#15647B#15647B

#15647B is a mid, moderate cyan. Relative luminance 0.107; OKLCH L 46.9% C 0.080 H 222.7°. Best body text is #FFFFFF at 6.69:1 contrast (WCAG AA passes).

Color values

HEX#15647B
RGBrgb(21, 100, 123)
HSLhsl(194, 71%, 28%)
HSVhsv(194, 83%, 48%)
CMYKcmyk(82.9%, 18.7%, 0%, 51.8%)
CIE-LABlab(39.08, -14.32, -19.40)
CIE-LCHlch(39.08, 24.12, 233.56°)
OKLaboklab(46.89% -0.0589 -0.0544)
OKLCHoklch(46.89% 0.08 222.7)
XYZxyz(8.4401, 10.7028, 20.3561)
Luminance0.1070 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#15647B #7B2C15
analogous
#157B5F #15647B #15317B
triadic
#15647B #7B1564 #647B15
tetradic
#15647B #5F157B #7B2C15 #317B15
square
#15647B #5F157B #7B2C15 #317B15
split-complementary
#15647B #7B1531 #7B5F15
monochromatic
#04151A #0C3947 #15647B #1E8EAF #2FB5DB

Accessibility & contrast

On white

6.69
#15647B on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.14
#15647B on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #15647B
6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##15647B#FFFFFF#000000##FFFFFF
##15647B1.006.693.146.69
#FFFFFF6.691.0021.001.00
#0000003.1421.001.0021.00
##FFFFFF6.691.0021.001.00

Color blindness preview

Protanopia (red-blind)
#57617C
Deuteranopia (green-blind)
#49587B
Tritanopia (blue-blind)
#006B6B
Achromatopsia (no color)
#5C5C5C

Design tokens & code

CSS
--color: #15647b;
/* rgb */ color: rgb(21, 100, 123);
/* oklch */ color: oklch(46.9% 0.080 222.7);
Tailwind
colors: {
  custom: {
    50: '#6690a1',
    500: '#15647b',
    950: '#000000',
  },
}
SCSS
$custom: #15647b;
$custom-light: #6690a1;
$custom-dark: #000000;
JSON
{
  "hex": "#15647b",
  "rgb": {
    "r": 21,
    "g": 100,
    "b": 123
  },
  "hsl": {
    "h": 193.529,
    "s": 70.833,
    "l": 28.235
  },
  "oklch": {
    "l": 0.46888,
    "c": 0.08018,
    "h": 222.7
  },
  "luminance": 0.10704
}

Semantic roles & 50–950 ramp

primary
#15647B
secondary
#B0563B
accent
#633AEE
background
#F6F8F9
surface
#EBF0F2
border
#C6CBCC
text
#070C0F
muted
#7A7D7E

Preview Lab

Preview with #15647B

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

Preview Lab → · Contrast checker → · Palette generator →

#15647B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva