#155B74#155B74

#155B74 is a dark, moderate cyan. Relative luminance 0.089; OKLCH L 44.2% C 0.077 H 227.2°. Best body text is #FFFFFF at 7.55:1 contrast (WCAG AA passes).

Color values

HEX	#155B74
RGB	rgb(21, 91, 116)
HSL	hsl(196, 69%, 27%)
HSV	hsv(196, 82%, 45%)
CMYK	cmyk(81.9%, 21.6%, 0%, 54.5%)
CIE-LAB	lab(35.79, -11.68, -20.18)
CIE-LCH	lch(35.79, 23.31, 239.94°)
OKLab	oklab(44.16% -0.0524 -0.0567)
OKLCH	oklch(44.16% 0.077 227.2)
XYZ	xyz(7.2014, 8.9017, 17.8583)
Luminance	0.0890 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155B74 #742E15

analogous

#15745E #155B74 #152C74

triadic

#155B74 #74155B #5B7415

tetradic

#155B74 #5E1574 #742E15 #2C7415

square

#155B74 #5E1574 #742E15 #2C7415

split-complementary

#155B74 #74152C #745E15

monochromatic

#05141A #0C3240 #155B74 #1E84A8 #2BABD9

Accessibility & contrast

On white

7.55

#155B74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#155B74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155B74

7.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155B74	#FFFFFF	#000000	##FFFFFF
##155B74	1.00	7.55	2.78	7.55
#FFFFFF	7.55	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E5975

Deuteranopia (green-blind)

#415074

Tritanopia (blue-blind)

#006263

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #155b74;
/* rgb */ color: rgb(21, 91, 116);
/* oklch */ color: oklch(44.2% 0.077 227.2);

Tailwind

colors: {
  custom: {
    50: '#64899c',
    500: '#155b74',
    950: '#000000',
  },
}

SCSS

$custom: #155b74;
$custom-light: #64899c;
$custom-dark: #000000;

JSON

{
  "hex": "#155b74",
  "rgb": {
    "r": 21,
    "g": 91,
    "b": 116
  },
  "hsl": {
    "h": 195.789,
    "s": 69.343,
    "l": 26.863
  },
  "oklch": {
    "l": 0.44156,
    "c": 0.07722,
    "h": 227.2
  },
  "luminance": 0.08903
}

Semantic roles & 50–950 ramp

primary

#155B74

secondary

#AA583B

accent

#6A3CEC

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#060B0E

muted

#7A7C7E

Preview Lab

Preview with #155B74

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

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