#15539E#15539E

#15539E is a dark, vivid cyan. Relative luminance 0.088; OKLCH L 44.8% C 0.136 H 256.1°. Best body text is #FFFFFF at 7.60:1 contrast (WCAG AA passes).

Color values

HEX#15539E
RGBrgb(21, 83, 158)
HSLhsl(213, 77%, 35%)
HSVhsv(213, 87%, 62%)
CMYKcmyk(86.7%, 47.5%, 0%, 38%)
CIE-LABlab(35.62, 10.11, -46.06)
CIE-LCHlch(35.62, 47.16, 282.38°)
OKLaboklab(44.79% -0.0327 -0.1324)
OKLCHoklch(44.79% 0.136 256.1)
XYZxyz(9.5718, 8.8134, 33.5378)
Luminance0.0882 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#15539E #9E6015
analogous
#15979E #15539E #1C159E
triadic
#15539E #9E1553 #539E15
tetradic
#15539E #9E1597 #9E6015 #159E1C
square
#15539E #9E1597 #9E6015 #159E1C
split-complementary
#15539E #9E1C15 #979E15
monochromatic
#071A32 #0E3768 #15539E #1C6FD4 #478FE7

Accessibility & contrast

On white

7.60
#15539E on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.76
#15539E on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15539E
7.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##15539E#FFFFFF#000000##FFFFFF
##15539E1.007.602.767.60
#FFFFFF7.601.0021.001.00
#0000002.7621.001.0021.00
##FFFFFF7.601.0021.001.00

Color blindness preview

Protanopia (red-blind)
#295AA1
Deuteranopia (green-blind)
#004E9D
Tritanopia (blue-blind)
#006571
Achromatopsia (no color)
#545454

Design tokens & code

CSS
--color: #15539e;
/* rgb */ color: rgb(21, 83, 158);
/* oklch */ color: oklch(44.8% 0.136 256.1);
Tailwind
colors: {
  custom: {
    50: '#6d82bb',
    500: '#15539e',
    950: '#000000',
  },
}
SCSS
$custom: #15539e;
$custom-light: #6d82bb;
$custom-dark: #000000;
JSON
{
  "hex": "#15539e",
  "rgb": {
    "r": 21,
    "g": 83,
    "b": 158
  },
  "hsl": {
    "h": 212.847,
    "s": 76.536,
    "l": 35.098
  },
  "oklch": {
    "l": 0.44786,
    "c": 0.13642,
    "h": 256.1
  },
  "luminance": 0.08815
}

Semantic roles & 50–950 ramp

primary
#15539E
secondary
#C78D47
accent
#9D35F3
background
#F7F7FB
surface
#EDEEF6
border
#C8C9D0
text
#080A12
muted
#7B7C81

Preview Lab

Preview with #15539E

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

Preview Lab → · Contrast checker → · Palette generator →

#15539E Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva