#15557C#15557C

#15557C is a dark, moderate cyan. Relative luminance 0.081; OKLCH L 43.0% C 0.089 H 241.0°. Best body text is #FFFFFF at 8.01:1 contrast (WCAG AA passes).

Color values

HEX	#15557C
RGB	rgb(21, 85, 124)
HSL	hsl(203, 71%, 28%)
HSV	hsv(203, 83%, 49%)
CMYK	cmyk(83.1%, 31.5%, 0%, 51.4%)
CIE-LAB	lab(34.21, -4.93, -27.59)
CIE-LCH	lch(34.21, 28.03, 259.87°)
OKLab	oklab(43.02% -0.0433 -0.0782)
OKLCH	oklch(43.02% 0.089 241)
XYZ	xyz(7.1944, 8.1108, 20.2512)
Luminance	0.0811 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15557C #7C3C15

analogous

#157C6F #15557C #15227C

triadic

#15557C #7C1555 #557C15

tetradic

#15557C #6F157C #7C3C15 #227C15

square

#15557C #6F157C #7C3C15 #227C15

split-complementary

#15557C #7C1522 #7C6F15

monochromatic

#04121A #0C3148 #15557C #1E79B0 #309BDC

Accessibility & contrast

On white

8.01

#15557C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#15557C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15557C

8.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15557C	#FFFFFF	#000000	##FFFFFF
##15557C	1.00	8.01	2.62	8.01
#FFFFFF	8.01	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#43567E

Deuteranopia (green-blind)

#354C7B

Tritanopia (blue-blind)

#005F63

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #15557c;
/* rgb */ color: rgb(21, 85, 124);
/* oklch */ color: oklch(43.0% 0.089 241.0);

Tailwind

colors: {
  custom: {
    50: '#6584a2',
    500: '#15557c',
    950: '#000000',
  },
}

SCSS

$custom: #15557c;
$custom-light: #6584a2;
$custom-dark: #000000;

JSON

{
  "hex": "#15557c",
  "rgb": {
    "r": 21,
    "g": 85,
    "b": 124
  },
  "hsl": {
    "h": 202.718,
    "s": 71.034,
    "l": 28.431
  },
  "oklch": {
    "l": 0.43024,
    "c": 0.08942,
    "h": 241
  },
  "luminance": 0.08112
}

Semantic roles & 50–950 ramp

primary

#15557C

secondary

#B1683C

accent

#7E3AEE

background

#F6F8FA

surface

#EBEFF3

border

#C6CACD

text

#060A0F

muted

#7A7C7F

Preview Lab

Preview with #15557C

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

Preview Lab → · Contrast checker → · Palette generator →