#155C75#155C75

#155C75 is a dark, moderate cyan. Relative luminance 0.091; OKLCH L 44.5% C 0.078 H 226.9°. Best body text is #FFFFFF at 7.45:1 contrast (WCAG AA passes).

Color values

HEX	#155C75
RGB	rgb(21, 92, 117)
HSL	hsl(196, 70%, 27%)
HSV	hsv(196, 82%, 46%)
CMYK	cmyk(82.1%, 21.4%, 0%, 54.1%)
CIE-LAB	lab(36.17, -11.89, -20.21)
CIE-LCH	lch(36.17, 23.45, 239.53°)
OKLab	oklab(44.47% -0.0531 -0.0568)
OKLCH	oklch(44.47% 0.078 226.9)
XYZ	xyz(7.3460, 9.0972, 18.1949)
Luminance	0.0910 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155C75 #752E15

analogous

#15755E #155C75 #152C75

triadic

#155C75 #75155C #5C7515

tetradic

#155C75 #5E1575 #752E15 #2C7515

square

#155C75 #5E1575 #752E15 #2C7515

split-complementary

#155C75 #75152C #755E15

monochromatic

#05141A #0C3341 #155C75 #1E85A9 #2BACD9

Accessibility & contrast

On white

7.45

#155C75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#155C75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155C75

7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155C75	#FFFFFF	#000000	##FFFFFF
##155C75	1.00	7.45	2.82	7.45
#FFFFFF	7.45	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F5A76

Deuteranopia (green-blind)

#425175

Tritanopia (blue-blind)

#006364

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #155c75;
/* rgb */ color: rgb(21, 92, 117);
/* oklch */ color: oklch(44.5% 0.078 226.9);

Tailwind

colors: {
  custom: {
    50: '#648a9d',
    500: '#155c75',
    950: '#000000',
  },
}

SCSS

$custom: #155c75;
$custom-light: #648a9d;
$custom-dark: #000000;

JSON

{
  "hex": "#155c75",
  "rgb": {
    "r": 21,
    "g": 92,
    "b": 117
  },
  "hsl": {
    "h": 195.625,
    "s": 69.565,
    "l": 27.059
  },
  "oklch": {
    "l": 0.44472,
    "c": 0.07773,
    "h": 226.9
  },
  "luminance": 0.09098
}

Semantic roles & 50–950 ramp

primary

#155C75

secondary

#AB583B

accent

#6A3BEC

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#060B0E

muted

#7A7C7E

Preview Lab

Preview with #155C75

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

Preview Lab → · Contrast checker → · Palette generator →