#155D74#155D74

#155D74 is a dark, moderate cyan. Relative luminance 0.092; OKLCH L 44.7% C 0.077 H 224.6°. Best body text is #FFFFFF at 7.37:1 contrast (WCAG AA passes).

Color values

HEX	#155D74
RGB	rgb(21, 93, 116)
HSL	hsl(195, 69%, 27%)
HSV	hsv(195, 82%, 45%)
CMYK	cmyk(81.9%, 19.8%, 0%, 54.5%)
CIE-LAB	lab(36.46, -12.85, -19.15)
CIE-LCH	lch(36.46, 23.06, 236.13°)
OKLab	oklab(44.69% -0.0545 -0.0537)
OKLCH	oklch(44.69% 0.077 224.6)
XYZ	xyz(7.3747, 9.2482, 17.9160)
Luminance	0.0925 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155D74 #742C15

analogous

#15745C #155D74 #152E74

triadic

#155D74 #74155D #5D7415

tetradic

#155D74 #5C1574 #742C15 #2E7415

square

#155D74 #5C1574 #742C15 #2E7415

split-complementary

#155D74 #74152E #745C15

monochromatic

#05151A #0C3340 #155D74 #1E87A8 #2BAFD9

Accessibility & contrast

On white

7.37

#155D74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#155D74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155D74

7.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155D74	#FFFFFF	#000000	##FFFFFF
##155D74	1.00	7.37	2.85	7.37
#FFFFFF	7.37	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#505B75

Deuteranopia (green-blind)

#445274

Tritanopia (blue-blind)

#006465

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #155d74;
/* rgb */ color: rgb(21, 93, 116);
/* oklch */ color: oklch(44.7% 0.077 224.6);

Tailwind

colors: {
  custom: {
    50: '#648b9c',
    500: '#155d74',
    950: '#000000',
  },
}

SCSS

$custom: #155d74;
$custom-light: #648b9c;
$custom-dark: #000000;

JSON

{
  "hex": "#155d74",
  "rgb": {
    "r": 21,
    "g": 93,
    "b": 116
  },
  "hsl": {
    "h": 194.526,
    "s": 69.343,
    "l": 26.863
  },
  "oklch": {
    "l": 0.44687,
    "c": 0.07656,
    "h": 224.6
  },
  "luminance": 0.09249
}

Semantic roles & 50–950 ramp

primary

#155D74

secondary

#AA563B

accent

#663CEC

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#060C0E

muted

#7A7D7E

Preview Lab

Preview with #155D74

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

Preview Lab → · Contrast checker → · Palette generator →