#155B7C#155B7C

#155B7C is a dark, moderate cyan. Relative luminance 0.091; OKLCH L 44.6% C 0.085 H 234.5°. Best body text is #FFFFFF at 7.45:1 contrast (WCAG AA passes).

Color values

HEX	#155B7C
RGB	rgb(21, 91, 124)
HSL	hsl(199, 71%, 28%)
HSV	hsv(199, 83%, 49%)
CMYK	cmyk(83.1%, 26.6%, 0%, 51.4%)
CIE-LAB	lab(36.17, -8.64, -24.53)
CIE-LCH	lch(36.17, 26.00, 250.60°)
OKLab	oklab(44.58% -0.0493 -0.0692)
OKLCH	oklch(44.58% 0.085 234.5)
XYZ	xyz(7.6870, 9.0959, 20.4154)
Luminance	0.0910 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155B7C #7C3615

analogous

#157C69 #155B7C #15287C

triadic

#155B7C #7C155B #5B7C15

tetradic

#155B7C #69157C #7C3615 #287C15

square

#155B7C #69157C #7C3615 #287C15

split-complementary

#155B7C #7C1528 #7C6915

monochromatic

#04131A #0C3548 #155B7C #1E81B0 #30A5DC

Accessibility & contrast

On white

7.45

#155B7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#155B7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155B7C

7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155B7C	#FFFFFF	#000000	##FFFFFF
##155B7C	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)

#4B5A7E

Deuteranopia (green-blind)

#3D517B

Tritanopia (blue-blind)

#006466

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #155b7c;
/* rgb */ color: rgb(21, 91, 124);
/* oklch */ color: oklch(44.6% 0.085 234.5);

Tailwind

colors: {
  custom: {
    50: '#6589a2',
    500: '#155b7c',
    950: '#000000',
  },
}

SCSS

$custom: #155b7c;
$custom-light: #6589a2;
$custom-dark: #000000;

JSON

{
  "hex": "#155b7c",
  "rgb": {
    "r": 21,
    "g": 91,
    "b": 124
  },
  "hsl": {
    "h": 199.223,
    "s": 71.034,
    "l": 28.431
  },
  "oklch": {
    "l": 0.44578,
    "c": 0.08501,
    "h": 234.5
  },
  "luminance": 0.09097
}

Semantic roles & 50–950 ramp

primary

#155B7C

secondary

#B1613C

accent

#743AEE

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#070B0F

muted

#7A7C7E

Preview Lab

Preview with #155B7C

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

Preview Lab → · Contrast checker → · Palette generator →