#155F73#155F73

#155F73 is a mid, moderate cyan. Relative luminance 0.096; OKLCH L 45.2% C 0.075 H 220.8°. Best body text is #FFFFFF at 7.20:1 contrast (WCAG AA passes).

Color values

HEX	#155F73
RGB	rgb(21, 95, 115)
HSL	hsl(193, 69%, 27%)
HSV	hsv(193, 82%, 45%)
CMYK	cmyk(81.7%, 17.4%, 0%, 54.9%)
CIE-LAB	lab(37.08, -14.38, -17.58)
CIE-LCH	lch(37.08, 22.71, 230.71°)
OKLab	oklab(45.17% -0.0571 -0.0492)
OKLCH	oklch(45.17% 0.075 220.8)
XYZ	xyz(7.4947, 9.5807, 17.6706)
Luminance	0.0958 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155F73 #732915

analogous

#157358 #155F73 #153073

triadic

#155F73 #73155F #5F7315

tetradic

#155F73 #581573 #732915 #307315

square

#155F73 #581573 #732915 #307315

split-complementary

#155F73 #731530 #735815

monochromatic

#05151A #0C343F #155F73 #1E8AA7 #2AB3D8

Accessibility & contrast

On white

7.20

#155F73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#155F73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155F73

7.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155F73	#FFFFFF	#000000	##FFFFFF
##155F73	1.00	7.20	2.92	7.20
#FFFFFF	7.20	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#535C74

Deuteranopia (green-blind)

#475373

Tritanopia (blue-blind)

#006565

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #155f73;
/* rgb */ color: rgb(21, 95, 115);
/* oklch */ color: oklch(45.2% 0.075 220.8);

Tailwind

colors: {
  custom: {
    50: '#648c9b',
    500: '#155f73',
    950: '#000000',
  },
}

SCSS

$custom: #155f73;
$custom-light: #648c9b;
$custom-dark: #000000;

JSON

{
  "hex": "#155f73",
  "rgb": {
    "r": 21,
    "g": 95,
    "b": 115
  },
  "hsl": {
    "h": 192.766,
    "s": 69.118,
    "l": 26.667
  },
  "oklch": {
    "l": 0.45172,
    "c": 0.07535,
    "h": 220.8
  },
  "luminance": 0.09582
}

Semantic roles & 50–950 ramp

primary

#155F73

secondary

#A9523B

accent

#613CEC

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#060C0E

muted

#7A7D7E

Preview Lab

Preview with #155F73

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

Preview Lab → · Contrast checker → · Palette generator →