532 #565D15

split-complementary

#155D40 #5D1556 #5D1C15

monochromatic

#061911 #0A2B1E #155D40 #208F62 #2CC185

Accessibility & contrast

On white

7.86

#155D40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#155D40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155D40

7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155D40	#FFFFFF	#000000	##FFFFFF
##155D40	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)

#5C563E

Deuteranopia (green-blind)

#524F42

Tritanopia (blue-blind)

#005D55

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #155d40;
/* rgb */ color: rgb(21, 93, 64);
/* oklch */ color: oklch(42.7% 0.085 161.6);

Tailwind

colors: {
  custom: {
    50: '#5e8b75',
    500: '#155d40',
    950: '#000000',
  },
}

SCSS

$custom: #155d40;
$custom-light: #5e8b75;
$custom-dark: #000000;

JSON

{
  "hex": "#155d40",
  "rgb": {
    "r": 21,
    "g": 93,
    "b": 64
  },
  "hsl": {
    "h": 155.833,
    "s": 63.158,
    "l": 22.353
  },
  "oklch": {
    "l": 0.42698,
    "c": 0.0847,
    "h": 161.6
  },
  "luminance": 0.08358
}

Semantic roles & 50–950 ramp

primary

#155D40

secondary

#94395E

accent

#4284E6

background

#F5F8F7

surface

#EAF0ED

border

#C6CBC8

text

#050C08

muted

#797D7B

Preview Lab

Preview with #155D40

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

Preview Lab → · Contrast checker → · Palette generator →