#155B40#155B40

#155B40 is a dark, moderate teal. Relative luminance 0.080; OKLCH L 42.1% C 0.082 H 162.7°. Best body text is #FFFFFF at 8.07:1 contrast (WCAG AA passes).

Color values

HEX	#155B40
RGB	rgb(21, 91, 64)
HSL	hsl(157, 63%, 22%)
HSV	hsv(157, 77%, 36%)
CMYK	cmyk(76.9%, 0%, 29.7%, 64.3%)
CIE-LAB	lab(34.01, -28.51, 9.55)
CIE-LCH	lch(34.01, 30.06, 161.48°)
OKLab	oklab(42.11% -0.0781 0.0243)
OKLCH	oklch(42.11% 0.082 162.7)
XYZ	xyz(4.9752, 8.0112, 6.1336)
Luminance	0.0801 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155B40 #5B1530

analogous

#155B1D #155B40 #15535B

triadic

#155B40 #40155B #5B4015

tetradic

#155B40 #1D155B #5B1530 #535B15

square

#155B40 #1D155B #5B1530 #535B15

split-complementary

#155B40 #5B1553 #5B1D15

monochromatic

#061911 #0A291D #155B40 #208D63 #2CBE86

Accessibility & contrast

On white

8.07

#155B40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#155B40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155B40

8.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155B40	#FFFFFF	#000000	##FFFFFF
##155B40	1.00	8.07	2.60	8.07
#FFFFFF	8.07	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#59543E

Deuteranopia (green-blind)

#504D42

Tritanopia (blue-blind)

#005B54

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #155b40;
/* rgb */ color: rgb(21, 91, 64);
/* oklch */ color: oklch(42.1% 0.082 162.7);

Tailwind

colors: {
  custom: {
    50: '#5e8a74',
    500: '#155b40',
    950: '#000000',
  },
}

SCSS

$custom: #155b40;
$custom-light: #5e8a74;
$custom-dark: #000000;

JSON

{
  "hex": "#155b40",
  "rgb": {
    "r": 21,
    "g": 91,
    "b": 64
  },
  "hsl": {
    "h": 156.857,
    "s": 62.5,
    "l": 21.961
  },
  "oklch": {
    "l": 0.42114,
    "c": 0.08177,
    "h": 162.7
  },
  "luminance": 0.08012
}

Semantic roles & 50–950 ramp

primary

#155B40

secondary

#92395C

accent

#4281E6

background

#F5F8F7

surface

#EAF0ED

border

#C6CBC8

text

#050C08

muted

#797D7B

Preview Lab

Preview with #155B40

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

Preview Lab → · Contrast checker → · Palette generator →