#155F51#155F51

#155F51 is a dark, moderate teal. Relative luminance 0.089; OKLCH L 43.8% C 0.074 H 176.9°. Best body text is #FFFFFF at 7.53:1 contrast (WCAG AA passes).

Color values

HEX	#155F51
RGB	rgb(21, 95, 81)
HSL	hsl(169, 64%, 23%)
HSV	hsv(169, 78%, 37%)
CMYK	cmyk(77.9%, 0%, 14.7%, 62.7%)
CIE-LAB	lab(35.86, -25.73, 1.66)
CIE-LCH	lch(35.86, 25.79, 176.30°)
OKLab	oklab(43.78% -0.0735 0.004)
OKLCH	oklch(43.78% 0.074 176.9)
XYZ	xyz(5.8859, 8.9372, 9.1978)
Luminance	0.0894 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155F51 #5F1523

analogous

#155F2C #155F51 #15485F

triadic

#155F51 #51155F #5F5115

tetradic

#155F51 #2C155F #5F1523 #485F15

square

#155F51 #2C155F #5F1523 #485F15

split-complementary

#155F51 #5F1548 #5F2C15

monochromatic

#061915 #0A2D26 #155F51 #20917C #2BC3A6

Accessibility & contrast

On white

7.53

#155F51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#155F51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155F51

7.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155F51	#FFFFFF	#000000	##FFFFFF
##155F51	1.00	7.53	2.79	7.53
#FFFFFF	7.53	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5950

Deuteranopia (green-blind)

#515152

Tritanopia (blue-blind)

#00605B

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #155f51;
/* rgb */ color: rgb(21, 95, 81);
/* oklch */ color: oklch(43.8% 0.074 176.9);

Tailwind

colors: {
  custom: {
    50: '#608d81',
    500: '#155f51',
    950: '#000000',
  },
}

SCSS

$custom: #155f51;
$custom-light: #608d81;
$custom-dark: #000000;

JSON

{
  "hex": "#155f51",
  "rgb": {
    "r": 21,
    "g": 95,
    "b": 81
  },
  "hsl": {
    "h": 168.649,
    "s": 63.793,
    "l": 22.745
  },
  "oklch": {
    "l": 0.43783,
    "c": 0.07363,
    "h": 176.9
  },
  "luminance": 0.08938
}

Semantic roles & 50–950 ramp

primary

#155F51

secondary

#963A4B

accent

#4160E7

background

#F6F8F7

surface

#EBF0EE

border

#C6CBC9

text

#050C0A

muted

#7A7D7C

Preview Lab

Preview with #155F51

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

Preview Lab → · Contrast checker → · Palette generator →