#15657B#15657B

#15657B is a mid, moderate cyan. Relative luminance 0.109; OKLCH L 47.2% C 0.080 H 221.5°. Best body text is #FFFFFF at 6.61:1 contrast (WCAG AA passes).

Color values

HEX#15657B
RGBrgb(21, 101, 123)
HSLhsl(193, 71%, 28%)
HSVhsv(193, 83%, 48%)
CMYKcmyk(82.9%, 17.9%, 0%, 51.8%)
CIE-LABlab(39.40, -14.90, -18.90)
CIE-LCHlch(39.40, 24.06, 231.75°)
OKLaboklab(47.15% -0.0599 -0.0529)
OKLCHoklch(47.15% 0.08 221.5)
XYZxyz(8.5366, 10.8958, 20.3882)
Luminance0.1090 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#15657B #7B2B15
analogous
#157B5E #15657B #15327B
triadic
#15657B #7B1565 #657B15
tetradic
#15657B #5E157B #7B2B15 #327B15
square
#15657B #5E157B #7B2B15 #327B15
split-complementary
#15657B #7B1532 #7B5E15
monochromatic
#04151A #0C3A47 #15657B #1E90AF #2FB6DB

Accessibility & contrast

On white

6.61
#15657B on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.18
#15657B on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #15657B
6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##15657B#FFFFFF#000000##FFFFFF
##15657B1.006.613.186.61
#FFFFFF6.611.0021.001.00
#0000003.1821.001.0021.00
##FFFFFF6.611.0021.001.00

Color blindness preview

Protanopia (red-blind)
#58627C
Deuteranopia (green-blind)
#4B597B
Tritanopia (blue-blind)
#006C6C
Achromatopsia (no color)
#5D5D5D

Design tokens & code

CSS
--color: #15657b;
/* rgb */ color: rgb(21, 101, 123);
/* oklch */ color: oklch(47.2% 0.080 221.5);
Tailwind
colors: {
  custom: {
    50: '#6691a1',
    500: '#15657b',
    950: '#000000',
  },
}
SCSS
$custom: #15657b;
$custom-light: #6691a1;
$custom-dark: #000000;
JSON
{
  "hex": "#15657b",
  "rgb": {
    "r": 21,
    "g": 101,
    "b": 123
  },
  "hsl": {
    "h": 192.941,
    "s": 70.833,
    "l": 28.235
  },
  "oklch": {
    "l": 0.47152,
    "c": 0.07997,
    "h": 221.5
  },
  "luminance": 0.10897
}

Semantic roles & 50–950 ramp

primary
#15657B
secondary
#B0553B
accent
#613AEE
background
#F6F8F9
surface
#EBF0F2
border
#C6CBCC
text
#070C0F
muted
#7A7D7E

Preview Lab

Preview with #15657B

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

Preview Lab → · Contrast checker → · Palette generator →

#15657B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva