#155D5B#155D5B

#155D5B is a dark, moderate teal. Relative luminance 0.087; OKLCH L 43.6% C 0.068 H 192.2°. Best body text is #FFFFFF at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#155D5B
RGB	rgb(21, 93, 91)
HSL	hsl(178, 63%, 22%)
HSV	hsv(178, 77%, 36%)
CMYK	cmyk(77.4%, 0%, 2.2%, 63.5%)
CIE-LAB	lab(35.48, -21.61, -5.11)
CIE-LCH	lch(35.48, 22.20, 193.31°)
OKLab	oklab(43.58% -0.0661 -0.0142)
OKLCH	oklch(43.58% 0.068 192.2)
XYZ	xyz(6.1111, 8.7427, 11.2609)
Luminance	0.0874 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155D5B #5D1517

analogous

#155D37 #155D5B #153B5D

triadic

#155D5B #5B155D #5D5B15

tetradic

#155D5B #37155D #5D1517 #3B5D15

square

#155D5B #37155D #5D1517 #3B5D15

split-complementary

#155D5B #5D153B #5D3715

monochromatic

#061918 #0A2B2A #155D5B #208F8C #2CC1BD

Accessibility & contrast

On white

7.64

#155D5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#155D5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155D5B

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155D5B	#FFFFFF	#000000	##FFFFFF
##155D5B	1.00	7.64	2.75	7.64
#FFFFFF	7.64	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#57585B

Deuteranopia (green-blind)

#4C505C

Tritanopia (blue-blind)

#00605C

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #155d5b;
/* rgb */ color: rgb(21, 93, 91);
/* oklch */ color: oklch(43.6% 0.068 192.2);

Tailwind

colors: {
  custom: {
    50: '#608b89',
    500: '#155d5b',
    950: '#000000',
  },
}

SCSS

$custom: #155d5b;
$custom-light: #608b89;
$custom-dark: #000000;

JSON

{
  "hex": "#155d5b",
  "rgb": {
    "r": 21,
    "g": 93,
    "b": 91
  },
  "hsl": {
    "h": 178.333,
    "s": 63.158,
    "l": 22.353
  },
  "oklch": {
    "l": 0.43579,
    "c": 0.0676,
    "h": 192.2
  },
  "luminance": 0.08743
}

Semantic roles & 50–950 ramp

primary

#155D5B

secondary

#94393C

accent

#4246E6

background

#F6F8F8

surface

#EBF0F0

border

#C6CBCB

text

#050C0B

muted

#7A7D7C

Preview Lab

Preview with #155D5B

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

Preview Lab → · Contrast checker → · Palette generator →