#155F4B#155F4B

#155F4B is a dark, moderate teal. Relative luminance 0.089; OKLCH L 43.6% C 0.078 H 170.3°. Best body text is #FFFFFF at 7.58:1 contrast (WCAG AA passes).

Color values

HEX	#155F4B
RGB	rgb(21, 95, 75)
HSL	hsl(164, 64%, 23%)
HSV	hsv(164, 78%, 37%)
CMYK	cmyk(77.9%, 0%, 21.1%, 62.7%)
CIE-LAB	lab(35.70, -27.45, 5.14)
CIE-LCH	lch(35.70, 27.93, 169.40°)
OKLab	oklab(43.59% -0.0767 0.0131)
OKLCH	oklch(43.59% 0.078 170.3)
XYZ	xyz(5.6708, 8.8512, 8.0648)
Luminance	0.0885 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155F4B #5F1529

analogous

#155F26 #155F4B #154E5F

triadic

#155F4B #4B155F #5F4B15

tetradic

#155F4B #26155F #5F1529 #4E5F15

square

#155F4B #26155F #5F1529 #4E5F15

split-complementary

#155F4B #5F154E #5F2615

monochromatic

#061914 #0A2D23 #155F4B #209173 #2BC39A

Accessibility & contrast

On white

7.58

#155F4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#155F4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155F4B

7.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155F4B	#FFFFFF	#000000	##FFFFFF
##155F4B	1.00	7.58	2.77	7.58
#FFFFFF	7.58	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C584A

Deuteranopia (green-blind)

#52514C

Tritanopia (blue-blind)

#006059

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #155f4b;
/* rgb */ color: rgb(21, 95, 75);
/* oklch */ color: oklch(43.6% 0.078 170.3);

Tailwind

colors: {
  custom: {
    50: '#5f8d7d',
    500: '#155f4b',
    950: '#000000',
  },
}

SCSS

$custom: #155f4b;
$custom-light: #5f8d7d;
$custom-dark: #000000;

JSON

{
  "hex": "#155f4b",
  "rgb": {
    "r": 21,
    "g": 95,
    "b": 75
  },
  "hsl": {
    "h": 163.784,
    "s": 63.793,
    "l": 22.745
  },
  "oklch": {
    "l": 0.43591,
    "c": 0.07783,
    "h": 170.3
  },
  "luminance": 0.08852
}

Semantic roles & 50–950 ramp

primary

#155F4B

secondary

#963A53

accent

#416EE7

background

#F5F8F7

surface

#EAF0EE

border

#C6CBC9

text

#050C09

muted

#797D7B

Preview Lab

Preview with #155F4B

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

Preview Lab → · Contrast checker → · Palette generator →