#155B7F#155B7F

#155B7F is a dark, moderate cyan. Relative luminance 0.092; OKLCH L 44.7% C 0.088 H 236.9°. Best body text is #FFFFFF at 7.41:1 contrast (WCAG AA passes).

Color values

HEX	#155B7F
RGB	rgb(21, 91, 127)
HSL	hsl(200, 72%, 29%)
HSV	hsv(200, 83%, 50%)
CMYK	cmyk(83.5%, 28.3%, 0%, 50.2%)
CIE-LAB	lab(36.32, -7.48, -26.14)
CIE-LCH	lch(36.32, 27.19, 254.03°)
OKLab	oklab(44.74% -0.0482 -0.0739)
OKLCH	oklch(44.74% 0.088 236.9)
XYZ	xyz(7.8796, 9.1729, 21.4298)
Luminance	0.0917 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155B7F #7F3915

analogous

#157F6E #155B7F #15267F

triadic

#155B7F #7F155B #5B7F15

tetradic

#155B7F #6E157F #7F3915 #267F15

square

#155B7F #6E157F #7F3915 #267F15

split-complementary

#155B7F #7F1526 #7F6E15

monochromatic

#04131A #0C354A #155B7F #1E81B4 #31A3DD

Accessibility & contrast

On white

7.41

#155B7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#155B7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155B7F

7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155B7F	#FFFFFF	#000000	##FFFFFF
##155B7F	1.00	7.41	2.83	7.41
#FFFFFF	7.41	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A5B81

Deuteranopia (green-blind)

#3B517E

Tritanopia (blue-blind)

#006467

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #155b7f;
/* rgb */ color: rgb(21, 91, 127);
/* oklch */ color: oklch(44.7% 0.088 236.9);

Tailwind

colors: {
  custom: {
    50: '#6689a4',
    500: '#155b7f',
    950: '#000000',
  },
}

SCSS

$custom: #155b7f;
$custom-light: #6689a4;
$custom-dark: #000000;

JSON

{
  "hex": "#155b7f",
  "rgb": {
    "r": 21,
    "g": 91,
    "b": 127
  },
  "hsl": {
    "h": 200.377,
    "s": 71.622,
    "l": 29.02
  },
  "oklch": {
    "l": 0.44743,
    "c": 0.08825,
    "h": 236.9
  },
  "luminance": 0.09174
}

Semantic roles & 50–950 ramp

primary

#155B7F

secondary

#B4653C

accent

#7739EE

background

#F6F8FA

surface

#EBF0F4

border

#C6CBCE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #155B7F

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

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