#155F5B#155F5B

#155F5B is a dark, moderate teal. Relative luminance 0.091; OKLCH L 44.1% C 0.069 H 189.5°. Best body text is #FFFFFF at 7.45:1 contrast (WCAG AA passes).

Color values

HEX	#155F5B
RGB	rgb(21, 95, 91)
HSL	hsl(177, 64%, 23%)
HSV	hsv(177, 78%, 37%)
CMYK	cmyk(77.9%, 0%, 4.2%, 62.7%)
CIE-LAB	lab(36.17, -22.65, -4.09)
CIE-LCH	lch(36.17, 23.02, 190.23°)
OKLab	oklab(44.14% -0.0683 -0.0115)
OKLCH	oklch(44.14% 0.069 189.5)
XYZ	xyz(6.2889, 9.0984, 11.3202)
Luminance	0.0910 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155F5B #5F1519

analogous

#155F36 #155F5B #153E5F

triadic

#155F5B #5B155F #5F5B15

tetradic

#155F5B #36155F #5F1519 #3E5F15

square

#155F5B #36155F #5F1519 #3E5F15

split-complementary

#155F5B #5F153E #5F3615

monochromatic

#061918 #0A2D2B #155F5B #20918B #2BC3BB

Accessibility & contrast

On white

7.45

#155F5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#155F5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155F5B

7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155F5B	#FFFFFF	#000000	##FFFFFF
##155F5B	1.00	7.45	2.82	7.45
#FFFFFF	7.45	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595A5B

Deuteranopia (green-blind)

#4F525C

Tritanopia (blue-blind)

#00625E

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #155f5b;
/* rgb */ color: rgb(21, 95, 91);
/* oklch */ color: oklch(44.1% 0.069 189.5);

Tailwind

colors: {
  custom: {
    50: '#608d89',
    500: '#155f5b',
    950: '#000000',
  },
}

SCSS

$custom: #155f5b;
$custom-light: #608d89;
$custom-dark: #000000;

JSON

{
  "hex": "#155f5b",
  "rgb": {
    "r": 21,
    "g": 95,
    "b": 91
  },
  "hsl": {
    "h": 176.757,
    "s": 63.793,
    "l": 22.745
  },
  "oklch": {
    "l": 0.44139,
    "c": 0.06928,
    "h": 189.5
  },
  "luminance": 0.09099
}

Semantic roles & 50–950 ramp

primary

#155F5B

secondary

#963A3F

accent

#414AE7

background

#F6F8F8

surface

#EBF0F0

border

#C6CBCB

text

#050C0B

muted

#7A7D7C

Preview Lab

Preview with #155F5B

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

Preview Lab → · Contrast checker → · Palette generator →