#15597E#15597E

#15597E is a dark, moderate cyan. Relative luminance 0.088; OKLCH L 44.2% C 0.089 H 238.3°. Best body text is #FFFFFF at 7.60:1 contrast (WCAG AA passes).

Color values

HEX#15597E
RGBrgb(21, 89, 126)
HSLhsl(201, 71%, 29%)
HSVhsv(201, 83%, 49%)
CMYKcmyk(83.3%, 29.4%, 0%, 50.6%)
CIE-LABlab(35.62, -6.64, -26.62)
CIE-LCHlch(35.62, 27.44, 256.00°)
OKLaboklab(44.17% -0.0466 -0.0753)
OKLCHoklch(44.17% 0.089 238.3)
XYZxyz(7.6460, 8.8096, 21.0321)
Luminance0.0881 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#15597E #7E3A15
analogous
#157E6F #15597E #15257E
triadic
#15597E #7E1559 #597E15
tetradic
#15597E #6F157E #7E3A15 #257E15
square
#15597E #6F157E #7E3A15 #257E15
split-complementary
#15597E #7E1525 #7E6F15
monochromatic
#04131A #0C344A #15597E #1E7EB2 #31A0DD

Accessibility & contrast

On white

7.60
#15597E on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.76
#15597E on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15597E
7.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##15597E#FFFFFF#000000##FFFFFF
##15597E1.007.602.767.60
#FFFFFF7.601.0021.001.00
#0000002.7621.001.0021.00
##FFFFFF7.601.0021.001.00

Color blindness preview

Protanopia (red-blind)
#475980
Deuteranopia (green-blind)
#394F7D
Tritanopia (blue-blind)
#006266
Achromatopsia (no color)
#545454

Design tokens & code

CSS
--color: #15597e;
/* rgb */ color: rgb(21, 89, 126);
/* oklch */ color: oklch(44.2% 0.089 238.3);
Tailwind
colors: {
  custom: {
    50: '#6587a3',
    500: '#15597e',
    950: '#000000',
  },
}
SCSS
$custom: #15597e;
$custom-light: #6587a3;
$custom-dark: #000000;
JSON
{
  "hex": "#15597e",
  "rgb": {
    "r": 21,
    "g": 89,
    "b": 126
  },
  "hsl": {
    "h": 201.143,
    "s": 71.429,
    "l": 28.824
  },
  "oklch": {
    "l": 0.4417,
    "c": 0.08858,
    "h": 238.3
  },
  "luminance": 0.08811
}

Semantic roles & 50–950 ramp

primary
#15597E
secondary
#B3663C
accent
#793AEE
background
#F6F8FA
surface
#EBEFF4
border
#C6CACE
text
#070B0F
muted
#7A7C7F

Preview Lab

Preview with #15597E

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

Preview Lab → · Contrast checker → · Palette generator →

#15597E Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva