#155A73#155A73

#155A73 is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 43.8% C 0.077 H 227.5°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#155A73
RGB	rgb(21, 90, 115)
HSL	hsl(196, 69%, 27%)
HSV	hsv(196, 82%, 45%)
CMYK	cmyk(81.7%, 21.7%, 0%, 54.9%)
CIE-LAB	lab(35.42, -11.46, -20.14)
CIE-LCH	lch(35.42, 23.17, 240.36°)
OKLab	oklab(43.84% -0.0518 -0.0566)
OKLCH	oklch(43.84% 0.077 227.5)
XYZ	xyz(7.0587, 8.7087, 17.5253)
Luminance	0.0871 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155A73 #732E15

analogous

#15735D #155A73 #152B73

triadic

#155A73 #73155A #5A7315

tetradic

#155A73 #5D1573 #732E15 #2B7315

square

#155A73 #5D1573 #732E15 #2B7315

split-complementary

#155A73 #73152B #735D15

monochromatic

#05141A #0C323F #155A73 #1E83A7 #2AAAD8

Accessibility & contrast

On white

7.66

#155A73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#155A73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155A73

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155A73	#FFFFFF	#000000	##FFFFFF
##155A73	1.00	7.66	2.74	7.66
#FFFFFF	7.66	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D5874

Deuteranopia (green-blind)

#404F73

Tritanopia (blue-blind)

#006162

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #155a73;
/* rgb */ color: rgb(21, 90, 115);
/* oklch */ color: oklch(43.8% 0.077 227.5);

Tailwind

colors: {
  custom: {
    50: '#63889b',
    500: '#155a73',
    950: '#000000',
  },
}

SCSS

$custom: #155a73;
$custom-light: #63889b;
$custom-dark: #000000;

JSON

{
  "hex": "#155a73",
  "rgb": {
    "r": 21,
    "g": 90,
    "b": 115
  },
  "hsl": {
    "h": 195.957,
    "s": 69.118,
    "l": 26.667
  },
  "oklch": {
    "l": 0.43839,
    "c": 0.07672,
    "h": 227.5
  },
  "luminance": 0.0871
}

Semantic roles & 50–950 ramp

primary

#155A73

secondary

#A9583B

accent

#6B3CEC

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0E

muted

#7A7C7E

Preview Lab

Preview with #155A73

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

Preview Lab → · Contrast checker → · Palette generator →