#155A57#155A57

#155A57 is a dark, moderate teal. Relative luminance 0.082; OKLCH L 42.6% C 0.066 H 190.7°. Best body text is #FFFFFF at 7.98:1 contrast (WCAG AA passes).

Color values

HEX	#155A57
RGB	rgb(21, 90, 87)
HSL	hsl(177, 62%, 22%)
HSV	hsv(177, 77%, 35%)
CMYK	cmyk(76.7%, 0%, 3.3%, 64.7%)
CIE-LAB	lab(34.31, -21.33, -4.35)
CIE-LCH	lch(34.31, 21.77, 191.54°)
OKLab	oklab(42.58% -0.0647 -0.0122)
OKLCH	oklch(42.58% 0.066 190.7)
XYZ	xyz(5.6849, 8.1592, 10.2902)
Luminance	0.0816 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155A57 #5A1518

analogous

#155A35 #155A57 #153B5A

triadic

#155A57 #57155A #5A5715

tetradic

#155A57 #35155A #5A1518 #3B5A15

square

#155A57 #35155A #5A1518 #3B5A15

split-complementary

#155A57 #5A153B #5A3515

monochromatic

#061918 #092827 #155A57 #218C87 #2CBDB7

Accessibility & contrast

On white

7.98

#155A57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#155A57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155A57

7.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155A57	#FFFFFF	#000000	##FFFFFF
##155A57	1.00	7.98	2.63	7.98
#FFFFFF	7.98	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#545557

Deuteranopia (green-blind)

#4A4E58

Tritanopia (blue-blind)

#005D59

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #155a57;
/* rgb */ color: rgb(21, 90, 87);
/* oklch */ color: oklch(42.6% 0.066 190.7);

Tailwind

colors: {
  custom: {
    50: '#5f8986',
    500: '#155a57',
    950: '#000000',
  },
}

SCSS

$custom: #155a57;
$custom-light: #5f8986;
$custom-dark: #000000;

JSON

{
  "hex": "#155a57",
  "rgb": {
    "r": 21,
    "g": 90,
    "b": 87
  },
  "hsl": {
    "h": 177.391,
    "s": 62.162,
    "l": 21.765
  },
  "oklch": {
    "l": 0.42582,
    "c": 0.06583,
    "h": 190.7
  },
  "luminance": 0.0816
}

Semantic roles & 50–950 ramp

primary

#155A57

secondary

#92393D

accent

#434AE5

background

#F5F8F8

surface

#EAF0EF

border

#C6CBCA

text

#050B0B

muted

#797C7C

Preview Lab

Preview with #155A57

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

Preview Lab → · Contrast checker → · Palette generator →