#155F4E#155F4E

#155F4E is a dark, moderate teal. Relative luminance 0.089; OKLCH L 43.7% C 0.076 H 173.5°. Best body text is #FFFFFF at 7.56:1 contrast (WCAG AA passes).

Color values

HEX	#155F4E
RGB	rgb(21, 95, 78)
HSL	hsl(166, 64%, 23%)
HSV	hsv(166, 78%, 37%)
CMYK	cmyk(77.9%, 0%, 17.9%, 62.7%)
CIE-LAB	lab(35.78, -26.60, 3.40)
CIE-LCH	lch(35.78, 26.82, 172.72°)
OKLab	oklab(43.69% -0.0751 0.0086)
OKLCH	oklch(43.69% 0.076 173.5)
XYZ	xyz(5.7759, 8.8932, 8.6184)
Luminance	0.0889 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155F4E #5F1526

analogous

#155F29 #155F4E #154B5F

triadic

#155F4E #4E155F #5F4E15

tetradic

#155F4E #29155F #5F1526 #4B5F15

square

#155F4E #29155F #5F1526 #4B5F15

split-complementary

#155F4E #5F154B #5F2915

monochromatic

#061915 #0A2D25 #155F4E #209177 #2BC3A0

Accessibility & contrast

On white

7.56

#155F4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#155F4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155F4E

7.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155F4E	#FFFFFF	#000000	##FFFFFF
##155F4E	1.00	7.56	2.78	7.56
#FFFFFF	7.56	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C584D

Deuteranopia (green-blind)

#52514F

Tritanopia (blue-blind)

#00605A

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #155f4e;
/* rgb */ color: rgb(21, 95, 78);
/* oklch */ color: oklch(43.7% 0.076 173.5);

Tailwind

colors: {
  custom: {
    50: '#5f8d7f',
    500: '#155f4e',
    950: '#000000',
  },
}

SCSS

$custom: #155f4e;
$custom-light: #5f8d7f;
$custom-dark: #000000;

JSON

{
  "hex": "#155f4e",
  "rgb": {
    "r": 21,
    "g": 95,
    "b": 78
  },
  "hsl": {
    "h": 166.216,
    "s": 63.793,
    "l": 22.745
  },
  "oklch": {
    "l": 0.43685,
    "c": 0.0756,
    "h": 173.5
  },
  "luminance": 0.08894
}

Semantic roles & 50–950 ramp

primary

#155F4E

secondary

#963A4F

accent

#4167E7

background

#F5F8F7

surface

#EAF0EE

border

#C6CBC9

text

#050C0A

muted

#797D7C

Preview Lab

Preview with #155F4E

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

Preview Lab → · Contrast checker → · Palette generator →