#155C4B#155C4B

#155C4B is a dark, moderate teal. Relative luminance 0.083; OKLCH L 42.7% C 0.074 H 172.8°. Best body text is #FFFFFF at 7.88:1 contrast (WCAG AA passes).

Color values

HEX	#155C4B
RGB	rgb(21, 92, 75)
HSL	hsl(166, 63%, 22%)
HSV	hsv(166, 77%, 36%)
CMYK	cmyk(77.2%, 0%, 18.5%, 63.9%)
CIE-LAB	lab(34.64, -26.00, 3.63)
CIE-LCH	lch(34.64, 26.26, 172.05°)
OKLab	oklab(42.73% -0.0733 0.0092)
OKLCH	oklch(42.73% 0.074 172.8)
XYZ	xyz(5.4058, 8.3211, 7.9765)
Luminance	0.0832 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155C4B #5C1526

analogous

#155C28 #155C4B #154A5C

triadic

#155C4B #4B155C #5C4B15

tetradic

#155C4B #28155C #5C1526 #4A5C15

square

#155C4B #28155C #5C1526 #4A5C15

split-complementary

#155C4B #5C154A #5C2815

monochromatic

#061914 #0A2A22 #155C4B #208E74 #2CC09C

Accessibility & contrast

On white

7.88

#155C4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#155C4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155C4B

7.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155C4B	#FFFFFF	#000000	##FFFFFF
##155C4B	1.00	7.88	2.66	7.88
#FFFFFF	7.88	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#59564A

Deuteranopia (green-blind)

#4F4F4C

Tritanopia (blue-blind)

#005D57

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #155c4b;
/* rgb */ color: rgb(21, 92, 75);
/* oklch */ color: oklch(42.7% 0.074 172.8);

Tailwind

colors: {
  custom: {
    50: '#5f8b7d',
    500: '#155c4b',
    950: '#000000',
  },
}

SCSS

$custom: #155c4b;
$custom-light: #5f8b7d;
$custom-dark: #000000;

JSON

{
  "hex": "#155c4b",
  "rgb": {
    "r": 21,
    "g": 92,
    "b": 75
  },
  "hsl": {
    "h": 165.634,
    "s": 62.832,
    "l": 22.157
  },
  "oklch": {
    "l": 0.42729,
    "c": 0.07387,
    "h": 172.8
  },
  "luminance": 0.08322
}

Semantic roles & 50–950 ramp

primary

#155C4B

secondary

#93394F

accent

#4269E6

background

#F5F8F7

surface

#EAF0EE

border

#C6CBC9

text

#050C09

muted

#797D7B

Preview Lab

Preview with #155C4B

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

Preview Lab → · Contrast checker → · Palette generator →