#15637F#15637F

#15637F is a mid, moderate cyan. Relative luminance 0.106; OKLCH L 46.8% C 0.084 H 227.8°. Best body text is #FFFFFF at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#15637F
RGB	rgb(21, 99, 127)
HSL	hsl(196, 72%, 29%)
HSV	hsv(196, 83%, 50%)
CMYK	cmyk(83.5%, 22%, 0%, 50.2%)
CIE-LAB	lab(38.92, -12.27, -22.07)
CIE-LCH	lch(38.92, 25.25, 240.94°)
OKLab	oklab(46.82% -0.0563 -0.0621)
OKLCH	oklch(46.82% 0.084 227.8)
XYZ	xyz(8.6003, 10.6143, 21.6701)
Luminance	0.1061 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15637F #7F3115

analogous

#157F66 #15637F #152E7F

triadic

#15637F #7F1563 #637F15

tetradic

#15637F #66157F #7F3115 #2E7F15

square

#15637F #66157F #7F3115 #2E7F15

split-complementary

#15637F #7F152E #7F6615

monochromatic

#04141A #0C3A4A #15637F #1E8CB4 #31B0DD

Accessibility & contrast

On white

6.72

#15637F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#15637F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #15637F

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15637F	#FFFFFF	#000000	##FFFFFF
##15637F	1.00	6.72	3.12	6.72
#FFFFFF	6.72	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#546180

Deuteranopia (green-blind)

#46577F

Tritanopia (blue-blind)

#006B6C

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #15637f;
/* rgb */ color: rgb(21, 99, 127);
/* oklch */ color: oklch(46.8% 0.084 227.8);

Tailwind

colors: {
  custom: {
    50: '#668fa4',
    500: '#15637f',
    950: '#000000',
  },
}

SCSS

$custom: #15637f;
$custom-light: #668fa4;
$custom-dark: #000000;

JSON

{
  "hex": "#15637f",
  "rgb": {
    "r": 21,
    "g": 99,
    "b": 127
  },
  "hsl": {
    "h": 195.849,
    "s": 71.622,
    "l": 29.02
  },
  "oklch": {
    "l": 0.46824,
    "c": 0.08377,
    "h": 227.8
  },
  "luminance": 0.10615
}

Semantic roles & 50–950 ramp

primary

#15637F

secondary

#B45C3C

accent

#6939EE

background

#F6F8FA

surface

#EBF0F4

border

#C6CBCE

text

#070C0F

muted

#7A7D7F

Preview Lab

Preview with #15637F

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

Preview Lab → · Contrast checker → · Palette generator →