#155B57#155B57

#155B57 is a dark, moderate teal. Relative luminance 0.083; OKLCH L 42.9% C 0.067 H 189.3°. Best body text is #FFFFFF at 7.88:1 contrast (WCAG AA passes).

Color values

HEX	#155B57
RGB	rgb(21, 91, 87)
HSL	hsl(177, 63%, 22%)
HSV	hsv(177, 77%, 36%)
CMYK	cmyk(76.9%, 0%, 4.4%, 64.3%)
CIE-LAB	lab(34.66, -21.85, -3.84)
CIE-LCH	lch(34.66, 22.19, 189.97°)
OKLab	oklab(42.86% -0.0658 -0.0108)
OKLCH	oklch(42.86% 0.067 189.3)
XYZ	xyz(5.7698, 8.3290, 10.3186)
Luminance	0.0833 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155B57 #5B1519

analogous

#155B34 #155B57 #153C5B

triadic

#155B57 #57155B #5B5715

tetradic

#155B57 #34155B #5B1519 #3C5B15

square

#155B57 #34155B #5B1519 #3C5B15

split-complementary

#155B57 #5B153C #5B3415

monochromatic

#061918 #0A2927 #155B57 #208D87 #2CBEB6

Accessibility & contrast

On white

7.88

#155B57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#155B57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155B57

7.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155B57	#FFFFFF	#000000	##FFFFFF
##155B57	1.00	7.88	2.67	7.88
#FFFFFF	7.88	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#555657

Deuteranopia (green-blind)

#4B4E58

Tritanopia (blue-blind)

#005E5A

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #155b57;
/* rgb */ color: rgb(21, 91, 87);
/* oklch */ color: oklch(42.9% 0.067 189.3);

Tailwind

colors: {
  custom: {
    50: '#5f8a86',
    500: '#155b57',
    950: '#000000',
  },
}

SCSS

$custom: #155b57;
$custom-light: #5f8a86;
$custom-dark: #000000;

JSON

{
  "hex": "#155b57",
  "rgb": {
    "r": 21,
    "g": 91,
    "b": 87
  },
  "hsl": {
    "h": 176.571,
    "s": 62.5,
    "l": 21.961
  },
  "oklch": {
    "l": 0.42863,
    "c": 0.06672,
    "h": 189.3
  },
  "luminance": 0.0833
}

Semantic roles & 50–950 ramp

primary

#155B57

secondary

#92393E

accent

#424CE6

background

#F5F8F8

surface

#EAF0EF

border

#C6CBCA

text

#050B0B

muted

#797C7C

Preview Lab

Preview with #155B57

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

Preview Lab → · Contrast checker → · Palette generator →