#155B75#155B75

#155B75 is a dark, moderate cyan. Relative luminance 0.089; OKLCH L 44.2% C 0.078 H 228.2°. Best body text is #FFFFFF at 7.54:1 contrast (WCAG AA passes).

Color values

HEX	#155B75
RGB	rgb(21, 91, 117)
HSL	hsl(196, 70%, 27%)
HSV	hsv(196, 82%, 46%)
CMYK	cmyk(82.1%, 22.2%, 0%, 54.1%)
CIE-LAB	lab(35.84, -11.30, -20.72)
CIE-LCH	lch(35.84, 23.61, 241.40°)
OKLab	oklab(44.21% -0.052 -0.0582)
OKLCH	oklch(44.21% 0.078 228.2)
XYZ	xyz(7.2599, 8.9251, 18.1663)
Luminance	0.0893 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155B75 #752F15

analogous

#15755F #155B75 #152B75

triadic

#155B75 #75155B #5B7515

tetradic

#155B75 #5F1575 #752F15 #2B7515

square

#155B75 #5F1575 #752F15 #2B7515

split-complementary

#155B75 #75152B #755F15

monochromatic

#05141A #0C3341 #155B75 #1E83A9 #2BAAD9

Accessibility & contrast

On white

7.54

#155B75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#155B75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155B75

7.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155B75	#FFFFFF	#000000	##FFFFFF
##155B75	1.00	7.54	2.79	7.54
#FFFFFF	7.54	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D5976

Deuteranopia (green-blind)

#415075

Tritanopia (blue-blind)

#006264

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #155b75;
/* rgb */ color: rgb(21, 91, 117);
/* oklch */ color: oklch(44.2% 0.078 228.2);

Tailwind

colors: {
  custom: {
    50: '#64899d',
    500: '#155b75',
    950: '#000000',
  },
}

SCSS

$custom: #155b75;
$custom-light: #64899d;
$custom-dark: #000000;

JSON

{
  "hex": "#155b75",
  "rgb": {
    "r": 21,
    "g": 91,
    "b": 117
  },
  "hsl": {
    "h": 196.25,
    "s": 69.565,
    "l": 27.059
  },
  "oklch": {
    "l": 0.44207,
    "c": 0.07812,
    "h": 228.2
  },
  "luminance": 0.08926
}

Semantic roles & 50–950 ramp

primary

#155B75

secondary

#AB593B

accent

#6B3BEC

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#060B0E

muted

#7A7C7E

Preview Lab

Preview with #155B75

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

Preview Lab → · Contrast checker → · Palette generator →