#155B6C#155B6C

#155B6C is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 43.8% C 0.071 H 218.3°. Best body text is #FFFFFF at 7.65:1 contrast (WCAG AA passes).

Color values

HEX	#155B6C
RGB	rgb(21, 91, 108)
HSL	hsl(192, 67%, 25%)
HSV	hsv(192, 81%, 42%)
CMYK	cmyk(80.6%, 15.7%, 0%, 57.6%)
CIE-LAB	lab(35.45, -14.63, -15.76)
CIE-LCH	lch(35.45, 21.50, 227.12°)
OKLab	oklab(43.76% -0.0558 -0.044)
OKLCH	oklch(43.76% 0.071 218.3)
XYZ	xyz(6.7560, 8.7235, 15.5122)
Luminance	0.0872 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155B6C #6C2615

analogous

#156C51 #155B6C #152F6C

triadic

#155B6C #6C155B #5B6C15

tetradic

#155B6C #51156C #6C2615 #2F6C15

square

#155B6C #51156C #6C2615 #2F6C15

split-complementary

#155B6C #6C152F #6C5115

monochromatic

#05161A #0B3039 #155B6C #1F869F #29B1D2

Accessibility & contrast

On white

7.65

#155B6C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#155B6C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155B6C

7.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155B6C	#FFFFFF	#000000	##FFFFFF
##155B6C	1.00	7.65	2.74	7.65
#FFFFFF	7.65	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#50586D

Deuteranopia (green-blind)

#44506C

Tritanopia (blue-blind)

#006160

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #155b6c;
/* rgb */ color: rgb(21, 91, 108);
/* oklch */ color: oklch(43.8% 0.071 218.3);

Tailwind

colors: {
  custom: {
    50: '#628996',
    500: '#155b6c',
    950: '#000000',
  },
}

SCSS

$custom: #155b6c;
$custom-light: #628996;
$custom-dark: #000000;

JSON

{
  "hex": "#155b6c",
  "rgb": {
    "r": 21,
    "g": 91,
    "b": 108
  },
  "hsl": {
    "h": 191.724,
    "s": 67.442,
    "l": 25.294
  },
  "oklch": {
    "l": 0.43761,
    "c": 0.0711,
    "h": 218.3
  },
  "luminance": 0.08724
}

Semantic roles & 50–950 ramp

primary

#155B6C

secondary

#A34F3A

accent

#5F3DEA

background

#F6F8F9

surface

#EBF0F1

border

#C6CBCB

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #155B6C

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

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