#155B53#155B53

#155B53 is a dark, moderate teal. Relative luminance 0.083; OKLCH L 42.7% C 0.068 H 183.8°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#155B53
RGB	rgb(21, 91, 83)
HSL	hsl(173, 63%, 22%)
HSV	hsv(173, 77%, 36%)
CMYK	cmyk(76.9%, 0%, 8.8%, 64.3%)
CIE-LAB	lab(34.53, -23.11, -1.53)
CIE-LCH	lch(34.53, 23.17, 183.78°)
OKLab	oklab(42.72% -0.0679 -0.0045)
OKLCH	oklch(42.72% 0.068 183.8)
XYZ	xyz(5.6109, 8.2655, 9.4816)
Luminance	0.0827 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155B53 #5B151D

analogous

#155B30 #155B53 #15405B

triadic

#155B53 #53155B #5B5315

tetradic

#155B53 #30155B #5B151D #405B15

square

#155B53 #30155B #5B151D #405B15

split-complementary

#155B53 #5B1540 #5B3015

monochromatic

#061917 #0A2926 #155B53 #208D80 #2CBEAE

Accessibility & contrast

On white

7.91

#155B53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#155B53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155B53

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155B53	#FFFFFF	#000000	##FFFFFF
##155B53	1.00	7.91	2.65	7.91
#FFFFFF	7.91	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#565553

Deuteranopia (green-blind)

#4C4E54

Tritanopia (blue-blind)

#005D58

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #155b53;
/* rgb */ color: rgb(21, 91, 83);
/* oklch */ color: oklch(42.7% 0.068 183.8);

Tailwind

colors: {
  custom: {
    50: '#5f8a83',
    500: '#155b53',
    950: '#000000',
  },
}

SCSS

$custom: #155b53;
$custom-light: #5f8a83;
$custom-dark: #000000;

JSON

{
  "hex": "#155b53",
  "rgb": {
    "r": 21,
    "g": 91,
    "b": 83
  },
  "hsl": {
    "h": 173.143,
    "s": 62.5,
    "l": 21.961
  },
  "oklch": {
    "l": 0.42715,
    "c": 0.06805,
    "h": 183.8
  },
  "luminance": 0.08266
}

Semantic roles & 50–950 ramp

primary

#155B53

secondary

#923944

accent

#4255E6

background

#F5F8F8

surface

#EAF0EF

border

#C6CBCA

text

#050B0A

muted

#797C7C

Preview Lab

Preview with #155B53

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

Preview Lab → · Contrast checker → · Palette generator →