#155C7A#155C7A

#155C7A is a dark, moderate cyan. Relative luminance 0.092; OKLCH L 44.7% C 0.082 H 231.7°. Best body text is #FFFFFF at 7.38:1 contrast (WCAG AA passes).

Color values

HEX	#155C7A
RGB	rgb(21, 92, 122)
HSL	hsl(198, 71%, 28%)
HSV	hsv(198, 83%, 48%)
CMYK	cmyk(82.8%, 24.6%, 0%, 52.2%)
CIE-LAB	lab(36.40, -10.01, -22.93)
CIE-LCH	lch(36.40, 25.02, 246.43°)
OKLab	oklab(44.73% -0.0511 -0.0646)
OKLCH	oklch(44.73% 0.082 231.7)
XYZ	xyz(7.6478, 9.2179, 19.7847)
Luminance	0.0922 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155C7A #7A3315

analogous

#157A65 #155C7A #15297A

triadic

#155C7A #7A155C #5C7A15

tetradic

#155C7A #65157A #7A3315 #297A15

square

#155C7A #65157A #7A3315 #297A15

split-complementary

#155C7A #7A1529 #7A6515

monochromatic

#04141A #0C3546 #155C7A #1E83AE #2EA8DB

Accessibility & contrast

On white

7.38

#155C7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#155C7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155C7A

7.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155C7A	#FFFFFF	#000000	##FFFFFF
##155C7A	1.00	7.38	2.84	7.38
#FFFFFF	7.38	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D5B7B

Deuteranopia (green-blind)

#40517A

Tritanopia (blue-blind)

#006466

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #155c7a;
/* rgb */ color: rgb(21, 92, 122);
/* oklch */ color: oklch(44.7% 0.082 231.7);

Tailwind

colors: {
  custom: {
    50: '#658aa0',
    500: '#155c7a',
    950: '#000000',
  },
}

SCSS

$custom: #155c7a;
$custom-light: #658aa0;
$custom-dark: #000000;

JSON

{
  "hex": "#155c7a",
  "rgb": {
    "r": 21,
    "g": 92,
    "b": 122
  },
  "hsl": {
    "h": 197.822,
    "s": 70.629,
    "l": 28.039
  },
  "oklch": {
    "l": 0.44731,
    "c": 0.08238,
    "h": 231.7
  },
  "luminance": 0.09219
}

Semantic roles & 50–950 ramp

primary

#155C7A

secondary

#AF5E3B

accent

#703AED

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#060B0E

muted

#7A7C7E

Preview Lab

Preview with #155C7A

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

Preview Lab → · Contrast checker → · Palette generator →