#155A74#155A74

#155A74 is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 43.9% C 0.078 H 228.5°. Best body text is #FFFFFF at 7.65:1 contrast (WCAG AA passes).

Color values

HEX	#155A74
RGB	rgb(21, 90, 116)
HSL	hsl(196, 69%, 27%)
HSV	hsv(196, 82%, 45%)
CMYK	cmyk(81.9%, 22.4%, 0%, 54.5%)
CIE-LAB	lab(35.46, -11.08, -20.69)
CIE-LCH	lch(35.46, 23.47, 241.83°)
OKLab	oklab(43.89% -0.0514 -0.0582)
OKLCH	oklch(43.89% 0.078 228.5)
XYZ	xyz(7.1165, 8.7318, 17.8300)
Luminance	0.0873 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155A74 #742F15

analogous

#15745F #155A74 #152B74

triadic

#155A74 #74155A #5A7415

tetradic

#155A74 #5F1574 #742F15 #2B7415

square

#155A74 #5F1574 #742F15 #2B7415

split-complementary

#155A74 #74152B #745F15

monochromatic

#05141A #0C3240 #155A74 #1E82A8 #2BA9D9

Accessibility & contrast

On white

7.65

#155A74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#155A74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155A74

7.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155A74	#FFFFFF	#000000	##FFFFFF
##155A74	1.00	7.65	2.75	7.65
#FFFFFF	7.65	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C5875

Deuteranopia (green-blind)

#404F74

Tritanopia (blue-blind)

#006163

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #155a74;
/* rgb */ color: rgb(21, 90, 116);
/* oklch */ color: oklch(43.9% 0.078 228.5);

Tailwind

colors: {
  custom: {
    50: '#64889c',
    500: '#155a74',
    950: '#000000',
  },
}

SCSS

$custom: #155a74;
$custom-light: #64889c;
$custom-dark: #000000;

JSON

{
  "hex": "#155a74",
  "rgb": {
    "r": 21,
    "g": 90,
    "b": 116
  },
  "hsl": {
    "h": 196.421,
    "s": 69.343,
    "l": 26.863
  },
  "oklch": {
    "l": 0.4389,
    "c": 0.07762,
    "h": 228.5
  },
  "luminance": 0.08733
}

Semantic roles & 50–950 ramp

primary

#155A74

secondary

#AA593B

accent

#6C3CEC

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0E

muted

#7A7C7E

Preview Lab

Preview with #155A74

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

Preview Lab → · Contrast checker → · Palette generator →