#155B64#155B64

#155B64 is a dark, moderate teal. Relative luminance 0.086; OKLCH L 43.4% C 0.067 H 207.8°. Best body text is #FFFFFF at 7.74:1 contrast (WCAG AA passes).

Color values

HEX	#155B64
RGB	rgb(21, 91, 100)
HSL	hsl(187, 65%, 24%)
HSV	hsv(187, 79%, 39%)
CMYK	cmyk(79%, 9%, 0%, 60.8%)
CIE-LAB	lab(35.12, -17.49, -11.27)
CIE-LCH	lch(35.12, 20.80, 212.80°)
OKLab	oklab(43.4% -0.0595 -0.0313)
OKLCH	oklch(43.4% 0.067 207.8)
XYZ	xyz(6.3496, 8.5609, 13.3719)
Luminance	0.0856 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155B64 #641E15

analogous

#156445 #155B64 #153364

triadic

#155B64 #64155B #5B6415

tetradic

#155B64 #451564 #641E15 #336415

square

#155B64 #451564 #641E15 #336415

split-complementary

#155B64 #641533 #644515

monochromatic

#051719 #0A2D31 #155B64 #208997 #2AB7C9

Accessibility & contrast

On white

7.74

#155B64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#155B64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155B64

7.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155B64	#FFFFFF	#000000	##FFFFFF
##155B64	1.00	7.74	2.71	7.74
#FFFFFF	7.74	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#525765

Deuteranopia (green-blind)

#474F64

Tritanopia (blue-blind)

#005F5E

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #155b64;
/* rgb */ color: rgb(21, 91, 100);
/* oklch */ color: oklch(43.4% 0.067 207.8);

Tailwind

colors: {
  custom: {
    50: '#618990',
    500: '#155b64',
    950: '#000000',
  },
}

SCSS

$custom: #155b64;
$custom-light: #618990;
$custom-dark: #000000;

JSON

{
  "hex": "#155b64",
  "rgb": {
    "r": 21,
    "g": 91,
    "b": 100
  },
  "hsl": {
    "h": 186.835,
    "s": 65.289,
    "l": 23.725
  },
  "oklch": {
    "l": 0.43396,
    "c": 0.06721,
    "h": 207.8
  },
  "luminance": 0.08562
}

Semantic roles & 50–950 ramp

primary

#155B64

secondary

#9B453A

accent

#5340E8

background

#F6F8F8

surface

#EBF0F0

border

#C6CBCB

text

#060B0C

muted

#7A7C7D

Preview Lab

Preview with #155B64

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

Preview Lab → · Contrast checker → · Palette generator →